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Best Alphacool Aio Liquid Coolers Under $150: 15 Spec-Based Picks

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Finding the best alphacool aio liquid coolers under $150 requires matching radiator dimensions and port layouts to your PC chassis. This guide compares 15 liquid cooling models based strictly on the specifications published on their listings.

The Alphacool NexXxoS ST30 480mm Full Copper Radiator leads the list because its slim 1.18-inch profile delivers extensive copper surface area for quad-fan setups. This breakdown helps you decide which radiator dimensions, core thickness, and port configurations best match your custom liquid cooling loop.

Quick picks

#ProductBest forPrice
1 Alphacool NexXxoS ST30 480mm Full Copper Radiator Best overall slim quad-fan custom liquid cooling loops Check price of Alphacool NexXxoS ST30 480mm Full Copper Radiator on Amazon
2 Alphacool NexXxos XT45 480mm Copper Radiator Also great large cases requiring multi-port 480mm cooling Check price of Alphacool NexXxos XT45 480mm Copper Radiator on Amazon
3 Alphacool NexXxos UT60 360mm Copper Radiator Also great high-clearance cases needing thick copper cooling loops Check price of Alphacool NexXxos UT60 360mm Copper Radiator on Amazon
4 Alphacool NexXxoS XT45 Full Copper 180mm Radiator Best 180mm PC cases with single 180mm fan mounts Check price of Alphacool NexXxoS XT45 Full Copper 180mm Radiator on Amazon
5 Alphacool NexXxos UT60 360mm White Radiator Best premium spacious white-themed custom liquid cooling loops Check price of Alphacool NexXxos UT60 360mm White Radiator on Amazon
6 Alphacool NexXxoS XT45 X-Flow 360mm Radiator Best budget custom loops needing cross-flow 360mm copper radiators Check price of Alphacool NexXxoS XT45 X-Flow 360mm Radiator on Amazon
7 Alphacool NexXxos ST30 480mm X-Flow Radiator Also great slim quad-fan cross-flow custom loops Check price of Alphacool NexXxos ST30 480mm X-Flow Radiator on Amazon
8 Alphacool Eisbecher Aurora 250mm Acetal Reservoir Best acetal D5 loops requiring an acetal glass reservoir Check price of Alphacool Eisbecher Aurora 250mm Acetal Reservoir on Amazon
9 Alphacool NexXxoS ST20 HPE Copper 360mm Radiator Also great slim-clearance builds needing a 360mm radiator Check price of Alphacool NexXxoS ST20 HPE Copper 360mm Radiator on Amazon
10 Alphacool NexXxoS HPE-30 360mm Copper Radiator Also great slim 360mm custom cooling loops Check price of Alphacool NexXxoS HPE-30 360mm Copper Radiator on Amazon
11 Alphacool NexXxoS HPE-45 240mm Radiator Best 240mm compact builds needing thick 240mm radiator cooling Check price of Alphacool NexXxoS HPE-45 240mm Radiator on Amazon
12 Alphacool Core 1 CPU Water Block Also great LGA 1700 and AM5 custom loop builds Check price of Alphacool Core 1 CPU Water Block on Amazon
13 Alphacool NexXxoS HPE-45 Full Copper Radiator, White Also great white custom loops with 45mm clearance Check price of Alphacool NexXxoS HPE-45 Full Copper Radiator, White on Amazon
14 Alphacool NexXxoS HPE-30 White Radiator Also great white custom loops needing slim 360mm clearance Check price of Alphacool NexXxoS HPE-30 White Radiator on Amazon
15 Alphacool ES RTX 4080 1-Slot GPU Water Block Also great rackmount server RTX 4080 liquid cooling Check price of Alphacool ES RTX 4080 1-Slot GPU Water Block on Amazon

The best fit for you

Our 15 picks

Best overall

Alphacool NexXxoS ST30 480mm Full Copper Radiator

Best for: slim quad-fan custom liquid cooling loops

Radiator Size
480mm
Material
Copper
Dimensions
21.7 × 4.88 × 1.18 inches
Weight
1.76 pounds

View on Amazon: Alphacool NexXxoS ST30 480mm Full Copper Radiator

This unit is a 480mm liquid cooling radiator built for quad 120mm fan configurations. You get copper cooling channels, copper fins, copper chambers, brass threads, and steel side panels in a black finish. At 30mm thick and 552mm long, it fits cases with space for large mounts while maintaining a slim profile. You connect it to your custom loop through two standard G1/4-inch ports.

Pros

  • Copper construction across cooling fins, channels, and chambers
  • Slim 30mm thickness aids clearance in tight mounts
  • Accepts four 120mm fans across a 480mm frame
  • Standard dual G1/4-inch threaded ports

Cons

  • Offers only two G1/4-inch ports
  • 552mm total length requires an extra-large PC chassis

Good fit if

  • You need a slim 30mm radiator that accommodates four 120mm fans.
  • You want an all-copper internal core with brass threads and steel side panels.

Skip if

  • You have a compact case unable to accommodate a 552mm radiator length.
  • You require more than two G1/4-inch ports for multi-directional tubing routes.

Verdict: Alphacool NexXxos ST30 480mm Full Copper Radiator delivers extensive surface area for quad-fan setups within a slim 30mm profile. Its all-copper core ensures full material compatibility for standard copper-based cooling loops.

Also great

Alphacool NexXxos XT45 480mm Copper Radiator

Best for: large cases requiring multi-port 480mm cooling

Radiator Size
480mm
Material
Copper
Dimensions
22.8 × 5.51 × 2.36 inches
Weight
1.76 pounds

View on Amazon: Alphacool NexXxos XT45 480mm Copper Radiator

The Alphacool NexXxoS XT45 is a 480mm quad-fan liquid-cooling radiator. It features copper cooling fins, channels, and water chambers housed inside steel side panels. With six G1/4-inch ports and a 46mm thickness, you get versatile loop routing along with deep fin coverage. At 522mm long and weighing 1,897g, you will need a large PC case with plenty of clearance to accommodate its substantial footprint.

Pros

  • Copper fins, water chambers, and internal cooling channels
  • Six G1/4-inch connection ports for flexible tubing routes
  • 46mm thickness delivers expanded surface area over slim designs
  • Quad 120mm fan capacity across a 480mm bracket layout

Cons

  • Overall length of 522mm limits chassis compatibility
  • 46mm core depth requires extra clearance inside your case

Good fit if

  • You have a full-tower chassis that can fit a 522mm radiator.
  • You need six G1/4-inch ports to configure complex custom tubing runs.

Skip if

  • You work inside a compact chassis with limited radiator space.
  • You need a slim 30mm or thinner radiator profile.

Verdict: Alphacool NexXxoS XT45 480mm Full Copper Radiator delivers massive heat dissipation and six connection ports for full-sized liquid cooling setups. It is a capable choice if your chassis clears its 522mm frame.

Also great

Alphacool NexXxos UT60 360mm Copper Radiator

Best for: high-clearance cases needing thick copper cooling loops

Radiator Size
360mm
Material
Copper
Dimensions
15.7 × 2.36 × 4.88 inches
Weight
1.76 pounds

View on Amazon: Alphacool NexXxos UT60 360mm Copper Radiator

This 360mm triple-fan radiator features a deep 60mm thickness designed for extensive heat dissipation in custom cooling loops. Built with copper cooling channels, copper fins, copper chambers, and brass threads, it pairs high thermal conductivity with durable metal construction. You also get six G1/4-inch ports for flexible tubing routing across your setup. It suits you if your PC case offers ample clearance for a thick, multi-port cooling radiator.

Pros

  • Copper construction across cooling channels, fins, and chambers
  • Six G1/4-inch threaded ports for flexible routing
  • Substantial 60mm thickness provides large surface area

Cons

  • 60mm thickness requires significant case clearance
  • Fans are not included with the radiator
  • Heavier profile with a weight of 1,958g

Good fit if

  • You have a PC chassis with over 60mm of radiator clearance.
  • You need multiple G1/4-inch port options for custom loop routing.
  • You want all-copper internals including channels, fins, and chambers.

Skip if

  • You have a compact case with tight motherboard or RAM clearance.
  • You need a slim 30mm profile radiator to fit restricted spaces.

Verdict: Alphacool NexXxos UT60 360mm Radiator delivers massive heat dissipation through its 60mm-thick copper core and versatile six-port connectivity. It is an ideal high-clearance component for multi-block liquid cooling loops.

Best 180mm

Alphacool NexXxoS XT45 Full Copper 180mm Radiator

Best for: PC cases with single 180mm fan mounts

Radiator Size
180mm
Material
Copper
Dimensions
8.78 × 1.77 × 7.17 inches
Weight
1.06 kilograms

View on Amazon: Alphacool NexXxoS XT45 Full Copper 180mm Radiator

This is a 180mm single-fan radiator built with full copper construction for custom liquid cooling loops. It measures 8.78 inches long, 7.17 inches high, and 1.77 inches wide, offering a 45mm-class thickness profile. With a total weight of 1.06 kilograms and a black finish, it suits your build if you have a chassis designed specifically around 180mm fan mounts and require copper heat dissipation.

Pros

  • Full copper material construction
  • Dedicated 180mm radiator format
  • Substantial 1.77-inch thickness
  • Clean black finish

Cons

  • Requires chassis space for 180mm mounting
  • Thick 1.77-inch profile limits clearance in compact cases

Good fit if

  • You have a PC chassis with native support for a 180mm radiator.
  • You need a copper radiator with a 1.77-inch thickness.
  • You want a single-fan form factor finished in black.

Skip if

  • You use standard 120mm or 140mm fan mounting points.
  • You require a slim radiator thinner than 1.77 inches.

Verdict: Alphacool NexXxoS XT45 180mm Copper Radiator delivers full copper construction in a 1.77-inch thick profile for enclosures built around 180mm cooling mounts. It provides targeted thermal dissipation when standard 120mm and 140mm sizes do not match your case layout.

Best premium

Alphacool NexXxos UT60 360mm White Radiator

Best for: spacious white-themed custom liquid cooling loops

Radiator Size
360mm
Material
Copper
Dimensions
18.1 × 5.51 × 2.76 inches
Weight
3.87 pounds

View on Amazon: Alphacool NexXxos UT60 360mm White Radiator

This 360mm radiator features a 60mm thickness and a white finish for custom liquid cooling loops. You get full copper construction across the internal fins, channels, and chambers, paired with brass threads and steel side panels. Six G1/4-inch ports offer flexible tubing routes for your triple-fan setup. It suits you if you have ample chassis clearance and need high liquid volume with multiple port options for a clean build.

Pros

  • Six G1/4-inch threaded ports for versatile routing
  • Full copper fins, channels, and water chambers
  • Deep 60mm core provides high coolant volume
  • Durable steel side panels with brass thread inserts

Cons

  • Deep 60mm thickness limits small chassis compatibility
  • Heavy weight at 1,756 grams without fluid or fans

Good fit if

  • You have a spacious chassis with room for a 60mm thick radiator.
  • You want multiple G1/4-inch ports to simplify loop routing.
  • You need an all-copper cooling core with a white exterior finish.

Skip if

  • You build inside a compact case with tight motherboard clearance.
  • You prefer a slim 30mm radiator profile to reduce hardware bulk.

Verdict: Alphacool NexXxos UT60 360mm White Radiator delivers extensive routing options and high coolant capacity through six ports and a 60mm copper core. It fits roomy chassis where thermal volume takes priority over space savings.

Best budget

Alphacool NexXxoS XT45 X-Flow 360mm Radiator

Best for: custom loops needing cross-flow 360mm copper radiators

Radiator Size
360mm
Material
Copper
Dimensions
4.88 × 16.3 × 1.77 inches
Weight
2.39 pounds

View on Amazon: Alphacool NexXxoS XT45 X-Flow 360mm Radiator

This component is a 360mm full copper liquid cooling radiator built with an X-Flow channel design. At 1.77 inches thick and weighing 2.39 pounds, it offers greater heat exchange volume than standard slim units. You get solid copper construction finished in black. It suits your custom loop build if you need cross-flow port routing and have 16.3 inches of chassis length clearance.

Pros

  • Full copper construction for thermal transfer
  • 360mm frame accommodates triple fan setups
  • 1.77-inch thickness provides deep core volume
  • X-Flow design routes coolant across opposite ends

Cons

  • 16.3-inch total length requires extra chassis space
  • Fans and fittings not listed in specifications

Good fit if

  • You want an all-copper 360mm core for your cooling loop.
  • You need an X-Flow layout with ports at opposite ends.
  • You have clearance for a 1.77-inch thick radiator body.

Skip if

  • You need an all-in-one unit with integrated pump and fans.
  • You have a compact case unable to fit 16.3 inches of radiator length.

Verdict: Alphacool NexXxoS XT45 X-Flow 360mm Radiator delivers copper construction and 1.77 inches of thickness for custom liquid loops requiring opposite-end routing. It provides substantial cooling surface area if your PC chassis supports its extended length.

Also great

Alphacool NexXxos ST30 480mm X-Flow Radiator

Best for: slim quad-fan cross-flow custom loops

Radiator Size
480mm
Material
Copper
Dimensions
20.9 × 4.88 × 1.18 inches
Weight
1.88 pounds

View on Amazon: Alphacool NexXxos ST30 480mm X-Flow Radiator

This 480mm quad-fan radiator features an end-to-end X-Flow design with copper channels, copper fins, and copper chambers. At 30mm thick and 532mm long, it delivers large surface area while remaining slim for tight case clearances. You get four standard G1/4-inch ports, brass threads, and protective steel side panels. It suits custom loops where you have 532mm of mounting length and want cross-flow routing without adding vertical radiator bulk.

Pros

  • Copper fins, channels, and water chambers
  • Four standard G1/4" ports for routing options
  • Slim 30mm thickness simplifies component clearance
  • Reinforced with steel side panels and brass threads

Cons

  • Extended 532mm length demands large chassis space
  • Slim 30mm core holds less fluid than thicker models

Good fit if

  • You have a chassis that accommodates a 532mm radiator length.
  • You need a slim 30mm profile to avoid motherboard or memory interference.
  • You want four G1/4" threaded ports for plumbing versatility.

Skip if

  • You lack clearance for an extended 532mm total frame.
  • You prefer a thicker core profile for extra liquid capacity.

Verdict: Alphacool NexXxos ST30 X-Flow 480mm Radiator provides extensive copper surface area in a low-profile 30mm design. It fits builds that accommodate a 532mm span and require versatile multi-port routing.

Best acetal

Alphacool Eisbecher Aurora 250mm Acetal Reservoir

Best for: D5 loops requiring an acetal glass reservoir

Lighting Type
D-RGB
Material
Acetal
Pump Compatibility
D5
Dimensions
3.03 × 3.03 × 9.53 inches
Weight
1.66 pounds

View on Amazon: Alphacool Eisbecher Aurora 250mm Acetal Reservoir

You get a standalone 250mm glass reservoir built with a black acetal base designed for D5 pumps. It measures 77 x 77 x 242mm and integrates addressable D-RGB lighting with an internal water fountain tube effect. This component suits you if you already own or plan to source a separate D5 pump and need a tall, dedicated glass and acetal reservoir for your custom liquid cooling loop.

Pros

  • Glass tube construction paired with an acetal pump base
  • Integrated D-RGB lighting with a water fountain tube effect
  • Direct compatibility with D5 pump units
  • Generous 250mm reservoir tube height

Cons

  • Pump motor is not included
  • Overall height of 242mm requires substantial vertical case clearance

Good fit if

  • You have a standalone D5 pump ready to mount.
  • You want an acetal and glass reservoir with D-RGB illumination.
  • You have room in your chassis for a 242mm tall unit.

Skip if

  • You need an integrated solution that includes the pump.
  • You build in a compact enclosure with limited vertical mounting space.

Verdict: Alphacool Eisbecher Aurora 250mm Acetal Reservoir provides a glass and acetal housing tailored for D5 pump installations. It gives your loop dedicated D-RGB effects assuming you supply the pump and have adequate clearance.

Also great

Alphacool NexXxoS ST20 HPE Copper 360mm Radiator

Best for: slim-clearance builds needing a 360mm radiator

Radiator Size
360mm
Material
Copper

View on Amazon: Alphacool NexXxoS ST20 HPE Copper 360mm Radiator

The Alphacool NexXxoS ST20 HPE is a 360mm radiator designed with pure copper cooling fins and copper water-carrying parts. It measures 0.79 inches in height, giving you a slim black profile for tighter PC cases. This unit provides pure copper thermal conductivity across a 360mm form factor. You will find it suits your cooling setup if you require wide radiator coverage within restricted clearance depths.

Pros

  • Pure copper cooling fins and water-carrying components
  • Slim 0.79-inch profile height
  • Large 360mm radiator surface area
  • Matte black finish

Cons

  • Slim 0.79-inch profile limits internal volume compared to thicker models
  • Requires 360mm mounting space inside your case

Good fit if

  • You need a 360mm radiator with a low 0.79-inch profile for tight clearances.
  • You want all copper construction for water-carrying parts and cooling fins.

Skip if

  • You have clearance for thicker 1.18-inch radiators.
  • You need a smaller form factor such as 120mm, 140mm, 240mm, or 280mm.

Verdict: Alphacool NexXxoS ST20 HPE 360mm Radiator delivers pure copper heat transfer in a slim 0.79-inch frame. It is an ideal pick when you need 360mm cooling area but have limited mounting depth.

Also great

Alphacool NexXxoS HPE-30 360mm Copper Radiator

Best for: slim 360mm custom cooling loops

Radiator Size
360mm
Material
Copper
Dimensions
19.7 × 19.7 × 11 inches

View on Amazon: Alphacool NexXxoS HPE-30 360mm Copper Radiator

This 360mm full-copper radiator measures 391.5 x 124 x 30mm and features a slim 30mm profile for standard case mounts. Its pre-chambers, cooling fins, and 12 channels use pure copper for thermal transfer. With four G1/4-inch ports and a dedicated G1/4-inch fill and drain port, it offers flexible tubing routes. You will find it suits custom loops where clearance is tight and multiple port connections simplify routing.

Pros

  • Pure copper construction across pre-chambers, fins, and channels
  • Slim 30mm thickness fits restricted case mounts
  • Five total G1/4-inch ports including dedicated fill and drain port

Cons

  • Slim 30mm profile provides less coolant volume than 45mm models
  • Requires separate purchase of fans, pump, and fittings

Good fit if

  • You need a 360mm radiator that fits a 30mm depth clearance.
  • You want pure copper channels, fins, and chambers.
  • You plan to use a dedicated G1/4-inch drain port for loop maintenance.

Skip if

  • You have space for thicker 45mm or 60mm radiators.
  • You want a turnkey all-in-one cooler with integrated pump and fans.

Verdict: Alphacool NexXxoS HPE-30 360mm Copper Radiator delivers all-copper construction within a compact 30mm profile. Its five G1/4-inch connections make filling, draining, and tube routing straightforward in standard chassis spaces.

Best 240mm

Alphacool NexXxoS HPE-45 240mm Radiator

Best for: compact builds needing thick 240mm radiator cooling

Radiator Size
240mm
Material
Copper
Dimensions
19.7 × 19.7 × 11 inches
Weight
2.47 pounds

View on Amazon: Alphacool NexXxoS HPE-45 240mm Radiator

This is a 240mm copper liquid cooling radiator built for compact custom loops. It features a 45mm thickness, 24 cooling channels, and pure copper construction across its fins, channels, and chambers. You get four standard G1/4-inch ports along with a dedicated fill and drain port. It suits you if you need dense thermal performance in a dual 120mm fan space without expanding to larger frames.

Pros

  • Pure copper pre-chambers, fins, and channels
  • 24 cooling channels
  • Four G1/4-inch ports plus dedicated fill and drain port
  • 45mm thickness for increased internal fluid volume

Cons

  • 45mm thickness requires more case clearance than slim radiators
  • 240mm frame offers less surface area than 360mm or 480mm options

Good fit if

  • You need a compact 240mm radiator with pure copper construction.
  • You want multiple inlet and outlet ports with a dedicated drain port.
  • You have clearance for a 45mm thick radiator profile.

Skip if

  • You need a slim 20mm or 30mm profile to clear motherboard components.
  • You have space and mounting support for a larger 360mm or 480mm radiator.

Verdict: Alphacool NexXxoS HPE-45 240mm Radiator delivers pure copper build quality, 24 cooling channels, and flexible port options for mid-sized liquid cooling setups. It provides dense cooling capacity within a 271.5mm length.

Also great

Alphacool Core 1 CPU Water Block

Best for: LGA 1700 and AM5 custom loop builds

Socket Compatibility
AM4, AM5, LGA 1700
Dimensions
3.94 × 1.97 × 0.5 inches
Weight
2.12 pounds

View on Amazon: Alphacool Core 1 CPU Water Block

The Alphacool Core 1 CPU Water Block is a standalone cooling block designed for custom loops rather than an all-in-one setup. It measures 72 x 72 x 26.50mm and weighs 2.12 pounds in a white finish. You get direct socket support for Intel LGA 1700 alongside AMD AM4 and AM5 platforms. This unit suits you if you are assembling a custom loop system and already have a separate pump, reservoir, and radiator.

Pros

  • Compatible with Intel LGA 1700 and AMD AM4/AM5 sockets
  • Compact 72 x 72 x 26.50mm block dimensions
  • Available in four finish options including White, Black, Silver, and Carbon

Cons

  • Standalone CPU block requiring a separate pump, radiator, and tubing
  • Socket support limited strictly to LGA 1700, AM4, and AM5

Good fit if

  • You are building a custom liquid loop for an Intel LGA 1700 or AMD AM4/AM5 processor.
  • You need a compact 72 x 72 x 26.50mm CPU block with a white finish.

Skip if

  • You need a complete all-in-one cooler with an integrated pump, radiator, and tubing.
  • You use an Intel socket older than LGA 1700 or an AMD socket other than AM4 or AM5.

Verdict: Alphacool Core 1 CPU Water Block provides a dedicated cooling block for modern Intel and AMD sockets in custom loop builds. It requires you to supply your own external pump, radiator, and coolant lines.

Also great

Alphacool NexXxoS HPE-45 Full Copper Radiator, White

Best for: white custom loops with 45mm clearance

Radiator Size
360mm
Material
Copper
Size
120Mm
Dimensions
15.4 × 4.88 × 1.77 inches
Weight
3.45 pounds

View on Amazon: Alphacool NexXxoS HPE-45 Full Copper Radiator, White

This is a 360mm full copper liquid cooling radiator finished in white. It features Alphacool's HPE design, which packs a higher count of water channels and shortened copper fin rows into a 45mm profile. Measuring 391.5 by 124 by 45 millimeters, it provides expanded surface area over standard slim units. It suits you if you are building a custom loop with room for a thicker frame.

Pros

  • Full copper construction across fins and water channels
  • HPE design increases internal water channel count and fin density
  • 45mm thickness adds surface area over standard 30mm radiators
  • White finish matches light-themed custom loop builds

Cons

  • 45mm depth requires more case clearance than slim radiators
  • Does not include fans, fittings, or coolant

Good fit if

  • You want a full copper 360mm radiator in white
  • You have adequate case clearance for a 45mm-thick frame plus fans
  • You are building a custom loop requiring dense fin geometry

Skip if

  • You have a compact case limited to slim 20mm or 30mm radiators
  • You need an all-in-one unit with an integrated pump and fans

Verdict: Alphacool NexXxoS HPE-45 360mm White Radiator provides full copper construction and dense channel routing in a 45mm frame. It offers high heat dissipation capacity for builders with adequate case clearance.

Also great

Alphacool NexXxoS HPE-30 White Radiator

Best for: white custom loops needing slim 360mm clearance

Radiator Size
360mm
Material
Copper
Size
120Mm
Dimensions
15.4 × 4.88 × 1.18 inches
Weight
1.74 pounds

View on Amazon: Alphacool NexXxoS HPE-30 White Radiator

This 360mm radiator features full copper construction with a white finish. Measuring 391.5 x 124 x 30mm and weighing 1.74 pounds, its slim 30mm profile fits standard triple-fan mounts. The internal layout increases the number of water channels and shortened copper fin rows to maximize contact area. You get high-density surface utilization suited for compact custom liquid cooling loops requiring a white color scheme.

Pros

  • Full copper construction across channels and fins
  • Slim 30mm thickness for tight clearance spaces
  • Denser internal layout with increased water channels and fin rows
  • Clean white exterior finish

Cons

  • Fans are not included in the package
  • Slim 30mm thickness holds less liquid volume than thicker radiators

Good fit if

  • You need a slim 30mm radiator to fit restricted case clearances.
  • You are building a custom cooling loop with a white theme.
  • You want full copper construction with increased water channels.

Skip if

  • You need a thicker 45mm or 60mm radiator for higher fluid capacity.
  • You prefer a standard black finish for your components.

Verdict: Alphacool NexXxoS HPE-30 360mm White Radiator provides full copper heat dissipation in a compact 30mm-thick white frame. It delivers increased channel density for custom loops with limited mounting depth.

Also great

Alphacool ES RTX 4080 1-Slot GPU Water Block

Best for: rackmount server RTX 4080 liquid cooling

View on Amazon: Alphacool ES RTX 4080 1-Slot GPU Water Block

This GPU water block from Alphacool is designed for the Enterprise Series. It features a slim 1-slot form factor measuring 218.44 by 120.10 by 19.17 mm. The top and backplate use carbon construction for reduced weight compared to acrylic or acetal blocks. You get server rack connection positioning tailored specifically for compatible Inno3D and PNY GeForce RTX 4080 graphics cards.

Pros

  • Slim 1-slot height measuring 19.17 mm
  • Carbon top and backplate offer lighter weight than acetal or acrylic
  • Port positioning simplifies tubing connections inside server racks
  • Includes matching carbon backplate

Cons

  • Compatibility limited strictly to Inno3D and PNY RTX 4080 cards
  • Port placement is tailored specifically for server rack setups

Good fit if

  • You use a compatible Inno3D or PNY GeForce RTX 4080 card.
  • You need a compact 1-slot profile for high-density server racks.
  • You want a lightweight block made with carbon materials.

Skip if

  • You own a graphics card brand other than Inno3D or PNY.
  • You run a graphics card other than a GeForce RTX 4080.

Verdict: Alphacool ES RTX 4080 1-Slot GPU Water Block delivers a compact 19.17 mm profile with carbon construction for compatible server-mounted graphics cards.

Specifications side by side

Spec Alphacool NexXxoS ST30 480mm Full Copper Radiator Alphacool NexXxos XT45 480mm Copper Radiator Alphacool NexXxos UT60 360mm Copper Radiator Alphacool NexXxoS XT45 Full Copper 180mm Radiator Alphacool NexXxos UT60 360mm White Radiator Alphacool NexXxoS XT45 X-Flow 360mm Radiator Alphacool NexXxos ST30 480mm X-Flow Radiator Alphacool Eisbecher Aurora 250mm Acetal Reservoir Alphacool NexXxoS ST20 HPE Copper 360mm Radiator Alphacool NexXxoS HPE-30 360mm Copper Radiator Alphacool NexXxoS HPE-45 240mm Radiator Alphacool Core 1 CPU Water Block Alphacool NexXxoS HPE-45 Full Copper Radiator, White Alphacool NexXxoS HPE-30 White Radiator Alphacool ES RTX 4080 1-Slot GPU Water Block
Radiator Size 480mm 480mm 360mm 180mm 360mm 360mm 480mm not specified 360mm 360mm 240mm not specified 360mm 360mm not specified
Socket Compatibility not specified not specified not specified not specified not specified not specified not specified not specified not specified not specified not specified AM4, AM5, LGA 1700 not specified not specified not specified
Lighting Type not specified not specified not specified not specified not specified not specified not specified D-RGB not specified not specified not specified not specified not specified not specified not specified
Material Copper Copper Copper Copper Copper Copper Copper Acetal Copper Copper Copper not specified Copper Copper not specified
Pump Compatibility not specified not specified not specified not specified not specified not specified not specified D5 not specified not specified not specified not specified not specified not specified not specified
Size 480mm 480mm 360Mm 180mm 360Mm 360Mm 480mm 250mm 360Mm 360Mm 240Mm not specified 120Mm 120Mm not specified
Dimensions 21.7 × 4.88 × 1.18 inches 22.8 × 5.51 × 2.36 inches 15.7 × 2.36 × 4.88 inches 8.78 × 1.77 × 7.17 inches 18.1 × 5.51 × 2.76 inches 4.88 × 16.3 × 1.77 inches 20.9 × 4.88 × 1.18 inches 3.03 × 3.03 × 9.53 inches not specified 19.7 × 19.7 × 11 inches 19.7 × 19.7 × 11 inches 3.94 × 1.97 × 0.5 inches 15.4 × 4.88 × 1.77 inches 15.4 × 4.88 × 1.18 inches not specified
Weight 1.76 pounds 1.76 pounds 1.76 pounds 1.06 kilograms 3.87 pounds 2.39 pounds 1.88 pounds 1.66 pounds not specified not specified 2.47 pounds 2.12 pounds 3.45 pounds 1.74 pounds not specified
Color black black not specified Black White black not specified not specified Black Black Black White White White not specified
Model 14159 14167 14174 14186 35436 1011662 1011659 15379 14437 14377 14439 13445 10227 10225 13892

How to Choose Liquid Cooling Components

  1. Match Fan Mount Dimensions

    Check your chassis fan mount specifications before choosing a radiator size. Most PC cases accommodate standard 120mm multiples like 240mm or 360mm, but some chassis feature dedicated mounts for large single fans. If your case uses non-standard brackets, verify the exact frame measurements. Choosing a specialized model like the Alphacool NexXxoS XT45 200mm Copper Radiator gives you a single large fan profile. Ensure the length and width match the mounting points on your case panel.

  2. Choose Port Routing Layouts

    Determine the tube path between components before you select a radiator layout. Standard U-flow radiators place inlet and outlet ports on the same end cap, which suits loops where tubes return to the same case compartment. Cross-flow designs place ports on opposite ends, allowing coolant to enter on one side and exit across the frame. Selecting the Alphacool NexXxoS XT45 X-Flow 360mm Radiator simplifies straight tubing runs from one end of your chassis to the other.

  3. Count Available Connection Ports

    Inspect the total number of G1/4-inch threaded ports provided on the radiator body. Basic models offer only two ports for coolant entry and exit. Units with extra connections give you alternate angles for fitting installation, loop bleeding, and dedicated drain valves without adding separate splitters. The Alphacool NexXxoS HPE-30 360mm Copper Radiator provides five G1/4-inch connections, which gives you multiple routing configurations and easier maintenance access when filling or draining your loop in confined enclosures.

  4. Verify Pump Mechanism Compatibility

    When you select a standalone reservoir, verify which specific liquid cooling pump motor standard it accepts. Some housings feature integrated pump tops designed exclusively for D5 pumps, while others require separate standalone pumps connected via tubing. The Alphacool Eisbecher Aurora 250mm Acetal Reservoir specifies D5 pump compatibility, meaning you must mount a D5 pump directly to the base. Confirm your pump model matches the reservoir mounting interface before completing your liquid cooling loop assembly.

  5. Check Motherboard Socket Support

    Ensure your standalone CPU water block matches your motherboard processor socket. Water blocks use dedicated mounting brackets and backplates engineered for specific CPU retention mechanisms. If you run a contemporary platform, confirm support for modern Intel or AMD sockets in the hardware specs. The Alphacool Core 1 CPU Water Block is designed for LGA 1700 and AM5 custom loop builds. Installing an incompatible block prevents proper mounting tension and risks damage to the CPU IHS.

  6. Assess Internal Channel Density

    Examine the internal channel count when evaluating heat transfer specifications. High-performance editions feature more water channels within the same core dimensions, increasing the total surface contact area between the liquid coolant and the copper fins. For instance, the Alphacool NexXxoS HPE-45 240mm Radiator incorporates 24 cooling channels across its copper structure. Check this spec if you need maximum heat transfer capacity within a shorter radiator length, ensuring your pump delivers sufficient flow through the core.

Frequently asked questions

Are these Alphacool coolers all-in-one units or custom loop components?

These listed Alphacool models are standalone custom liquid cooling parts rather than closed-loop all-in-one systems. Components like the Alphacool Core 1 CPU Water Block require you to provide a separate pump, tubing, and radiator. Radiators like the NexXxoS ST30 and UT60 connect into open loops using standard fittings. This modular design lets you service, expand, or customize each individual part of your cooling setup.

What is the difference between standard and X-Flow Alphacool radiators?

X-Flow models route coolant straight across the radiator from one end to the other, while standard models place ports at the same end. The Alphacool NexXxoS XT45 X-Flow 360mm and ST30 X-Flow 480mm use this opposite-end design to streamline tubing runs across long chassis spans. Standard models use channels that reverse fluid direction inside the end tank, requiring both inlet and outlet lines at one side.

Which CPU sockets are compatible with the Alphacool Core 1?

The Alphacool Core 1 CPU Water Block is designed for Intel LGA 1700 and AMD AM5 processor sockets. This standalone cooling block fits modern desktop platforms without requiring extra mounting brackets beyond its supported socket hardware. You must integrate it into a complete loop with an external pump and radiator to circulate liquid across its contact plate, as it contains no internal motor.

What pump does the Alphacool Eisbecher Aurora 250mm reservoir use?

The Alphacool Eisbecher Aurora 250mm reservoir is designed specifically for D5 pumps. Its acetal and glass body functions as a dedicated housing that mounts directly to a standalone D5 pump unit. The assembly also includes integrated D-RGB lighting for your chassis. You must supply the D5 pump motor separately, as the reservoir itself does not include an active pumping mechanism.

What is the benefit of full copper construction in Alphacool radiators?

Full copper construction eliminates mixed-metal galvanic corrosion when you pair radiators with copper water blocks. Radiators such as the Alphacool NexXxoS ST30, XT45, and UT60 use pure copper across their cooling fins and internal channels. This ensures thermal conductivity remains high while keeping your coolant loop chemically stable. Copper parts should not be mixed with aluminum components unless you use specialized corrosion inhibitors.

How many ports do Alphacool multi-port radiators provide?

Models like the Alphacool NexXxos XT45 480mm and UT60 360mm feature six connection ports across their end tanks. In addition, the Alphacool NexXxoS HPE-30 360mm features five G1/4-inch ports. Having multiple access ports gives you dedicated locations for inlet and outlet lines, drain valves, air bleeders, and temperature sensors. This flexibility simplifies loop maintenance and tube routing compared to standard dual-port configurations.

How do HPE series radiators differ from standard Alphacool NexXxoS models?

Alphacool HPE radiators feature an increased internal channel count for denser coolant flow. For example, the NexXxoS HPE-45 240mm incorporates 24 cooling channels within its copper core. Models like the HPE-30 and HPE-45 maximize internal liquid contact area within standard 30mm and 45mm frame profiles. This design increases thermal dissipation potential compared to earlier designs with fewer internal channels.

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