Looking Beyond the Alphacool NexXxoS XT45 X-Flow 360mm? 6 Alternatives Worth a Look

How each alternative compares

Alphacool NexXxoS XT45 360mm Copper Radiator

This model keeps the 360mm copper core but increases thickness to 2.36 inches and length to 18.5 inches. You gain more surface area for heat dissipation, which helps in standard ATX cases with ample depth. However, you sacrifice the slim profile that defines the XT45 X-Flow. The weight drops to 1.52 kilograms, making it lighter than the original. This is a practical choice if you prioritize cooling capacity over compact form factors. It suits builders who do not need to fit the radiator into tight spaces. The straightforward copper construction remains consistent, but the larger footprint requires checking case compatibility before purchase.

Alphacool NexXxos UT60 360mm Copper Radiator

The UT60 series shifts to a standard thickness of 2.36 inches while maintaining a 360mm length. This design offers a black aesthetic that differs from the original's specific finish. You get a robust copper core suitable for triple fan setups. The weight increases slightly to 1.76 pounds, providing more thermal mass than the slim XT45. This alternative is ideal for users who prefer a standard radiator profile without the constraints of a slim design. It delivers reliable cooling performance for systems that do not require ultra-compact solutions. The trade-off is the increased depth, which may not fit in smaller cases. It is a solid option for traditional ATX builds.

Alphacool NexXxos UT60 360mm White Radiator

This variant features a white finish and a thicker profile of 2.76 inches. It is designed for white-themed custom loops where aesthetics play a significant role. The copper core remains, ensuring good thermal conductivity, but the added thickness and white coating increase the weight to 3.87 pounds. You gain a distinctive look that contrasts with the original black slim design. This radiator is best for builders who prioritize visual harmony in their build over space efficiency. The larger size requires more room within the case. It offers a premium appearance but sacrifices the compactness that makes the XT45 X-Flow suitable for tight spaces. Consider this if your case can accommodate the extra depth.

Alphacool NexXxoS ST20 HPE Copper 360mm Radiator

The ST20 HPE model focuses on pure copper construction for 360mm cooling needs. It maintains a black color scheme similar to the original but emphasizes high-performance efficiency. This radiator is suitable for builders who value thermal conductivity above all else. It lacks digital features, keeping the design simple and functional. The 360mm size allows it to fit standard triple fan mounts. You get reliable heat dissipation without the need for complex components. This option is ideal for systems where maximum cooling performance is required. It may not offer the same slim profile as the XT45 X-Flow, but it provides a robust copper core. Choose this if you prioritize performance over compact dimensions.

Alphacool NexXxoS HPE-30 360mm Copper Radiator

The HPE-30 model offers a 12-channel full copper design for enhanced thermal performance. It is a 360mm radiator with a black finish, suitable for custom loops that prioritize copper thermal mass. This unit is heavier and larger than the original, with dimensions that suggest a focus on capacity rather than slimness. You get integrated plumbing ports, which can simplify installation for custom builds. The robust construction ensures effective heat dissipation. This alternative is best for users who need maximum cooling capacity and do not mind the increased size. It is not suitable for compact cases due to its bulk. Consider this if your build requires high thermal performance and has the space to accommodate a larger radiator.

Alphacool NexXxoS ST30 480mm Full Copper Radiator

The ST30 480mm model increases the size to 480mm, supporting quad fan configurations. This provides a significantly larger cooling surface area compared to the 360mm original. The thickness is reduced to 1.18 inches, making it thinner than the XT45 X-Flow despite its longer length. The weight is 1.76 pounds, which is lighter than the original. This radiator is ideal for high-end builds that require maximum cooling capacity. You gain substantial heat dissipation potential but lose the compact 360mm footprint. It is best suited for cases that can accommodate a 480mm radiator. Choose this if your priority is extreme cooling performance and you have the space for a larger unit.

Quick picks

Our 7 picks

1 Best overall

Alphacool NexXxoS XT45 X-Flow 360mm Radiator

Best for: Slim 360mm copper cooling builds

Radiator Size

360mm

Material

Copper

Thread Size

G1/4

Dimensions

4.88 × 16.3 × 1.77 inches

Weight

2.39 pounds

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

This 360mm copper radiator measures 16.3 inches wide and 1.77 inches thick. It weighs 2.39 pounds and comes in black. The X-Flow design offers a standard thickness for most cases. You get a reliable heat exchanger built for 120mm fans. It suits builders who want a proven copper core without extra bulk. The compact profile fits well in standard mid-tower or full-tower chassis.

Pros

• Full copper construction for efficient heat transfer
• 360mm size supports three 120mm fans
• Slim 1.77-inch thickness fits most cases
• Weighs only 2.39 pounds for easy mounting

Cons

• Limited to 1.77-inch thickness, offering less surface area than thicker models
• Black finish only, no other color options listed
• No mention of anti-corrosion coating or specific flow rate data

Good fit if

• You need a standard 360mm radiator for a 3-fan setup
• You prefer a slim profile to fit in compact cases
• You want a pure copper core for durability

Skip if

• You require a thicker radiator for maximum cooling performance
• You need a white or other color variant
• You are building a 480mm or larger loop

Verdict: Alphacool NexXxoS XT45 360mm Copper Radiator fits builders who prioritize a slim, lightweight copper core for standard 3-fan configurations. It is a solid choice for cases with limited depth.

2 Best budget

Alphacool NexXxoS XT45 360mm Copper Radiator

Best for: Standard ATX cases with ample depth

Radiator Size

360mm

Material

Copper

Thread Size

G1/4

Dimensions

18.5 × 5.51 × 2.36 inches

Weight

1.52 kilograms

View on Amazon: Alphacool NexXxoS XT45 360mm Copper Radiator Affiliate link

The Alphacool NexXxoS XT45 is a 360mm full copper radiator designed for three 120mm fans. It features steel side panels with brass threads and copper internal components. The unit measures 400 x 124 x 46mm and weighs 1.515kg. It includes six G1/4" ports for flexible tubing connections. This model suits builders who prioritize traditional copper construction and reliable thermal performance over slim profiles.

Pros

• Full copper construction for chambers, fins, and channels
• Six G1/4" ports for versatile tubing routing
• Standard 360mm size fits triple 120mm fans
• Steel side panels provide structural rigidity

Cons

• 124mm height is bulkier than slim 20mm or 30mm alternatives
• 1.515kg weight is heavier than aluminum or composite radiators
• Lacks an integrated pump or fan controller

Good fit if

• You need a standard 360mm radiator with high thermal mass
• You prefer full copper construction for durability
• You have case space for a 124mm thick unit

Skip if

• You require a slim radiator under 30mm thickness
• You are building a compact ITX case with limited clearance
• You need an all-in-one pump and fan unit

Verdict: Alphacool NexXxoS XT45 360mm Copper Radiator is a robust choice for standard ATX cases where thickness is not a constraint. It delivers reliable cooling for users who value copper's thermal properties and straightforward installation.

3 Also great

Alphacool NexXxos UT60 360mm Copper Radiator

Best for: Black-themed builds needing standard thickness

Radiator Size

360mm

Material

Copper

Thread Size

G1/4

Dimensions

15.7 × 2.36 × 4.88 inches

Weight

1.76 pounds

View on Amazon: Alphacool NexXxos UT60 360mm Copper Radiator Affiliate link

The Alphacool NexXxos UT60 is a 360mm triple-fan radiator with a black exterior. It features a full copper core with steel side panels and G1/4" ports. The unit weighs 1.76 pounds and measures 15.7 x 4.88 x 2.36 inches. This build offers robust cooling potential for high-heat components. It suits users who prefer a dark aesthetic and reliable copper construction for their liquid cooling loop.

Pros

• Full copper core with copper fins and chambers
• Black exterior color for stealth builds
• Six G1/4" ports for flexible tubing routing
• Steel side panels for structural rigidity

Cons

• 2.36-inch thickness is bulkier than slim 20mm options
• Steel side panels may corrode if coolant is incompatible
• Heavier build at 1.76 pounds adds case load

Good fit if

• You want a black radiator to match dark components
• You need a standard 360mm triple-fan footprint
• You prefer full copper construction for heat dissipation

Skip if

• You require a slim 12mm or 20mm profile for tight cases
• You need aluminum construction to prevent galvanic corrosion
• You prioritize lightweight components for portable builds

Verdict: Alphacool NexXxos UT60 360mm Full Copper Radiator provides reliable cooling for users who prioritize a black aesthetic and standard thickness over slim profiles.

4 Also great

Alphacool NexXxos UT60 360mm White Radiator

Best for: White-themed custom loop builders

Radiator Size

360mm

Material

Copper, steel housing

Thread Size

G1/4

Fan Mount

Triple Fan

Dimensions

18.1 × 5.51 × 2.76 inches

Weight

3.87 pounds

View on Amazon: Alphacool NexXxos UT60 360mm White Radiator Affiliate link

The Alphacool NexXxos UT60 is a 360mm triple-fan radiator designed for custom loops. It features a white exterior with steel side panels and a copper core. The unit includes six G1/4-inch ports for flexible tubing connections. Weighing 1,756 grams, it offers a sturdy build for high-performance cooling. This model suits builders seeking a specific aesthetic for their white-themed water cooling setups.

Pros

• White exterior with steel side panels
• Copper core with brass threads
• Six G1/4-inch ports for connections
• 360mm triple-fan configuration

Cons

• Heavier at 1,756 grams than aluminum alternatives
• Steel side panels may limit some aesthetic preferences
• White color may show dirt more easily

Good fit if

• You are building a white-themed custom loop
• You need six G1/4-inch ports for complex tubing
• You prefer a copper core with steel accents

Skip if

• You require a black or dark-colored radiator
• You need a lighter weight for thin cases
• You prefer an aluminum core for corrosion resistance

Verdict: Alphacool NexXxos UT60 360mm White Radiator fits builders who want a white aesthetic with a copper core and multiple port options. It is a solid choice for white-themed custom loops but may not suit those needing lighter or darker components.

5 Also great

Alphacool NexXxoS ST20 HPE Copper 360mm Radiator

Best for: Pure copper 360mm cooling needs

Radiator Size

360mm

Material

Copper, brass, stainless steel

Thread Size

G1/4"

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

This is a 360mm full copper radiator from Alphacool. It uses pure copper for water-carrying parts and cooling fins. The design offers high thermal conductivity. It comes in a black finish. You get a triple-fan setup for heat dissipation. This unit suits builds needing strong heat rejection. It fits well in systems with high waste heat output. The construction focuses on material quality over extra features.

Pros

• Full copper construction for water parts and fins
• High thermal conductivity compared to other materials
• 360mm triple-fan size for broad compatibility
• Black finish for clean aesthetics

Cons

• Only available in black color
• Standard thickness without HPE variant data
• No software control or monitoring included

Good fit if

• You prioritize pure copper thermal performance
• You need a 360mm radiator size
• You want a simple passive cooling solution

Skip if

• You require white or silver color options
• You need smart monitoring or app control
• You prefer aluminum core construction

Verdict: Alphacool NexXxoS ST20 HPE 360mm Copper Radiator is a solid choice for builders who value pure copper conductivity. It delivers reliable heat dissipation for high-output systems without digital distractions.

6 Best premium

Alphacool NexXxoS HPE-30 360mm Copper Radiator

Best for: Custom loops prioritizing copper thermal mass

Radiator Size

360mm

Material

Copper

Thread Size

G1/4"

Dimensions

19.7 × 19.7 × 11 inches

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

The Alphacool NexXxoS HPE-30 is a 360mm full copper radiator designed for high-performance liquid cooling. It features 12 cooling channels and pure copper pre-chambers, fins, and channels to maximize heat dissipation. The unit includes four G1/4" connections and one fill/drain port for easy maintenance. Its 30mm thickness fits standard triple-fan mounts. You will appreciate this build if you prioritize material quality and straightforward plumbing options for your custom loop.

Pros

• Full copper construction for pre-chambers, fins, and channels
• 12 cooling channels for enhanced heat transfer
• Includes 4x G1/4" IN/OUT connections and 1x fill/drain port
• Standard 360mm size with 30mm thickness

Cons

• 30mm thickness is bulkier than 20mm or 25mm slim options
• Black finish may not match all system aesthetics
• No mention of included mounting hardware or fans

Good fit if

• You need a full copper radiator for maximum thermal performance
• You want convenient fill and drain ports built-in
• You have space for a 30mm thick radiator

Skip if

• You require a slim 20mm or 25mm profile for tight cases
• You prefer white or other colors to match your build
• You need a complete kit with fans included

Verdict: Alphacool NexXxoS HPE-30 360mm Copper Radiator offers robust thermal performance through its 12-channel full copper design. It suits builders who value pure copper construction and integrated plumbing ports over slim profiles.

7 Best quad fan

Alphacool NexXxoS ST30 480mm Full Copper Radiator

Best for: High-end builds needing maximum cooling surface area

Radiator Size

480mm

Material

Copper

Thread Size

G1/4

Fan Mount

Quad Fan

Dimensions

21.7 × 4.88 × 1.18 inches

Weight

1.76 pounds

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

This Alphacool NexXxos ST30 is a 480mm full copper radiator designed for quad fan setups. It measures 552 x 124 x 30mm and weighs 1,226g. The unit features G1/4" ports, brass threads, and copper chambers with copper fins. You should consider this if you need a large surface area for heat dissipation in a single block. It is built for users who prioritize copper construction and maximum fan count over compact dimensions.

Pros

• Full copper construction with copper chambers and fins
• Supports four 120mm fans for maximum surface area
• Includes two G1/4" ports for tubing connections

Cons

• Thicker 124mm depth may interfere with CPU cooler clearance
• Heavier at 1,226g compared to standard triple fan radiators
• Larger 480mm length requires a case with specific mounting support

Good fit if

• You need a 480mm radiator for extreme cooling capacity
• You prefer full copper internals for durability and heat transfer
• You have a case that supports quad fan mounting

Skip if

• You require a slim 25mm or 30mm profile radiator
• Your case only supports up to 360mm radiators
• You are building a compact ITX system with limited space

Verdict: Alphacool NexXxos ST30 480mm Quad Fan Radiator suits builders who need maximum cooling surface area and can accommodate its larger size and weight. It is a robust option for high-end air-cooled or liquid-cooled builds where space allows.

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