6 Best Water Cooling Parts with Single Fan, Compared
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You need reliable best water cooling parts with single fan for your build. We compared 6 options using only the specifications published on the listings. The Alphacool NexXxoS XT45 120mm Copper Radiator leads because it offers six connection points in a compact 46mm profile. This flexibility suits compact builds needing multiple connection points. Other picks include thicker copper models for maximum heat dissipation and thinner steel or copper options for tight spaces. This guide helps you decide which radiator fits your case dimensions and cooling needs.
Quick picks
The best fit for you
- You need maximum connection points in a compact build Alphacool NexXxoS XT45 120mm Copper Radiator Its 46mm height and six ports offer flexibility in tight spaces.
- You have spacious case room and need peak cooling Alphacool NexXxos UT60 120mm Copper Radiator Its 60mm thickness and 1.76-pound weight provide maximum thermal mass.
- You prioritize a small footprint over raw capacity Alphacool NexXxos ST30 120mm Copper Radiator Its compact 1.18-inch height suits builders with limited space.
- You require a thin copper core for tight spaces Alphacool NexXxos ST30 X-Flow 120mm Radiator Its 1.18-inch height fits small cases with strict height limits.
Our 6 picks
Alphacool NexXxoS XT45 120mm Copper Radiator
Best for: Compact builds needing multiple connection points
- Fan Mount
- Single Fan (what this guide is about)
- Radiator Size
- 120mm
- Material
- Copper
- Thread Size
- G1/4
- Dimensions
- 4.88 × 6.18 × 1.81 inches
- Weight
- 1.32 pounds
View on Amazon: Alphacool NexXxoS XT45 120mm Copper Radiator Affiliate link
The Alphacool NexXxos XT45 is a 120mm single-fan radiator designed for compact liquid cooling loops. It features a full copper core with steel side panels for durability. The unit includes six G1/4" ports, giving you flexibility for tubing connections. At 46mm thick, it fits in standard 120mm fan mounts. This build suits users who need reliable heat dissipation in tight cases without sacrificing port options.
Pros
- Full copper core and fins for efficient heat transfer
- Six G1/4" ports for versatile tubing routing
- Steel side panels protect the copper core
- Compact 46mm thickness fits standard 120mm mounts
Cons
- Steel side panels add weight compared to all-copper builds
- Thinner 46mm profile holds less coolant than thicker radiators
- No included fan, requiring separate purchase
Good fit if
- You need multiple connection points in a small space
- You prefer a durable steel exterior for protection
- You are building a loop with tight clearance constraints
Skip if
- You want an all-copper construction for maximum thermal mass
- You need a thicker radiator for higher heat loads
- You prefer a radiator with an included fan
Verdict: Alphacool NexXxos XT45 120mm Single Fan is a practical choice for builders who prioritize connection flexibility and compact size over raw thermal mass. It fits users who need six ports in a 46mm profile.
Alphacool NexXxos UT60 120mm Copper Radiator
Best for: maximum cooling capacity in spacious builds
- Fan Mount
- Single Fan (what this guide is about)
- Radiator Size
- 120mm
- Material
- Copper
- Thread Size
- G1/4
- Dimensions
- 4.72 × 4.72 × 2.76 inches
- Weight
- 1.76 pounds
View on Amazon: Alphacool NexXxos UT60 120mm Copper Radiator Affiliate link
This is a 120mm single-fan radiator designed for high-performance cooling. It features a full copper construction with copper chambers, fins, and channels, paired with steel side panels. The unit includes six G1/4-inch ports for flexible tubing connections. Weighing 1.76 pounds, it offers a substantial thermal mass. This model suits builders who prioritize maximum heat dissipation through dense copper cores over lightweight or slim profiles.
Pros
- Full copper construction including chambers, fins, and channels
- Six G1/4-inch connection ports for flexible plumbing
- Steel side panels for structural durability
- Substantial 1.76-pound weight indicates high thermal mass
Cons
- 60mm thickness is bulkier than the 25mm and 30mm alternatives on this list
- Heavier build at 1.76 pounds compared to thinner models
- Steel side panels add weight without contributing to copper surface area
Good fit if
- You need maximum cooling capacity from a single 120mm fan
- You have ample space for a 60mm thick radiator
- You prefer the thermal performance of full copper cores
Skip if
- You require a slim 25mm or 30mm profile for tight cases
- You are building a lightweight system and want to minimize weight
- You prioritize minimal radiator depth over raw cooling potential
Verdict: Alphacool NexXxos UT60 120mm Copper Radiator is the heaviest and thickest option here, making it the best fit for enthusiasts who need maximum heat dissipation and have the case space to accommodate its 60mm depth.
Alphacool NexXxos ST30 120mm Copper Radiator
Best for: Compact cases with single fan mounts
- Fan Mount
- Single Fan (what this guide is about)
- Radiator Size
- 120mm
- Material
- Copper, brass, stainless steel
- Thread Size
- G1/4
- Dimensions
- 6.18 × 4.88 × 1.18 inches
- Weight
- 0.47 kilograms
View on Amazon: Alphacool NexXxos ST30 120mm Copper Radiator Affiliate link
This 120mm single fan radiator uses a full copper core with steel side panels. It measures 157 by 124 by 30mm and weighs 469g. The unit includes two G1/4" ports for your tubing connections. You get a compact cooling solution that fits standard 120mm fan mounts. The black finish suits most builds. It offers a balance of size and material quality for tight spaces.
Pros
- Full copper core and fins for efficient heat transfer
- Compact 30mm thickness fits tight cases
- Two G1/4" ports for easy tubing connection
- Durable steel side panels protect the core
Cons
- Smaller core thickness than thicker alternatives
- Steel side panels add weight without improving cooling
- Single fan configuration limits total airflow
Good fit if
- You need a 120mm radiator for a compact case
- You prefer full copper construction for durability
- You want a single fan mounting option
Skip if
- You require maximum cooling performance from a single fan
- You need a thicker core for higher heat dissipation
- You prefer aluminum cores for lighter weight
Verdict: Alphacool NexXxos ST30 120mm Single Fan is a compact copper radiator for builders with limited space. It suits you if you prioritize a small footprint over maximum thermal capacity.
Alphacool NexXxos XT45 120mm X-Flow Radiator
Best for: Compact builds needing copper performance
- Radiator Size
- 120mm
- Material
- Copper
- Thread Size
- G1/4
- Dimensions
- 4.88 × 6.77 × 1.77 inches
- Weight
- 1.15 pounds
View on Amazon: Alphacool NexXxos XT45 120mm X-Flow Radiator Affiliate link
This 120mm single-fan radiator uses a full copper core with steel side panels for durability. It measures 172 x 124 x 45mm and weighs 522g. You get six G1/4" threaded ports for flexible tubing connections. The black finish matches standard builds. It suits you if you need a compact, high-quality cooling solution for tight spaces.
Pros
- Full copper core for efficient heat transfer
- Six G1/4" threaded ports for versatile plumbing
- Compact 45mm thickness fits tight cases
- Steel side panels add structural durability
Cons
- Heavier than aluminum alternatives at 522g
- Limited to single-fan mounting configuration
- No included fan with the radiator unit
Good fit if
- You need a compact 120mm radiator
- You prefer copper cores for performance
- You require multiple connection ports
Skip if
- You need a multi-fan setup
- You prefer lightweight aluminum construction
- You want an all-in-one unit
Verdict: Alphacool NexXxos XT45 120mm Copper Radiator is a solid choice for builders needing a compact, high-performance copper core with ample connection options. It fits well in small form factor cases where space is limited.
Alphacool NexXxos ST30 X-Flow 120mm Radiator
Best for: Small cases with strict height limits
- Radiator Size
- 120mm
- Material
- Copper
- Thread Size
- G1/4
- Dimensions
- 4.88 × 6.77 × 1.18 inches
- Weight
- 12.4 ounces
View on Amazon: Alphacool NexXxos ST30 X-Flow 120mm Radiator Affiliate link
The Alphacool NexXxos ST30 is a 120mm single-fan radiator built for tight spaces. It measures 172 x 124 x 30mm, making it one of the thinnest options available. The core features copper chambers and fins with steel side panels. You get four G1/4" threaded ports for flexible tubing connections. This compact design suits builds where standard thickness radiators will not fit.
Pros
- Ultra-slim 30mm thickness
- Copper core and fins
- Four G1/4" ports
- Steel side panels
Cons
- Steel side panels reduce total copper surface area
- Single fan limits airflow potential
- Thinner core may struggle with high heat loads
Good fit if
- You need a radiator under 30mm thick
- You are building a small form factor case
- You require multiple connection points
Skip if
- You need maximum cooling performance
- You prefer all-copper construction
- You have space for thicker radiators
Verdict: Alphacool NexXxos ST30 Single Fan 120mm Radiator fits small cases where thickness is the main constraint. You should choose this if your build requires a 30mm profile and you can accept steel side panels.
Alphacool NexXxoS ST25 Copper 120mm Radiator
Best for: compact builds requiring thin copper radiators
- Radiator Size
- 120mm
- Material
- Copper
- Thread Size
- G1/4
- Dimensions
- 3.15 × 3.15 × 3.94 inches
View on Amazon: Alphacool NexXxoS ST25 Copper 120mm Radiator Affiliate link
The Alphacool NexXxos ST25 is a 120mm single-fan radiator built with solid copper for high thermal performance. It features 15 fins per inch and two G1/4" connections for tubing. At 25.5 mm thick, it is the thinnest option in this comparison. This design suits you if you need compact cooling in tight cases or small form factor builds.
Pros
- Solid copper construction for optimal heat dissipation
- Compact 25.5 mm thickness fits tight spaces
- Includes two G1/4" connections for easy plumbing
- 15 fins per inch for dense heat exchange
Cons
- Thinner 25.5 mm profile holds less coolant than 30 mm or 45 mm alternatives
- Single fan configuration limits total airflow compared to dual-fan setups
- Limited surface area restricts cooling capacity for high-end components
Good fit if
- You are building in a case with strict height restrictions
- You need a compact radiator for a small form factor PC
- You prioritize copper construction for maximum thermal efficiency
Skip if
- You require the highest possible heat dissipation for overclocked CPUs
- You prefer thicker radiators for better thermal mass
- You need dual-fan airflow for larger heat loads
Verdict: Alphacool NexXxos ST25 120mm Single Fan Radiator fits users who need a compact, high-performance copper radiator for tight spaces. It is the right choice for small form factor builds where thickness matters more than raw cooling capacity.
Specifications side by side
| Spec | Alphacool NexXxoS XT45 120mm Copper Radiator | Alphacool NexXxos UT60 120mm Copper Radiator | Alphacool NexXxos ST30 120mm Copper Radiator | Alphacool NexXxos XT45 120mm X-Flow Radiator | Alphacool NexXxos ST30 X-Flow 120mm Radiator | Alphacool NexXxoS ST25 Copper 120mm Radiator |
|---|---|---|---|---|---|---|
| Radiator Size | 120mm | 120mm | 120mm | 120mm | 120mm | 120mm |
| Material | Copper | Copper | Copper, brass, stainless steel | Copper | Copper | Copper |
| Thread Size | G1/4 | G1/4 | G1/4 | G1/4 | G1/4 | G1/4 |
| Fan Mount | Single Fan | Single Fan | Single Fan | not stated | not stated | not stated |
| Size | 120Mm | 120Mm | 120Mm | 120Mm | 120Mm | 120Mm |
| Dimensions | 4.88 × 6.18 × 1.81 inches | 4.72 × 4.72 × 2.76 inches | 6.18 × 4.88 × 1.18 inches | 4.88 × 6.77 × 1.77 inches | 4.88 × 6.77 × 1.18 inches | 3.15 × 3.15 × 3.94 inches |
| Weight | 1.32 pounds | 1.76 pounds | 0.47 kilograms | 1.15 pounds | 12.4 ounces | not stated |
| Color | Black | Black | Black | Black | Black | Black |
| Model | 14163 | 14172 | 14156 | 14232 | 1011656 | 14352 |
How to Choose the Right Single Fan Radiator
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Check Case Thickness Limits
Your case determines the maximum radiator depth you can install. The Alphacool NexXxoS ST30 X-Flow stands at just 30mm, fitting into tight spaces where other models fail. In contrast, the NexXxoS UT60 reaches 60mm, requiring deep clearance. Measure the available slot in your chassis before buying. If you have limited room, a thinner unit is essential. Choosing a radiator that does not fit causes installation headaches and may require case modification. Always verify the physical dimensions against your case specifications.
-
Evaluate Connection Flexibility
The number of ports affects how easily you can route tubing. The NexXxoS XT45 offers six connection points, providing significant flexibility for custom loops. This is useful if you need multiple entry or exit points for your tubing. Other models may have fewer ports, limiting your routing options. Consider your tubing length and path when selecting a radiator. More ports allow for cleaner builds with shorter tube runs. If you are building a complex loop, prioritize models with higher port counts for easier assembly and maintenance.
-
Compare Core Materials
Most options here use copper cores for superior heat dissipation. Copper conducts heat better than aluminum in many scenarios. The NexXxoS ST30 X-Flow features steel side panels, which may affect durability or aesthetics. Check the material composition if you plan to use specific coolants. Some coolants are incompatible with aluminum or steel. Copper generally offers better thermal performance but can be heavier. Verify that your chosen coolant is safe for the radiator material to prevent corrosion and maintain system longevity over time.
-
Assess Weight and Stability
Heavier radiators require more robust mounting support. The NexXxoS UT60 weighs 1.76 pounds, which is substantial for a 120mm unit. Ensure your case or bracket can support this weight without sagging. Lighter options like the ST30 weigh significantly less, reducing stress on mounting points. Consider the total weight of your cooling loop. Heavy components can strain case mounts over time. Verify that your case has adequate support for the heaviest radiator you consider. Stability ensures long-term reliability and prevents vibration or damage.
-
Match Size to Build Space
All listed models are 120mm fans, but their overall dimensions vary. The NexXxoS XT45 measures 4.88 inches in length, while the UT60 is 4.72 inches. Width also varies, with some models being wider than others. Check your case's internal width and length constraints. A radiator that is too wide may block other components like RAM or cables. Ensure the physical footprint matches your available space. Proper sizing prevents conflicts with surrounding hardware and ensures a clean, functional build layout.
Frequently asked questions
Which single fan radiator has the most connection ports?
The Alphacool NexXxoS XT45 120mm Copper Radiator offers six connection points. This high port count provides flexibility for tubing routing in compact builds. It maintains a slim 46mm profile, making it suitable for small form factor cases that require multiple liquid cooling lines.
What is the thickest single fan radiator in this list?
The Alphacool NexXxoS UT60 120mm Copper Radiator is the thickest option at 60mm. Its substantial 2.76-inch height and 1.76-pound weight maximize thermal mass. This design suits enthusiasts with spacious cases who prioritize maximum heat dissipation over compact size.
Which radiator is best for very tight case spaces?
The Alphacool NexXxoS ST30 120mm Copper Radiator is ideal for tight spaces. It features a slim 30mm profile, measuring just 1.18 inches in height. This compact footprint allows installation in cases with strict clearance limits, though it offers less surface area than thicker models.
Do these radiators use copper cores?
Yes, all listed radiators use copper cores for heat transfer. Copper provides superior thermal conductivity compared to aluminum. This material choice ensures efficient heat removal from the coolant, which is critical for maintaining low temperatures in single-fan configurations with limited surface area.
How heavy is the heaviest single fan radiator?
The Alphacool NexXxoS UT60 120mm Copper Radiator weighs 1.76 pounds. This weight results from its thick 60mm core and copper construction. You must ensure your case mounting points can support this mass, especially if the radiator is mounted vertically or overhead.
What size fan do these radiators support?
All listed models are designed for 120mm fans. The mounting holes align with standard 120mm fan patterns. This uniformity allows you to use common, widely available fans. You can choose fans based on noise levels and airflow needs without worrying about compatibility issues.