Quad Fan vs Dual Fan Water Cooling Parts: Which Should You Buy?
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Choosing between a quad fan vs dual fan water cooling part depends on your case size and cooling needs. Both options here come from Alphacool’s NexXxos line and feature full copper construction for efficient heat dissipation. The main difference lies in their physical footprint. One unit supports four fans for maximum surface area, while the other accommodates two fans for tighter spaces. You need to weigh these dimensions against your specific build requirements.
Key differences
| Aspect | Alphacool NexXxoS ST30 480mm Full Copper Radiator | Alphacool NexXxos 240mm Full Copper Radiator |
|---|---|---|
| Radiator Size | 480mm | 240mm |
| Fan Mount | Quad Fan | Dual Fan |
| G1/4" Ports | 2 | 6 |
| Weight | 1,226g | 1,199g |
Which one should you choose?
Choose Alphacool NexXxoS ST30 480mm Full Copper Radiator if
- You have a large case that can fit a 480mm radiator.
- You need the maximum possible cooling surface area.
- You prefer a single unit that mounts four fans.
Choose Alphacool NexXxos 240mm Full Copper Radiator if
- You are working with a compact or mid-size case.
- You need more G1/4" port options for complex tubing runs.
- You want a lighter component that takes up less space.
Verdict: The 480mm quad fan radiator offers superior cooling potential due to its larger surface area. The 240mm dual fan option is better suited for smaller builds and offers more connection ports. Choose based on your available case space and port requirements.
Quad vs Dual Fan Radiator Comparison
Radiator Size
The Alphacool NexXxos ST30 measures 480mm in length, designed to hold four 120mm fans. This large surface area provides more fin density for heat exchange. The Alphacool NexXxos XT45 is a 240mm radiator, fitting two 120mm fans. It is half the length of the ST30. You need more internal space for the quad fan model. The dual fan version fits in smaller cases easily. Choose the 480mm if you prioritize maximum cooling potential. Pick the 240mm if case compatibility is your main constraint.
Dimensions
The ST30 is 552mm long, 124mm high, and 30mm thick. The XT45 is 280mm long, 124mm high, and 46mm thick. Both share the same height, which helps with clearance above CPU sockets. The ST30 is thinner, allowing it to fit in tighter spaces vertically. The XT45 is thicker, which can sometimes improve airflow through the fins. The length difference is the most significant factor for your case layout. You must measure your available mounting space carefully before deciding.
Port Count
The ST30 includes two G1/4" ports for tubing connections. The XT45 features six G1/4" ports. More ports allow for more complex loop configurations or easier tubing routing. You can place fittings on different sides of the XT45 for better cable management. The ST30 limits your tubing entry points to two locations. If you are building a custom loop with multiple components, the extra ports on the dual fan radiator offer more flexibility in design.
Weight
The ST30 weighs 1,226 grams or 1.76 pounds. The XT45 weighs 1,199 grams or 1.32 pounds. The quad fan radiator is slightly heavier due to its larger copper core and steel panels. This extra weight requires sturdy case mounting points to prevent sagging. The dual fan unit is lighter and easier to handle during installation. Both are heavy for plastic components, but the difference is minimal. Ensure your case brackets can support the heavier ST30 model securely.
Material Construction
Both radiators use full copper chambers, fins, and channels for optimal heat transfer. They both have steel side panels and brass threads for durability. The ST30 has a black exterior color. The XT45 also features a black exterior color. The construction quality is identical in terms of materials used. You get the same efficient copper core in both sizes. The difference lies only in the amount of copper used. The larger ST30 contains more copper material than the smaller XT45.
Quad or Dual Fan Radiator Pick
Users with large cases seeking max cooling
The 480mm ST30 radiator offers a larger surface area for heat exchange. Its full copper construction with copper fins and chambers ensures efficient thermal dissipation. The four-fan mount supports higher airflow capacity, making it ideal for demanding builds where space allows for a larger footprint.
Owners of compact mid-tower cases
The 240mm XT45 radiator fits smaller chassis with ease. It holds two 120mm fans and maintains full copper internals for reliable performance. Its compact dimensions suit users who need effective cooling without requiring the extensive clearance that a quad-fan setup demands in tighter enclosures.
Builds prioritizing port connection flexibility
The XT45 model includes six G1/4" ports, offering more options for tubing or sensor connections. This flexibility benefits users who plan to add extra components or custom loops. The dual-fan size remains efficient while providing greater connectivity options compared to the dual-port ST30.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Alphacool NexXxoS ST30 480mm Full Copper Radiator | Large cases requiring maximum cooling capacity | Check price of Alphacool NexXxoS ST30 480mm Full Copper Radiator on Amazon |
| 2 | Alphacool NexXxos 240mm Full Copper Radiator | compact dual fan builds with copper cores | Check price of Alphacool NexXxos 240mm Full Copper Radiator on Amazon |
The products compared
Alphacool NexXxoS ST30 480mm Full Copper Radiator
Best for: Large cases requiring maximum cooling capacity
- Fan Mount
- Quad Fan (what this guide is about)
- Radiator Size
- 480mm
- Material
- Copper
- Thread Size
- G1/4
- 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 full copper radiator designed for quad fan mounts. It measures 480mm in length with a 30mm thickness. The build uses copper chambers, fins, and channels with steel side panels. It includes two G1/4-inch ports. You should choose this if you need maximum surface area for heat dissipation in a large case.
Pros
- Full copper construction for chambers, fins, and channels
- 480mm length accommodates four 120mm fans
- Two G1/4-inch threaded ports
- Steel side panels protect internal components
Cons
- Heavier at 1.226kg due to solid copper build
- 30mm thickness requires more case depth
- Black exterior limits aesthetic matching options
Good fit if
- You have a case with room for a 480mm radiator
- You prioritize cooling performance over weight
- You need dual G1/4-inch fittings
Skip if
- You are limited to dual fan mounts
- You need a slim 25mm or thinner profile
- You want a lighter radiator for small form factor builds
Verdict: Alphacool NexXxos ST30 480mm Quad Fan Radiator delivers robust heat dissipation for high-end builds. It fits users with spacious cases who require maximum cooling capacity from a full copper design.
Alphacool NexXxos 240mm Full Copper Radiator
Best for: compact dual fan builds with copper cores
- Radiator Size
- 240mm
- Material
- Copper
- Thread Size
- G1/4
- Dimensions
- 4.88 × 11 × 1.81 inches
- Weight
- 1.32 pounds
View on Amazon: Alphacool NexXxos 240mm Full Copper Radiator Affiliate link
This is a 240mm dual fan radiator with a black finish. It features a full copper core with steel side panels and six G1/4 inch ports. The unit measures 280 by 124 by 46 mm and weighs 1.32 pounds. It suits builds requiring a compact dual fan cooling solution with high-quality copper construction.
Pros
- Full copper core with copper fins and channels
- Six G1/4 inch ports for flexible tubing
- Compact 240mm size fits most cases
- Steel side panels for durability
Cons
- Smaller 240mm size limits cooling capacity
- Heavier build at 1.32 pounds
- Black finish may not match all builds
Good fit if
- You need a compact dual fan radiator
- You prefer full copper core construction
- You want multiple G1/4 inch ports
Skip if
- You require quad fan mounting options
- You need a larger 480mm radiator
- You prefer a lighter weight unit
Verdict: Alphacool NexXxos XT45 240mm Dual Fan is a solid choice for users who need a compact, high-quality copper radiator with ample port options for dual fan setups.
Specifications side by side
| Spec | Alphacool NexXxoS ST30 480mm Full Copper Radiator | Alphacool NexXxos 240mm Full Copper Radiator |
|---|---|---|
| Radiator Size | 480mm | 240mm |
| Material | Copper | Copper |
| Thread Size | G1/4 | G1/4 |
| Fan Mount | Quad Fan | not stated |
| Size | 480mm | 240Mm |
| Dimensions | 21.7 × 4.88 × 1.18 inches | 4.88 × 11 × 1.81 inches |
| Weight | 1.76 pounds | 1.32 pounds |
| Color | black | black |
| Model | 14159 | 14164 |
Frequently asked questions
What is the size difference between a quad fan and dual fan radiator?
The quad fan Alphacool NexXxoS ST30 measures 480mm in length. It is designed to accommodate four 120mm fans for maximum heat dissipation. The dual fan NexXxos XT45 measures 240mm. This compact size fits two 120mm fans. You should choose the larger option if your case has ample space and you need higher cooling capacity for high-end builds.
Do both quad fan and dual fan options use copper construction?
Yes, both products feature full copper construction. The Alphacool NexXxoS ST30 uses a full copper core for efficient heat transfer. The NexXxos XT45 also utilizes a full copper design. This material choice ensures robust heat dissipation in both setups. You get high-quality thermal performance regardless of whether you select the four-fan or two-fan configuration for your system.
Which radiator is better for compact dual fan builds?
The Alphacool NexXxos XT45 is the better choice for compact dual fan builds. It measures 240mm and fits two 120mm fans. Its compact design suits users who need a smaller footprint without sacrificing quality. The full copper core provides ample port options for dual fan setups. It delivers solid performance in tighter spaces where a larger radiator would not fit.
What are the physical dimensions of the quad fan radiator?
The Alphacool NexXxoS ST30 measures 21.7 inches in length. It has a width of 4.88 inches and a height of 1.18 inches. The unit weighs 1.76 pounds. These dimensions are designed for large cases requiring maximum cooling capacity. The four-fan mount supports higher airflow across the extensive surface area. Ensure your case can accommodate this larger footprint before purchasing.
Is the dual fan radiator heavy compared to the quad fan?
The dual fan NexXxos XT45 weighs 1.32 pounds. The quad fan ST30 weighs 1.76 pounds. The dual fan option is lighter due to its smaller size and reduced material usage. This makes it easier to mount in compact cases. Both units are constructed from copper, but the smaller footprint results in a lower overall weight for the two-fan configuration.
Can I use the quad fan radiator in a small case?
The quad fan ST30 measures 480mm in length. It is designed for large cases requiring maximum cooling capacity. It likely will not fit in a small case. You should verify your case compatibility before buying. The larger size supports four fans and provides more fin density for heat exchange. If you have limited space, the 240mm dual fan option is a more suitable alternative.
What color options are available for these Alphacool radiators?
Both the quad fan ST30 and the dual fan XT45 are available in black. The specifications list the color as black for both models. This standard finish matches most cooling components and case interiors. You do not need to worry about color mismatching if you are building a dark-themed system. The full copper construction is hidden beneath this black exterior finish.

