Alphacool NexXxoS XT45 1260mm Copper Review: Specs, Pros and Cons
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This alphacool nexxxos xt45 1260mm copper review focuses on a radiator built for high heat rejection. It is a 1260mm unit made entirely of copper. The design supports nine 140mm fans on the front. It measures 17.4 inches in length and 1.89 inches in height. These dimensions define its footprint in your case. The full copper construction suggests strong thermal performance. You get three G1/4" threads for tubing connections. The fins are spaced at 12 per inch. This density balances airflow and cooling efficiency. It is a substantial component for custom loops.
What stands out
- Full copper construction for durable heat dissipation
- 1260mm length accommodates nine 140mm fans
- 12 fins per inch for balanced airflow
- Three G1/4" threaded ports for easy connection
Who it fits
Good fit for
This radiator suits builders with spacious cases. The 17.4-inch length requires room in the front or top. You will need a case that supports 140mm fans. The full copper body is ideal for high-TDP CPUs. It works well in static pressure setups. If you want a robust, no-nonsense cooling solution, this fits. The G1/4" ports are standard for most tubing. It is a solid choice for performance-focused builds.
Who should skip it
Skip this if your case is compact. The 17.4-inch length will not fit small form factor builds. You cannot use 120mm fans on this unit. The 12 FPI design may restrict airflow in tight spaces. If you need a lightweight option, the copper body adds weight. It is not for minimalist setups. Look for a smaller size if space is tight. This unit demands a large chassis to function properly.
Verdict: The Alphacool NexXxoS XT45 is a heavy-duty radiator for large cases. It offers reliable cooling for high-performance systems. Choose it if you have the space for nine 140mm fans.
Key specs explained
Material: Copper
The core and tubes are made of copper, which offers excellent thermal conductivity for heat transfer. This material choice helps move heat from the water to the fins more efficiently than aluminum. You benefit from better cooling performance in high-load scenarios. When shopping, consider that copper is heavier and often more expensive, but it provides superior heat rejection for demanding custom loops.
Fan size: 140 mm
This radiator is designed to accept nine 140mm fans on the front face. Larger fans move more air at lower speeds, reducing noise compared to 120mm units. You gain quieter operation while maintaining strong airflow. When comparing options, ensure your case has the space for a 9x140mm setup. This configuration is ideal for users who prioritize acoustic comfort alongside thermal performance.
Threads: 3 x G1/4"
The unit includes three G1/4 inch threaded ports for water line connections. These standard fittings allow you to attach tubing directly without additional adapters. You get flexible installation options for your loop layout. When planning your build, verify you have enough G1/4 ports on your block and pump. This standard ensures compatibility with most common custom cooling components on the market.
Fins per Inch: 12
The radiator features 12 fins per inch, creating a dense core structure. This density increases surface area for heat dissipation but may restrict airflow if fans are weak. You benefit from higher heat rejection capacity in well-ventilated cases. When shopping, compare this density against thinner options. Higher fin density requires high-static pressure fans to push air through the tight spaces effectively.
Dimensions: 441 x 422 x 48 mm
The physical size is 441mm long, 422mm wide, and 48mm thick. You must verify your case can accommodate this large footprint. The 48mm depth includes the core and end tanks. When selecting a case, check clearances for both length and width. This substantial size ensures maximum cooling surface but requires a chassis designed for large radiators to fit properly.
Design and build details
According to the listing, the Alphacool NexXxoS XT45 is constructed entirely from copper. This material choice affects both weight and thermal performance. The unit weighs 10.2 pounds. This mass suggests a dense core that retains heat well before transferring it to the airflow. The finish is black, which allows the radiator to blend into most PC cases without drawing attention away from other components.
The physical dimensions are 17.4 inches in length, 16.6 inches in width, and 1.89 inches in height. These measurements confirm the 1260mm size class. The 1.89-inch thickness is standard for single-row designs. You need to verify case clearance before installation. The footprint requires a dedicated space that can accommodate the full length and width.
Layout features three G1/4 inch threads for fittings. This allows you to connect standard tubing directly to the manifold. The design supports nine 140mm fans on the front side. You can also mount 200mm fans on the back, though this is less common. The fin density is listed as 12 fins per inch. This spacing balances airflow resistance with surface area. You should pair this radiator with fans that can push air through the fins efficiently to maximize the copper core's potential.
Installation and Daily Operation
Setting up this Alphacool radiator involves managing its physical footprint and weight. The unit measures 17.4 inches in length and 1.89 inches in height. You must ensure your case has enough clearance for these dimensions. The radiator weighs 10.2 pounds. This mass requires sturdy mounting points to support the full copper construction safely during operation.
Fan compatibility is specific. The listing states it supports nine 140mm fans on the front. This configuration fills the 1260mm length completely. You will need a case that accommodates this width or a custom loop layout that positions the radiator to accept 140mm units. The back side allows for 200mm fans, offering flexibility if you have space for larger airflow.
Daily use relies on the 12 fins per inch density. This fin spacing balances airflow resistance with surface area. You benefit from efficient heat dissipation when paired with adequate fan pressure. The three G1/4" threads provide standard connection points for your tubing and fittings. This allows easy integration into most custom loops without adapters.
The black finish is cosmetic only. It does not affect thermal performance. You should plan your loop layout around the 441mm by 422mm footprint. Ensure your pump and reservoir are positioned to handle the flow through this dense copper core. The setup is straightforward if your case dimensions align with the 17.4-inch length. No software or complex configuration is needed for basic operation.
Before You Buy This Radiator
This unit requires a case with ample internal space. Its dimensions are 17.4 inches in length and 1.89 inches in height. You must verify that your chassis can accommodate this footprint without obstructing other components. The radiator weighs 10.2 pounds. You need sturdy mounting points to support this mass safely. It supports nine 140mm fans on the front. Ensure you have compatible fans and sufficient airflow clearance. The listing notes three G1/4" threads. You will need appropriate fittings for your tubing connections. Copper construction demands regular maintenance. Check for leaks and coolant levels periodically to preserve performance. This radiator suits builders prioritizing high heat rejection over compact size. It fits best in cases designed for large custom loops. Compare its dimensions against your current setup before purchasing. Proper planning ensures a stable and efficient cooling solution for your system.
Check before you buy
- Verify case clearance for 17.4-inch length and 1.89-inch height.
- Ensure mounting points support 10.2-pound weight securely.
- Confirm availability of nine compatible 140mm fans.
- Check for required G1/4 fittings and tubing.
The product at a glance
Alphacool NexXxoS XT45 1260mm Copper Radiator
Best for: Large cases needing max cooling performance
- Radiator Size
- 1260mm
- Material
- copper
- Dimensions
- 17.4 × 16.6 × 1.89 inches
- Weight
- 10.2 pounds
View on Amazon: Alphacool NexXxoS XT45 1260mm Copper Radiator Affiliate link
This Alphacool NexXxoS XT45 is a 1260mm full copper radiator designed for high-performance PC water cooling. It supports 9x140mm fans on the front and 200mm fans on the back. The unit measures 441 x 422 x 48 mm and weighs 10.2 pounds. It features 12 fins per inch and includes three G1/4" threads for connections. You should choose this if you need a large, dense copper core for maximum heat dissipation in a spacious case.
Pros
- Full copper construction for superior thermal conductivity
- Supports 9x140mm front fans or 200mm rear fans
- Dense 12 fins per inch design
- Includes three G1/4" threaded ports
Cons
- Heavy at 10.2 pounds, requiring sturdy mounting
- Large dimensions may not fit smaller cases
- Black color may not match all builds
Good fit if
- You have a large case with ample space for a 1260mm radiator
- You prioritize maximum cooling performance over size constraints
- You want to use 140mm or 200mm fans for quiet operation
Skip if
- You have a small form factor case with limited radiator space
- You prefer aluminum radiators for lighter weight
- You need a compact radiator for tight builds
Verdict: Alphacool NexXxoS XT45 1260mm Copper Radiator is ideal for enthusiasts with large cases who need maximum cooling capacity from a full copper core. It fits users prioritizing performance and fan compatibility over compactness.
Specifications side by side
| Spec | Alphacool NexXxoS XT45 1260mm Copper Radiator |
|---|---|
| Radiator Size | 1260mm |
| Material | copper |
| Dimensions | 17.4 × 16.6 × 1.89 inches |
| Weight | 10.2 pounds |
| Color | Black |
| Model | 14351 |
Frequently asked questions
Is the Alphacool NexXxoS XT45 1260mm copper radiator heavy?
Yes, it weighs 10.2 pounds. This significant mass results from its all-copper construction. The dense material helps retain heat before transferring it to the fins. You must ensure your case mounts can support this weight securely without sagging over time.
What is the thickness of this 1260mm radiator?
The radiator is 1.89 inches thick. This depth allows for a larger core volume. A thicker core generally improves heat dissipation by providing more surface area for airflow. It is designed to fit standard 9-fan mounting positions in large cases.
Does this radiator come in a black finish?
Yes, the listing specifies a black color option. The black finish covers the copper core and tubes. This aesthetic choice helps the radiator blend with standard black PC components. It matches the typical look of modern high-performance cooling setups.
What material is the core made of?
The core and tubes are made entirely of copper. Copper offers superior thermal conductivity compared to aluminum. This material choice maximizes heat transfer efficiency from the water to the fins. It is ideal for users prioritizing maximum cooling performance over weight savings.
How many fans does this radiator support?
It is designed to support nine 140mm fans. The 1260mm length provides ample space for multiple fan mounts. This configuration allows for high airflow across the entire core surface. You benefit from increased cooling capacity when all fans are active.
What are the exact dimensions of the unit?
The unit measures 17.4 inches in length and 16.6 inches in width. The height is 1.89 inches. These dimensions require a large case for proper installation. You must verify internal clearance to ensure the radiator fits without obstructing other components.