Alphacool
Alphacool NexXxoS HPE-45 Full Copper 80mm Triple Radiator
Best high-performance radiator for custom liquid cooling enthusiasts.
Elevate your PC's cooling with the Alphacool NexXxoS HPE-45 Full Copper Radiator. Building on a decade of excellence, this radiator features an advanced internal design with more water channels and copper fins for superior heat dissipation. Its all-copper construction ensures maximum thermal conductivity, offering a performance boost of up to 6K over standard models. Designed for high-performance custom water cooling loops, this 280mm radiator supports 140mm fans and includes multiple G1/4 ports for easy integration.
$157.99
Owner Satisfaction
4.7
/ 5
Category Rank
159
/ 3965
#159 in Computer System Cooling Parts
Price vs Category Average
+5%
Above average
Dimensions (L x W x H)
314.5144453
/ x x mm (+/- %)
Who it's for
- Performance enthusiasts prioritizing maximum heat dissipation efficiency
- System builders using medium-speed fans for optimal cooling
- Modders fitting high-end cooling into compact or legacy cases
Who should skip it
- Users frustrated by the scarcity of high-quality 80mm fans
- Budget-conscious builders seeking cost-effective cooling solutions
- Overclockers needing massive surface area for extreme heat loads
Performance breakdown
Thermal Conductivity
Full copper construction ensures industry-leading heat transfer for demanding custom loops.
Cooling Efficiency
Advanced HPE design maximizes surface area for superior heat dissipation performance.
Build Durability
Stainless steel housing and protective screw plates prevent common installation damage.
Installation Versatility
Multiple G1/4 ports and dedicated drain access simplify complex loop routing.
Fan Compatibility
Supports flexible push-pull configurations for optimized airflow across the radiator core.
Flow Dynamics
Optimized internal channels maintain consistent coolant flow for high-performance cooling setups.
Key Specs
Dimensions (L x W x H)
314.5 x 144 x 45mm (+/- 3%)
Material cooling fins, pre-chambers & channels
copper
Material threads
brass
Material outer housing
stainless steel
Threads
4x G1/4 IN/OUT & 1x Fill-/Drainport G1/4 (max. 5mm thread length)
Possible fan size
140mm
Possible fan assembly
2x one-sided / 4x both-sided
Thread size fan mounting
M3
Features
- Full copper construction for optimal heat transfer
- HPE design enhances cooling efficiency
- Significant performance gain over standard radiators
- Supports 140mm fans in push/pull
- Protective plates prevent over-screwing damage
- Dedicated Fill/Drain port for convenience
- Designed for custom water cooling setups
- High fin density for efficient cooling
What customers say
Customers highly value the Alphacool NexXxoS HPE-45 as a premium solution for high performance in space-constrained custom water loops. The core appeal centers on its exceptional build quality, specifically the full copper construction, which ensures superior thermal conductivity. Enthusiasts praise the impressive cooling capacity this specialized 80mm radiator achieves, making it essential for Small Form Factor builds where larger radiators cannot fit. While the cost reflects the specialized engineering and materials, most agree the performance justifies the investment for these unique scenarios. The primary consideration is pairing it with appropriate high static pressure fans to maximize its efficiency.
Know before you buy
The HPE (High Performance Edition) design increases the number of water channels and copper fins within the radiator. This internal optimization allows for superior heat dissipation, providing a performance boost of up to 6K over standard radiator models.
Yes, the radiator is designed to support 140mm fans on both sides, allowing for a push/pull configuration. You can mount up to four 140mm fans in total.
The radiator includes integrated protective plates underneath the mounting holes. These plates prevent screws from being driven too deep into the radiator, which protects the water channels from accidental puncture.
Yes, it features a dedicated G1/4 fill and drain port. This makes it significantly easier to bleed air from your loop or drain the system during maintenance without having to tilt your case.
To ensure maximum thermal conductivity and durability, the cooling fins, pre-chambers, and water channels are constructed entirely from copper. The threads are made of brass for structural integrity, and the outer housing is crafted from stainless steel.
The G1/4 ports are designed to accommodate fittings with a maximum thread length of 5mm. Ensure your fittings do not exceed this length to avoid damaging the internal structure of the radiator.
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$158