Alphacool NexXxoS XT45 Full Copper Radiator 400mm x 45mm radiator - Black

Could it be a little bigger?

Uncompromising in the choice of materials
As usual, Alphacool has used pure copper for the NexXxoS 400 mm XT45 radiator. The pre-chambers, the water channels and the cooling fins are made of copper and are a unique selling point worldwide. This has made Alphacool radiators among the most popular and best on the market for many years, providing the perfect basis for any water cooling system.

Powerful cooling performance
To maximize the performance of a radiator, Alphacool digs deep into its bag of tricks. It starts with copper. With a thermal conductivity of 400 W/(mK) for copper compared to 236 W/(mK) for aluminum, the winner is clear. Added to this is the special fin density. Alphacool is one of the oldest companies in the water cooling sector and has conducted countless laboratory tests. The result, especially for such large radiators, is a fin spacing of 12 FPI. This impedes the airflow relatively little, as the air can flow through even at very low pressure. This makes the radiator ideal for low-speed fans. However, this does not affect cooling performance – quite the opposite. To optimize airflow, all cooling fins have small flaps. These are tiny blades that direct the airflow in the desired direction. On the radiators, these are barely 1 mm high, but still ensure controlled air turbulence to increase cooling performance and minimize airflow noise.

Which fans?
The 400 mm XT45 radiator offers space for a 200 mm fan with 154 or 165 mm mounting holes on the mounting frame. The fans are screwed onto a mounting frame, which can also be removed for purely passive operation so as not to impede natural airflow.

Connection options
The Alphacool NexXxoS 400 mm XT45 radiator has four G1/4" threads for IN and OUT. Another G1/4" thread on the back of the radiator serves as a fill port. Alternatively, a temperature sensor or drain valve can be installed here.
Small is a thing of the past. With a cooling surface of 40 x 20 cm, the 400 mm XT radiator offers more cooling surface than a 560 mm radiator. This is more than enough cooling power to cool any CPU and graphics card in a single water circuit.