Would you like something more? Alphacool NexXxoS XT45 1080mm Nova! 350 x 350 x 45 mm of pure cooling surface for nine 120 mm fans. Only one other Alphacool radiator offers more cooling surface in one piece: the Alphacool NexXxoS XT45 1260 SuperNova radiator. Uncompromising in material choice, Alphacool also relies on pure copper for the NexXxoS 1080 Nova radiator. The chambers, water channels, and cooling fins are made of copper, which is a unique feature worldwide. As a result, Alphacool radiators have been among the most popular and best on the market for many years, providing the perfect foundation for any water cooling system. Impressive cooling performance: To maximize the performance of a radiator, Alphacool pulls out all the stops. 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. Additionally, there is the special fin density. Alphacool is one of the oldest companies in the field of water cooling.