For more than a decade, Alphacool has dominated the market with the NexXxoS Full Copper Radiator series. The extensive portfolio of radiator variants is unique worldwide. Just like our manufacturing process, which allows us to manufacture all water-carrying parts and the cooling fins from pure copper. This means that the NexXxoS series achieves the highest thermal conductivity of all radiators on the market. With their incomparable performance, the radiators can easily dissipate even extremely high levels of waste heat and have become indispensable in many areas of the cooling industry. The next evolutionary step: NexXxoS HPE Full Copper Radiator! The NexXxos Full Copper HPE Radiator uses the same materials as the previous NexXxos models, but goes a step further technically. The compressed internal structure has made it possible to increase the number of water channels and copper fins. This means that a larger volume of water is in direct contact with the cooling fins, and heat transfer is greatly improved. The higher number of fin rows and their shorter length also means that the cooling surface is used much more efficiently. (* Test setup: NexXxos ST30 360mm radiator vs. NexXxos HPE-30 360mm radiator with Eisbaer cooler and 3x 120mm Rise Aurora fans and on Asus Prime x299 motherboard with Intel i9 10900x CPU with 350W waste heat) Technical data L x W x H: 391.5 x 124 x 30mm (+/- 3%) Number of cooling channels: 12 Material cooling fins, pre-chambers & cooling channels: copper Thread material: Brass Material outer casing: stainless steel Connections: 4x G1/4" IN/OUT & 1x Fill-/Drainport G1/4" (max. 5mm thread length) Possible fan size: 120mm Possible fan configuration: 3x single-sided / 6x double-sided Fan mounting thread size: M3 Pressure tested: 0.8 bar Maximum working temperature: 60 C Fin spacing: 18 FPI Model: 14377