The EK-Pro CPU WB 4677 Rack Ni + Acetal is an enterprise-grade water block designed for LGA 4677 Intel Xeon processors, fitting 1U chassis for server rack use. It boasts 4 G1/8" threaded side ports for low-profile applications. Crafted for performance, reliability, and serviceability, it ensures top thermal performance and connectivity for liquid-cooled high-density computing systems. Its copper base is nickel electroplated, while the top is CNC machined from black POM Acetal, with a stainless steel hold-down bracket. HIGHLIGHTS ? Dedicated enterprise-grade water block for LGA 4677 Intel Xeon processors ? Fits 1U chassis for server rack compatibility ? Features 4 low-profile G1/8" threaded side ports ? Ensures top thermal performance and unparalleled connectivity ? Constructed with high-quality materials for reliability and serviceability Compatibility: LGA 4677 TECHNICAL DATA Dimensions (L x H x W): 118 x 78 x 22.2 mm Materials: Nickel-plated copper, stainless steel, POM Mass: 0.534 kg Ports: 4 x G1/8" Mounting method: T30 Torx Working pressure: 2500 Pa Maximal working pressure: 30000 Pa in loops containing an EK-Pro Pump Reservoir Manifold, otherwise 75000 Pa Operating temperature range: 5 - 60 C