Thermaltake Aqua Rx Serises-R1 Memory Liquid Cooling Heatsink Cl-W0102 P/N - CL-W0102 Compatibility - DDR, SDRAM Material - Aluminum heatsink Copper tube Quick install connector - For 6.4mm ID (1/4? tubing For 9.5mm ID (3/8? tubing Dimension - 125 mm(L) X 40 mm(W) X 8.2mm(T)