Description GPU Water Cooling Block PC Copper High Performance Liquid Cooler AMD NVIDIA W40 Features 2 holes on the side of the cover the water flows from the side 0 4 mm copper columns on the copper base The water contact area becomes large so the block can carry more heat from GPU quickly The base is made of T2 purity of 99 9 CNC cut copper The surface flatness is less than 0 01 mm The base can fit the GPU better so that it can absorb more heat The copper base is processed with anti oxidization technology Specification Copper base dimension mm 50 x 50 x 3Fitting thread G1 4Supported tube 9 5 mm ID x 12 7 mm OD PU tube or 10 mm ID x 16 mm OD solid tube or 8 mm ID x 12 mm OD silicon tubeMaterial Base CopperCover Clear acrylicFitting Brass Nickel platedCompatibility Compatible for GPU with fan hole distance of 53 mm 61 mm The support list is as follows Nvidia card 6800GT 6600GT 7800GT 7800GTX 7900GT 7950GT 7900GTO 7900GTX 8600GTS 9600GT 9500GT 8800GT G92 8800GTS G92 9800GT 9800GTX 9800GTX GTS250 GTS450 GTX550 GTX260 GTX260 GTX275 GTX285 GTX570 GTX580 GTX660 GTX660TI GTX670 GTX680 GTX560 GTX460 GTX460TI GTX560TI AMD card X1900PRO X1900XT X1900XTX X1950PRO X1950GT X1950XT X1950XTX 2600XT 2900XT HD3850 HD3870 HD4750 HD4770 HD4850 HD4870 HD4890 HD5830 HD5850 HD5870 HD6970 HD6950 HD6870 HD6850 HD6790 HD7870 HD7850 HD7950 HD7970 Package includeds 1 x Water Cooling Block2 x Compression fitti