ITEM NAME:2x Water Cooling Copper Blocks For Graphics GPU Endothermic Head CPU Computers Descriptio n Description: Internal flow channel extrusion forming Brazing parts into a whole Leak rate of less than 5X10-6 mbar.l/s parts Internal fin thickness 0.5MM Specifications: Material: Aluminum Color: Blue Size: 40 * 40 * 12mm Spacing: 1 MM Processing: Vacuum Aluminum Brazing Surface Treatment: Blue Oxidation Applicable to computer CPU water, industrial inverter driver,laser head cooling, industrial control cabinet cooling ,etc. Package Included: 2 * CPU Water Cooling Blocks High quality buy, happy buyï ¼ 2x Water Cooling Copper Blocks For Graphics GPU Endothermic Head CPU Computers.Internal flow channel extrusion forming. Brazing parts into a whole. Material: Aluminum. Processing: Vacuum Aluminum Brazing. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted.