ITEM NAME:2pcs Water Cooling Copper Block For Graphics GPU Endothermic Head / CPU Co UUR Description 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 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. Specifications: Material: Aluminum Color: Blue Size: 40 * 40 * 12mm Package Included: 2 * CPU Water Cooling Blocks High quality store for you! 2pcs Water Cooling Copper Block For Graphics GPU Endothermic Head / CPU Computer.2 CPU Water Cooling Blocks. 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.