Cooling Pads-Extruded inner runner- Brazing parts into a whole- Parts with leakage rate less than 5X10-6 mbar.l/s-Inner fin thickness 0.5MM-Processing: vacuum aluminum brazing-Surface treatment: silver oxide-Suitable for computer CPU water, industrial inverter drive, laser head cooling, industrial control cabinet cooling- Dimensions: 30x30x12MMnotes:1. Transition: 1cm=10mm=0.39inch2. Please allow 0-1cm error due to manual measurement. Please make sure you do not mind before bidding.3. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package includes:1 X Aluminum Water Block (No retail packaging)