Features: Internal extrusion flow forming channel. Brazing parts into a whole. Made of high quality material, durable, firm and stable so that we can use it. Applicable to Cellphone computer CPU water, industrial driver inverter, cooling, industrial cooling control cabinet. Surface treatment: silver oxidation.Processing: vacuum aluminum brazing. Package Includes: 1 x water cooling block Specifications: Item Type: Water Cooling Block Material: Aluminum Size: 20mm/0.79in 30mm/1.18in 40mm/1.57in Color:Silver Quantity: 1 PC note: Only the water cooling block, other accessories demo in the picture are not included No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store