[parameter] body size: 40x40x12mm/1.57x1.57x0.47inch;nozzle length: 15mm/0.59inch [material] aluminum alloy water cooling block, lightweight, antitrust, durable to use. [fit for] nozzle's minimum outer diameter: 7mm/0.28inch, the block can be connected to an inner diameter of 7-8mm water pipe. [shape] the surface of the water cooling block is polished, the inner flow channel is extruded into an m-shaped flow channel, brazing parts into a whole. [application] this water cooling block suitable for computer cpu, graphics cpu, games cpu, motherboard, and semiconductor, etc.