Features:Computer GPU water cooling block with POM cover. The water contact area is large, thus it can carry more heat from the GPU quickly. It has two connectors. The external diameter of the connector is 12.9 mm. The thread is international general G1/4. The copper base is processed with anti-oxidization technology. Specifications:Type: Water coolingColor: Shown as the picturesMaterial: Copper, POMThread Spec: G1/4"Actual Outer Diameter: 12.9mmCopper Base Size: Approx. 50 x 50 x 3mm / 2.0 x 2.0 x 0.1inchBracket thickness: Approx. 2mmPOM cover thickness: Approx. 18mmHole Distance: Approx. 61mm, 53mm, 50mmPackage Weight: About 143gPackage List:1 x GPU Water Cooling Block1 x Screw PackNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..