Specifications: Type: Water cooling Color: Shown as the pictures Material: Copper + POM + Metal Thread Spec: G1/4" Actual Outer Diameter: 12.9mm Copper Base Size: Approx. 50 x 50 x 3mm / 2.0 x 2.0 x 0.1inch Bracket thickness: Approx. 2mm POM cover thickness: Approx. 16mm Hole Distance: Approx. 61mm, 53mm, 50mm Package Weight: About 143g Package List: 1 x GPU Water Cooling Block 1 x Screw Pack Note: 1. 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. 2. There will be a little error in manual measurement, please understand. 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.