Features: 1.Material: The fins, water chambers and guards are made of red copper, which has good heat dissipation effect and fast heat dissipation. 2.G1/4 Screw Interface: G1/4 universal screw interface is adopted, which is easy to install. 3.Function: The inner diameter of the copper tube is more than 6mm, which increases the flow of water and impurities in the liquid. 4.Applicability: Easy installation, DIY installation, suitable for installing 12cm fans. 5.Slim Appearance: The slim appearance allows the radiator to fit in tight places and achieve low airflow resistance. specification:Item Type: Water Cooling Radiator Material: Copper Fins, Copper Water Chamber, Copper Guard Plate (T2 Copper) Model: TSRP ZT 240TG Hole Position: G1/4 x 2 Product Size: Approx.276 x 121 x 29mm / 10.9 x 4.8 x 1.1in Pressure Test: 1bar Compatible Fan: for 12 x 12 x 2.5cm Fan Pipe s: Approx.6pcs 7 x 0.28mm / 0.3 x 0.011in (The Inner Diameter Of The Copper Tube Is More Than 6mm, And The Water Flow And The Impurity In The Liquid Can Be Increased) Fin Thickness: Approx.0.11mm / 0.004in PackageList: 1 x Radiator 1 x Screw Bag