1Stainless steel outer panel is sturdy and durable, the inner copper sink is of excellent heat dissipation ability 2The radiating stripe improves radiating performance effectively with more radiating square and unique welding technique 3Protect your computer from damage of overheating 4Standard G1/4 thread, compatible with most devices, easy to install 5Universal used in PC water cooling system, or other professional electronic instrument or chipset cooling Features: Stainless steel outer panel is sturdy and durable, the inner copper sink is of excellent heat dissipation ability. The radiating stripe improves radiating performance effectively with more radiating square and unique welding technique. Protect your computer from damage of overheating. Standard G1/4 thread, compatible with most devices, easy to install. Universal used in PC water cooling system, or other professional electronic instrument or chipset cooling. Specifications: Material: Copper + Stainless steel Color: Matte Black Type Options: 120; 240; 360 Size: Approx. 120-155 x 119 x 27mm / 6.1 x 4.69 x 1.06in 240-277 x 119 x 26mm / 10.9 x 4.69 x 1.02in 360-395 x 120 x 28mm / 15.55 x 4.72 x 1.1in Inlet/outlet Thread: G1/4 Mounting Thread: 6-32UN Weight: approx. 444-1013g Applications: water cooling engineering - computer cooling system, industrial water cooling system Package List: 1 x Water Cooling Computer Heat Sink with Fittings Note: Please allow 1-3 cm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.