Feature:1. Use black environmental protection 3 x 24PIN (20+4) male/24PIN female, old motherboards can also be used2. The wire of the two auxiliary power supplies is extended to 30cm/11.8in, which can make the space pulled by the auxiliary power supply larger, and also facilitate wiring and heat dissipation3. Can be used with 24pin and 20pin ATX motherboards to meet your device needs and give you a good experience4. More power for computer components without upgrading existing power, suitable for Bitcoin mining and Ethereum mining devices and triple PSU games5. The use of this line can be three small power supply and the main board at the same time switch machine, thus increasing the power supplySpecification:Item Type: 24pin CablesLength: Approx. 30cm / 11.8inColour: BlackFunction: Power SwitchUse Range: Large Power Supply within 2000WInterface: Main Power Supply 24PIN (20+4) 30cm / 11.8inUse Interface: 24PIN Power Supply1 Male End (on the Motherboard Side): 24 Pins3 Female Terminals (PSU Side): 24 PinsWiring Mode: Plug the 24PIN of the Main Power Supply into the Female Plug and Plug the Other End into the Motherboard, and Plug the Secondary Power Supply into the Other 24PIN Female Plug to Switch the Power at the Same Time.Package List:1 x 24pin CablesNote:Recognize the direction when inserting the cable, do not insert it backwards or insert it in an off‑position to prevent the device from being burned. When inserting the cable, first hold the socket of the device before inserting the cable to avoid inserting the socket pin with excessive force.