Storage & Data Transfer Cables features: If you are looking for a professional and affordable dual PSU adapter, then your research is over here. That's because our product can meet your need. Adopted of premium material, it is practical and durable for long time use. It is not easy to get deformed and bring you much convenience. Features-Color:Blue-Material:copper-Size:20.00X6.00X1.00cm/7.86X2.36X0.39inInterface: 5557 24pin (20+4), 5559 24Pin Allowing you to add a second power supply unit to the computer Plug the 20+4pin 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 Powering your computer with dual PSUs so that you can plug in higher power graphic card or other components Small and compact size, light in weight, you can carry and use it wherever you go It is in stable characteristics, high performance and it is in great reliability, simple, easy to install.