2.5" 3.5" HDD Hard Disk Drive SATA 22p to USB combo DUAL Power ESATA Cable Connector: 2.5" SATA (22PIN) HDD to Power ESATA. A cable to solve the power and data transmission. High-speed data transfer port, an external plug and play simplicity of use. Powered ESATA interface: support 5v and 12v volts,source end . SATA 22Pin: can connect the 2.5" and 3.5" Hard disk and no need the Power (You computer must support the Power ESATA 5V and 12V).