?Dual USB to SATA, just plug and play, no need to install a driver, let your hard disk become a large capacity USB disk in seconds ?Mobile phone OTG connection is supported (the mobile phone needs to support OTG function), and then connected to the 12V power supply cable, the mobile phone can read the hard disk, film, television, music and other files ?LED indicator light design, the device will light up after being powered, real-time know the working state ?Reserved 12V DC power supply holes. When large-capacity hard disks are used, you do not need to worry about the insufficient power supply ?Compact and convenient, stable transmission compatibility is good, fast transmission speed Specification: ?Interfaces: USB to SATA ?Cable length: 15cm ?Product weight: 30g ?Procedure for connecting a 3.5-inch hard disk: ?First, connect the hard disk, then connect the power supply, and finally connect the host USB port ?Remove: safely eject the hard disk, then remove the USB, and finally remove the hard disk ?Connect the 2.5-inch hard disk, no external power supply is required ?Connect the 3.5-inch hard disk with a power supply port or power supply