USB 2.0 Power Booster Cable Type A to Mini-B This dual-connector cable is designed specifically for the USB drives. Normally, the USB port on the PC provides enough power to operate the drive. However, there are some models of computers that do not supply enough power for the drive to operate. In those rare cases, this cable can be used to power the drive using power from two USB ports on the system. Fully certified high-speed USB 2.0 cable Transfer rates up to 480 MB/s Double type-A Male to single Type-Mini-B Male connector Length: 20-Inch Downward compatible with USB specifications 1.0, 1.1, and 2.0 These fully-rated universal serial bus cables attach easily to any 5-pin mini-USB device. Mini USB cables are designed to connect your 5-pin mini-USB device to the USB port on your PC or Mac. The 5-pin Mini USB Cable works with MP3 players, digital cameras including Sony, Olympus, Kodak, Epson, Minolta and HP, and other portable devices. Foil and braid shielding reduces EMI/RFI interference, and the twisted-pair construction reduces crosstalk, thus ensuring high-speed, error-free data transfer. The Mini-USB Cable meets all the UL requirements for communication cabling and is compatible with all USB specifications.