SANOXY Micro-B USB Host OTG Cable Adaptor for Samsung Galaxy Note, Motorola Xoom, LG, Sony, Universal Smartphones - Black With this Micro USB Host OTG cable, it lets your device to connect to USB Flash Drive, Mouse & Keyboard It also work with external harddisk, BUT you need external power source for the hard disk NOTE:It is a standard USB Micro-B HOST Cable, need your machine support usb host OTG function The Micro-B plug is for OTG device and also for Power charge. Color: Black. Length: about 4.5-inches.