Micro USB 2.0 OTG Pen Drive Host cable. Can be used to connect pen drive, flash drive, Keyboard, Mouse, Ext HDD and other USB devices. Devices such as external HDD and others which require higher power to operate will need external power source. Some devices may not function as desired due to limitations set by the manufacturer of the device and phone. Product is brand new and in loose packaging. Comes with 1 month unconditional replacement warranty.