Micro USB 2.0 TG On The Go 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 30 days unconditional replacement warranty. Please check if your phone is compatible with otg cable before buying. There will be no refund or replacement if your phone does not support otg host.