USB 2.0 Micro-B host OTG cable allows for faster charging. USB OTG cable for connecting USB devices such as usb keyboard, usb disk, GPS, USB DISK. external mass storage devices etc USB port to android smartphones and tablets with micro USB Port. Can charge two phones or other micro usb devices at the same time. Connector 1: USB 2.0 Type A Female Connector 2: One Micro USB Male , and One Micro USB 5 Pin Female . The Micro-B plug is for OTG device and also for Power charge. NOTE: It's a standard USB Micro-B HOST Cable , need your machine support usb host OTG function, so please confirm your device can support usb host OTG function before bidding. The disk format must be FAT32 if you connect the storage Length: about 20cm. Package: 1x Micro USB Splitter Cord