Kang 3 in 1 Micro USB HUB Male Female Double USB 2.0 Host OTG Adapter Cable S3 S2 S4 Expand your phone or tablets' functionality with this USB OTG (USB On the Go) adapter One Males Micro USB connects to one Micro USB female and Two USB 2.0 Female for external devices Move files (pictures, music, video) from your Phone or Tablet and Flash drive Connect a mouse, USB flash drive, digital Camear,keyboard or a game controller to your device,Add PC-like functionality to your Phone or Table USB interface support USB devices such as USB flash disk,USB mouse,USB keyboard and etc.