UGREEN Micro USB Hub OTG Adapter with USB 2.0 4-Port for OTG Android Phone and Tablet, MacBook Air, Surface, Ultrabook, PC and Laptop (White) Ideal choice for your PC and smartphone/ Tab, USB 2.0 hub 4 ports+ OTG USB 2.0 hub 4 Ports--Connect USB A male to your PC/ Laptop, and flash drive, card readers etc to this hub USB OTG Hub 4 Ports --connect micro USB to your OTG mobiles/Tab. Now control your OTG devices by mouse, keyboard, share data in your flash drive Micro USB female port is used for power supply to this hub, NOT for charging any devices. Portable Size, Cable Length: 50CM