Acasis H027 3Ports OTG Micro USB to USB HUB For Tablet Phone Charging and Data Specifications:Brand: ACASISProduct Type: H027Color: Black Port: Mirco usb to 3 usb portsFeatures:1. Small、 lightweight and easy to carry. Just as the size of a pen shape、 easy to carry、 not the space.Micro USB interface、 support hot-hot-plug pulled. Data transfer speeds of up to 480Mbps.2. Supports OTG function and charge electricity. Compatibility、 support forAndroid、 win8、 win7、 Vista、 XP、 window 2000、 ME、 Linux and other operating systems.3. The mobile tablet are applicable、 support Micro USB port phones、 tablet with OTG function4. Extraordinary material safety and environmental protection、environmental protection ABS shell with high-density material、 non-toxic、 environment、 forming technology、 durable.5. Standard Micro USB OTG interface cable、 Micro USB interface for all common mobile phone must also support OTG function.Instructions for use:Position 1: closedPosition 2: OTG + ChargingPosition 3: OTG alone Note:1. Before purchase、 pls kindly check if your device supports Micro USB and OTG function2. If Position 2 OTG + charging off when charging is not applicable、 please separate OTG applicable appropriated position 3;3. After switching gear OTG interrupted again connected;4. Some devices may not read OTG、 plug or what equipment you can restart;5. Some tablet may be because the original charger voltage is too low、 encounter without charge、 then do not pull down the line、in the case of power、 the switch to the back several times、 and finally stopped at the Position 2 switch normally、if not you can try several times. Or just change to a charger around 5.Package inlcuded:1 x usb hub