1、Support computer USB2.0 and Micro USB interface mobile phone with OTG function and tablet external 4USB interface OTG connector, such hub is suitable for mobile phone models are for Xiaomi / Huawei / Sony / Meizu / Samsung Galaxy S3 / S4 / NOTE 2/3, etc. 2、The computer USB interface and Micro USB mobile phone for Android system do not need to use a driver, and this docking station can be directly connected to an external storage equipment through the USB port to quickly browse and edit files, which is easy to carry, download and upload. And hub transmission speed can be up to 480Mbps. 3、Conforms to the USB 2.0 specification, this hub is backward compatible with the USB 1.1 / 1.0 standard specification, which uses the second-generation USB Hub controller. And it does not require a driver, plug-and-play and all use first-class high-quality electronic equipment to keep stable product operation. 4、For plug-and-play and hot swap functions, various high-speed (480 / 12Mbps) and low-speed (1.5Mbps) USB peripheral products can be connected. 5、USB2.0 interface uses 5 volt-voltage, 4 USB ports, each power supply up to 500 mA, no external power supply is required when normally connected to devices below 500 mA, such as when using a large-capacity mobile hard disk when the power supply is insufficient. There is a power port to plug in the power supply to the hub that it can be used normally while there are LED lights can show whether it is in working state.