Feature: NOTE: charging board: only 1 distinguishing device transmission function can be recognized in real time, and the other 2USB can only be charged Long for desktop applications Short for notebook applications Professional chip design, high-speed data transmission, faster and more stable Mini compact and easy to carry, compact and small, no space Offline charging, no need to link the computer, direct link to the home idle mobile phone charger is a multi-port charger You can charge your mobile phone or tablet digital products. At the same time, external USB devices solve the troubles that the USB port is not enough, and bid farewell to repeated plugging. Specification: Item Category: 3 in 1 Splitter Transmission interface: standard USB2.0 interface Color: black Line length: 30cm/120cm Upport System: windowsXP/Vista/7/8, Suit for OS No Need to Install Drivers, Plug and Play Package Includes: 1*Splitter