... .0/ 1.1. 2. No extemal power supply. 6. Built-in LED power indicator. USB 3.0 HUB 1.Compatible with USB2.0 ... /1.1. 2.Support for hot-swappable . 3.No extemal power supply. 4.The built-in current protection device . 5 ... , Telephone cable and Accessories, Cabinet, Fiber Optical, CATV Coaxial Cable, Power Board.Categories of computer electronics: Headphone, Bluetooth Headphone, Earphone, Speaker ...