... . Compatible with USB2.0/ 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 ... CATV Coaxial Cable, Power Board.Categories of computer electronics: Headphone, Bluetooth Headphone, Earphone, Speaker, Mouse, keyboard,Game Headphone and Keyboard, ...