1. Compatible with USB 1.1 2. Input voltage: 5V500mA1.1. 6. Support Win95/98/97/xp2000/visata. etc USB 2.0 FOUR PORT HUB 1. Compatible with ... , CATV Coaxial Cable, Power Board.Categories of computer electronics: Headphone, Bluetooth Headphone, Earphone, Speaker, Mouse, keyboard,Game Headphone and Keyboard, Game ...