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 USB1.1 2. Input voltage:5V500mA1.1. 3. Support ... : Headphone, Bluetooth Headphone, Earphone, Speaker, Mouse, keyboard,Game Headphone and Keyboard, Game Mouse, Gamepad, USB Hub,Card Reader, PCI and PCI ...