Convenient device connects three USB and two PS/2 peripherals to your computer. Compact size makes it ideal for travel. LED indicator lights provide status at a glance. Self-powered design does not require an AC adapter. USB cable included. For Use With: USB 1.1 and PS/2 Peripherals; Operating System Compatibility: N/A; Connector/Port/Interface: 2 PS/2; 3 USB; Batteries Required: N/A. Manufacturer's limited one-year warranty.