A4 Tech KL-7MU X-Slim Audio Multimedia Keyboard - 17 hot keys - Ultra Slim, Low-Noise Keycap Structure - Larged "Enter" Key - High Speed 2.0 USB Port - Audio In/Out Ports - System requirements Windows 2000 XP(X64) 2003(X64) Vista IBM PC or compatible system Available for PS/2 www.a4tech.com