Logitech 3-Button USB/PS2 Wingman Gaming Mouse for PC/Mac Compatible with Windows 95, 98, and NT 4.0; and Mac OS 8.5 or higher Precision controls and gamer-approved design 3 programmable gaming buttons and USB or PS/2 interfaces available Includes Shogo: Mobile Armor Division T for PCs and iMacs Requires 166 MHz Pentium and 32 MB RAM, as well as 3dfx- or Direct3D-compatible card or 233 MHz Pentium