Interfaces:1 x USB - 4 PIN USB Type A, Movement Detection Technology:Laser, Features:Zoom wheel, scrolling wheel, soft rubber grip, Interface:USB, Connectivity Technology:Wired, Compatible with Windows 7:"Compatible with Windows 7" software and devices carry Microsoft's assurance that these products have passed tests for compatibility and reliability with 32-bit and 64-bit Windows 7., OS Required:Apple MacOS X 10.4 or later, Microsoft Windows Vista / XP / 7 / 8