Designed for PCs and Macs, the Expert Optical Trackball employs Kensington's DiamondEye optical technology for smooth, precise cursor movement. Surrounding the ball, is a Scroll Ring that puts scrolling right at your fingertips. Expert Optical Trackball even comes with a soft wrist rest-right.
General Device Type Trackball
Input Device Connectivity Technology Wired Interface PS/2, USB Movement Detection Technology Optical
Expansion / Connectivity Interfaces 1 x USB - 4 PIN USB Type A 1 x mouse - generic - 6 pin mini-DIN (PS/2 style)
Miscellaneous Included Accessories Wrist rest 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.
Software / System Requirements Software Included Drivers & Utilities OS Required Microsoft Windows 98 or later, Apple MacOS X 10.0 or later
Manufacturer Warranty Service & Support 5 years warranty Service & Support Details Limited warranty - 5 years