Kensington Orbit TrackBall – Wired Ergonomic TrackBall Mouse for PC, Mac and Windows with Ambidextrous Design, Optical Tracking & 40 mm Ball – Space Grey (64327EU)

Kensington Orbit Optical Trackball – Trackball – optical – 2 button(s) – wired – PS/2, USB – black, metallic silver

Optical Tracking Technology – Internal optics precisely track the movements of the grey 40 mm ball, providing superior accuracy so you can quickly get your cursor where you want, improving productivity and efficiency – Compact Footprint – Uses far less desk space to use than a mouse so you can optimize the layout of your workstation – Ambidextrous Design – Works equally well for both right-handed and left-handed users to get the most out of their trackball – Plug and Play Installation – Quickly get clicking and scrolling with fast, simple installation through the reliable wired USB connection, plus it doesn?t need batteries – KensingtonWorks Customization – Free downloadable software provides an even more personalized experience, giving you the ability to assign a wide variety of program functions to each of the 2 buttons, as well as adjusting cursor speeds – Professional and Stylish Design – The 40 mm ball featuring a metallic silver finish, sits within a matte black and silver base for a stylish and modern feel – System requirements – USB port. Compatible with Windows 7, Windows XP, Windows Vista, and Mac OS XBox Contains1 x Wired Optical Trackball