The Kensington Orbit Optical Trackball (64327EU) offers precision clicking at the touch of a finger, even on desks where space is at a premium. The ambidextrous design and simple two-button interface make it easy for anyone to discover the benefits of a trackball. The compact footprint is perfect for cramped desks where a mouse is difficult to use. Free Kensington Trackball Works software lets you customise the buttons and pointer speed to personalise your work environment. Simple design makes it easy to switch from a mouse Fully ambidextrous for both left- and right-handed users Connects to PC via USB or PS2 port (with included adapter) Wired USB cable means no need for batteries Optical trackball for better precision and performance Compatible with Windows 7, Vista, XP and Mac OS X
