PC
· Includes driver for Windows XP Pro and XP Home for programming all 5 buttons.
· Driver not required for basic functionality of product
· Freeware driver for Windows Vista (32 and 64 bit), XP x64, 2003, and 2000 at www.highrez.co.uk/downloads/XMouseButtonControl.htm. Although it is freeware, please make a donation to the author if you like it. (Evoluent and Kinesis have no business relationship with this vendor.)
· USB only. Not compatible with PS2.

Mac
· 1 button in OS9, 2 buttons and scroller without additional driver in OS 10 or higher.
· 5 buttons in OS X 10.4.5 without a driver: left click (top), right click (middle), expose' (bottom), show desktop (wheel), select window (thumb).
· www.usboverdrive.com sells a universal Mac driver that enables button programming. (Evoluent and Kinesis have no business relationship with this vendor.)
· USB port.

Linux
· 5 buttons in XFree 4.0.1 or higher without additional driver.
· USB port.