Windows
· Includes driver for Windows XP, Vista and Win 7 in 32/64 bit for programming all 6 buttons.
· Driver not required for basic functionality of product.
· Freeware driver for other Windows versions: 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
· Basic functionality in OS X or newer without a driver: A Mac driver is coming in late 2010.
· Shareware drivers are available at www.plentycom.jp/en/steermouse and www.usboverdrive.com for programming the buttons. (Evoluent and Kinesis have no business relationship with these vendors.)
· USB port.

Linux
· Basic functionality without a driver.
· USB port.

Unix
· Comptibility unknown.