features: works with any usb compliant system ps/2 keyboard and ps/2 mouse ports supports wheel mice usb powered requirements: for pc users windows 98, 98se,2000, me, xp available usb port for mac users mac os 8.6 or greater available usb port package content: 1 uc100km - usb to ps/2 adapter for keyboard/mouse 1 instruction sheet specification : housing case plastic operating system support win 98, 98se, 2000, me, xp, mac os 8.6 or greater cable length 6 in. (15.24 cm.) power connections bus powered humidity 20-80% rh, (non condensing) usb specification usb 1.1 compliant transfer rate 12 mbps operating temperature 20 to 50 degrees (celsius) storage temperature 0 to 70 degrees (celsius) ports (2) ps/2