macally BUMPER MOUSE White 3 Buttons 1 x Wheel USB Wired Optical 1000 dpi Mouse Maximum dpi: 1000 dpi Operating System Supported: Mac OS X 10.6 to 10.8 and above Windows XP/Vista/7/8 and above System Requirement: Any desktop and notebook computer with available USB 3.0 or 2.0 port