Genius M6-400 31040008101 Black 4 Buttons USB Wired Optical 5000 dpi Gaming Mouse Maximum dpi: 5000 dpi Operating System Supported: Windows 7/8 or later Mac OS X 10.7.4 or later System Requirement: CPU: Intel/ AMD Processor 1GHz or above RAM size: 2G or above Available USB port Package Contents: M6-400 gaming mouse Mullti-Language quick guide