Mad Catz R.A.T. PRO S MCB4372200A6/04/1 8 Buttons USB Wired Optical 5000 dpi Gaming Mouse Mouse Grip Style: Adjustable Maximum dpi: 5000 dpi System Requirement: Windows 7 or Higher USB 2.0 Port Package Contents: R.A.T. PRO S Gaming Mouse with Gold-Plated 6 ft. USB Connector Cable