Dell Alienware Wired/Wireless Gaming Mouse AW610M, Wireless, wired - USB - 4 pin USB Type A, Optical, 16000 dpi, Buttons Qty: 7, 40 G maximum acceleration, polling rate: 1000 Hz, 400 inches per second, Cable Length: 2m, Auto- calibration, adjustable scrolling wheel, nylon braided cord, 7 programmable buttons, Omron technology, 50 million clicks, 5 on-the-fly DPI settings, detachable cable, 16.8 million AlienFX lighting, Color: Dark side of the moon