FUNCTIONAL PS/2 SERIAL PORT - Mouse with a classic design made to comply with the old generation of PC; Uses legacy PS/2 connector; Easy to install without additional drivers or installation required HIGH DEFINITION 1000 DPI - Optical tracking enables responsive and accurate work for any situation; Allows the users to navigate smoothly with simple 3 button design with precise scroll wheel SYMMETRICAL ERGONOMIC DESIGN - This product feels good in either hand and the buttons can be adjusted in computer BIOS. The comfortable curved shape supports natural hand position and reduces stress on the arms and hands. HIGH-QUALITY PRODUCTION - This mouse comes without logo printing and features a solid black color with glossy details on the side. This mouse provides simple integration with any home, office, or industrial systems SYSTEM REQUIREMENTS - Windows XP, 7, 8, 10 and above MOUSE DPI - 1000 CABLE LENGTH - 5.9 ft DIMENSION - 4.33 x 2.24 x 1.5 inches WEIGHT - 0.2 lb