Trust AMI MOUSE SERIAL. Device interface: Serial, Movement detection technology: Mechanical, Movement resolution: 400 DPI. Minimum processor: Intel 386 CPU. Mouse dimensions (WxDxH): 105 x 62 x 28 mm, Mouse weight: 200 g. Compatibility: Microsoft and Mouse Systems compatible, Compatible operating systems: Suitable for DOS, Windows 3.x, 95, 98, NT4, 2000, ME and OS/2