Reliability has a name: CHERRY MC 3000. The proven corded mouse from Cherry combines sophisticated technology with ergonomic design and maximum functionality. An additional benefit: The ergonomic shape and comfortable operation reduces the strain on your hand.- Ergonomic design for maximum comfort and fatigue-free working- High-resolution optical sensor (500/1000 dpi) for accurate smooth cursor control- 5 button mouse- Rubber ribbed side surfaces offer outstanding grip- Adjustable resolution (fast/slow) for individual adjustment of the scanning speed to suit the application- 1.8 m cable with USB connection for use on the laptop and PC