Add comfort and control to your computing experience with MS116 USB Optical Mouse from Dell. The high-performance optical engine captures small movement inputs with ease. Ease-of-use and better reliability are assured because there are no moving parts to wear out or collect dirt and dust. Featuring three buttons, this mouse is ideal for Internet enthusiasts and gamers alike with fast and accurate responses. This product has been tested and validated on Dell systems. High-performance, reliable optical engine with faster, more accurate response, Features three easy to use buttons including scroll wheel..