This mouse is designed for reading SIM cards, SD cards, and Micro SD cards, conveniently in the body of the mouse. It has an ergonomic design, with scroll wheel and removable cover. Optical mouse with 800 dpi resolution. Plug-and-play compatibility, no installation required. USB connection. Features: SIM card, SD and mini SD card reader 800 dpi resolution, scroll wheel and removable cover No installation required USB connection Specifications: Compatible with MAC OS X/Windows 97/98 SE/2000/ME/Vista/ 7.0