The 3-Button USB Optical Mouse For Mac & PC from Macally is a wired USB mouse with three buttons for pointing and clicking. A built-in scroll wheel allows you to page through web pages and documents with ease. The mouse has a 1000dpi optical sensor for precise, accurate tracking of your motions. It's plug and play so you won't need to install any drivers. Simply plug it into a USB port on a Mac or PC to get started right away.