Dell X7636 - Two Button Scroll USB Ball Mouse YH933 Add new levels of comfort and control to your computing experience with the 2-Button USB Entry Mouse from Dell. Featuring two buttons, this mouse is ideal for Internet enthusiasts and gamers looking for programmability in mice buttons and fast, accurate response. This product has been tested and validated on Dell systems to ensure it will work with your computer. It is supported by Dell Technical Support when used with a Dell system. Highlights: Features two buttons and scroll wheel for ease of navigating Easy-to-install mouse. Works in any system with a functional USB port.