Dell Optical Mouse - MS116 (Black) 

Optical LED tracking and cable communication enable the Dell Optical Mouse - MS116 to deliver exceptional performance consistently. The Dell Optical Mouse's precise 1000 DPI optical tracking will help you stay focused and increase your productivity at work or at home. This desktop companion, the Dell Optical Mouse, is made to be used comfortably for extended periods of time. It's simple to navigate around on-screen projects with the Dell Optical Mouse, which is shaped and scaled to match the curves of your hand and has two buttons and a scroll wheel. Nearly every computer with a USB connection can utilize the Dell Optical Mouse. You should have one mouse at work and one at home.