Work comfortably all day long with the ambidextrous B100 optical USB mouse. Smooth, responsive optical tracking moves the cursor just where you want it. And this plug-and-play mouse is simple to set upyou just plug it in to your USB and get back to business. Connector/Port/Interface: USB 2.0; Left/Right Hand Use: Left/Right; Mouse Technology: Optical; Wired/Wireless: Wired.