DETAILS: HP Input/Output devices provide additional desktop functionality for HP notebooks. The HP USB & PS/2 Mouse is a two-button mouse with scroll wheel that provides the speed and accuracy of optical tracking in a simple, elegant design. It connects to standard USB ports and also comes equipped with a USB to PS/2 adapter that converts from a USB Series connection to a PS/2 connection. Product Description HP mouse Device Type: Mouse Dimensions (WxDxH): 2.5 in x 4.6 in x 1.5 in Weight: 4.6 oz Connectivity Technology: Wired - PS/2, USB Movement Detection Technology: Optical Buttons Qty: 3 Features: Scrolling wheel Cables Included: 1 x mouse cable - 6 ft ? 1 x mouse adapter OS Required: Microsoft Windows 2000, Microsoft Windows XP Home Edition, Microsoft Windows XP Professional Manufacturer Warranty: 1 year warranty ALTERNATE ITEM #: DC369A UPC: 0808736486514