IBM TS OPTICAL WHEEL MOUSE USB+PS/2 Optical 400DPI Black mice

TS OPTICAL WHEEL MOUSE 3 BUTTON TRAVEL NS (NMS) The IBM Optical 3-Button Travel Wheel Mouse PS/2 and USB is a compact, lightweight, three-button mouse, designed for ThinkPad customers who prefer a traditional mouse. Optical technology provides precision control and no mechanical ball (no need for a mouse pad). Its small size and cable wrap make it ideal for the mobile professional. This mouse comes standard with a PS/2 and USB connector. As a USB device, the mobile mouse can be connected to any enabled USB port.