Lenovo 4Y51D20850 mouse Office Ambidextrous USB Type-C Optical 2400 DPIThinkPad USB C Wired Compact, USB C, 2400 DPI Whether you have the latest ultrabook or a trusty old notebook, the pocket sized ThinkPad USB C Wired Compact Mouse will help to up your game. Conveniently and uniquely, you can plug and play with it via or a USB C or USB A port (via a special convertor). And with up to 2400 on the fly DPI adjustment, you can click and scroll more accurately and precisely, wherever your work takes you. Mouse Purpose Office