This product is either discontinued or we cannot get that from suppliers.
Lenovo Thinkpad USB Laser 57y4635, Wired via USB, Ambidextrous design, Mice Button 3 (left click, right click, scroll click), Adjustable 1600 DPI, 1200 DPI (default), 800 DPI, 400 DPI, Optical sensor, Scroll Wheel (up/down/left/right), O/S Windows 7, Windows 8, Windows 8.1, Windows 10.
Experience the superior precision and performance of laser tracking technology. Delivering extraordinary control on virtually any surface, the ThinkPad Laser Mouse offers improved tracking accuracy and smoother navigation over traditional optical mice.