Amazon.com: Microsoft Pro Intellimouse – Light Shadow. Comfortable Ergonomic Design with 2 Customizable Buttons, Wired, USB, Gaming Mouse for PC/Laptop/Desktop : Video Games
IntelliMouse - Wikipedia
TCoCD: Microsoft IntelliMouse 1.3A PS/2 Compatible
Microsoft Intellimouse 1.3A Ps/2 Compatible - Etsy