Vintage Microsoft Mechanical Ball 2-Button Serial Mouse Part No 37964 Discover the precision of the vintage Microsoft Mechanical Ball Mouse, model 37964. This classic two-button serial mouse features a robust mechanical tracking method for accurate movement and responsiveness. Its distinct yellow color gives it a vibrant and nostalgic look that stands out from modern peripherals. Ideal for enthusiasts of retro computing or those seeking the reliability of older hardware, the Microsoft 37964 mouse is a testament to the durability and design of past eras. Add a touch of vintage charm to your workspace with this iconic Microsoft accessory.