Vintage Mouse Systems A+ Mouse (Model M2) – Retro Serial Computing Gear

Up for sale is a classic piece of computing history: a Vintage Mouse Systems A+ Mouse, Model M2, featuring the original 9-pin serial connector. Perfect for vintage PC collectors, retro gaming setups, or retrofitting an older desktop system. 

Product Specifications & Details:

Brand: Mouse Systems Corp. (Santa Clara, CA) 

Model: M2 ("A+ Mouse") 

Part / Serial Numbers: MSC 900422-293/C | SN: NTC BH07689 

Interface Type: 9-Pin D-sub Serial Connector 

Power Requirements: 5V DC, 150mA 

Origin: Assembled in USA 

Condition:

Used / Vintage Condition: The unit shows typical signs of age, including light scuffs, surface dust, and minor yellowing consistent with vintage plastics (please review all photos closely for exact physical condition).

Functionality: Sold as-is for vintage collection or display, as I currently lack the legacy hardware to fully test the 9-pin serial functionality.

What’s Included:

1x Mouse Systems A+ Mouse (Model M2) with attached serial cable 

Fast and secure shipping from a smoke-free home. Feel free to reach out if you have any questions before purchasing!