Vintage genuine Microsoft Serial / PS/2 Compatible 2-button computer mouse with FCC ID C3K5K5COMB.An original early-1990s Microsoft PC peripheral, made in the USA and designed for vintage computer systems. The mouse has a wired DB9 serial connector and mechanical ball tracking.This example shows age-related yellowing/discoloration, surface scratches, scuffs, marks, and adhesive/residue areas on the top housing. Please examine all photos closely for the exact cosmetic condition.Included is the Microsoft mouse with attached cable and DB9 connector only. No PS/2 adapter, software, manuals, box, or other accessories are included unless specifically shown in the photos.Photos are part of the description. Please review them carefully, as they show the actual item included in this listing.