This SC keystone fiber jack adapter is tailored for OM1 multimode fiber systems and delivers reliable short- to medium-range connectivity with consistent optical performance. The beige housing adheres to multimode color coding conventions, helping technicians quickly identify OM1 links during installations and maintenance. Constructed with a precision zirconia ceramic sleeve and a UPC-polished ferrule, the adapter ensures accurate core-to-core alignment and reduced insertion loss through repeated mating cycles. Robust mechanical design provides firm snap-in retention in keystone faceplates and patch panels, while tight manufacturing tolerances help maintain repeatable optical characteristics over long service life. Ideal for legacy LANs, classroom networks, and small enterprise installations where dependable multimode links and straightforward identification are important.