Engineered for OM4 multimode fiber systems, this SC fiber keystone adapter meets the demands of short-distance, high-bandwidth applications such as aggregated switch connections and high-density rack interconnects. The violet housing aligns with OM4 color coding to simplify identification and reduce accidental cross-connection with other fiber grades. A zirconia ceramic sleeve coupled with a UPC-polished endface ensures accurate core alignment and stable optical characteristics, delivering low insertion and return loss under sustained operation. The adapter installs into standard keystone plates and patch panels with secure retention and is well suited to modern enterprise networks, data center topologies, and any environment where performance consistency and clear cable identification are priorities.