Optimized for OM3 multimode infrastructure, this SC fiber keystone jack coupler adapter supports high-bandwidth short-reach links including 10GbE server interconnects and backbone segments within data centers. The aqua housing makes OM3 runs easily distinguishable at a glance and assists technicians during installation and troubleshooting to preserve structured cabling integrity. Manufactured with a zirconia ceramic sleeve and UPC-polished ferrule, the adapter ensures precise optical alignment, low insertion loss, and consistent return loss metrics across numerous mating events. Its keystone form factor provides a secure snap-in fit for faceplates and patch panels, enabling tidy rack and wall installations while offering reliable operation in dense, high-performance network environments.