OM3 Multimode SC/UPC Fiber Loopback Cable is designed for network testing, diagnostics, and troubleshooting in high-speed fiber optic systems. This loopback cable features low insertion loss, high return loss, and stable performance, making it ideal for verifying transceiver functionality in data centers and telecom environments. Built with OM3 multimode fiber, it supports 10Gbps transmission over short distances and ensures reliable and efficient signal reflection for equipment testing. The SC/UPC connectors offer secure mating and consistent optical performance. Compact, durable, and easy to use, it's an essential tool for fiber network maintenance.