Multimode connectors, sold in bags of 50 with 3mm boots. For 2mm or 0.9mm boot sizes call our sales dept. at 877-773-3423 

The FC connector holds a single fiber in a standard-sized (2.5 mm) ceramic ferrule. The connector body is made of nickle-plated brass, and features a key-aligned, threated locking coupling nut for repeated, reliable coupling. The threaded coupling nut provides a secure connector even in high-vibration environments, although it takes slightly longer to connect, since it requires turning the connector instead of a simple push and click. Some FC style connectors exhibit tunable keying, which means the connector key can be turned to obtain the best insertion loss, or otherwise align the fiber.