The single-mode patch cord is a section of fiber optic cable with a length of 3 or 5 meters, terminated on both ends with FC/UPC-FC/UPC duplex connectors. Model: TR-FC/UPC-FC/UPC Connectors: FC/UPC – FC/UPC Length: 3, 5 meter (Any Customize length available) Channels: Duplex Precision: Single mode