Keep long-distance optical links stable with a duplex single-mode cable designed for backbone and interconnect runs. This Monoprice assembly uses 9/125 fiber for single-mode transmission, ST connectors on both ends, and a 3 mm yellow jacket for easy identification in dense racks and pathways. The OFNR rating supports use in riser applications, making it a practical choice for installations that need to meet cabling requirements without adding unnecessary complexity. Duplex construction helps simplify transmit and receive pairing, while the ST-ST termination is well suited to legacy fiber environments and equipment that still depends on bayonet-style connectors. For infrastructure teams, the value is in the details: a purpose-built fiber assembly that supports consistent optical performance, clear cable management, and dependable physical routing. It is a straightforward fit for network closets, telecom rooms, and point-to-point links where the cost of rework is higher than the cost of getting the cable right the first time.