Eaton N390B-77M-8AP 77 m OM4 8-Fiber MPO-to-MPO APC Cable

Carry eight parallel optical fibers across a 77 m run with an OM4 50/125 µm multimode patch cable terminated in female MPO APC connectors at both ends. The MPO-to-MPO format concentrates multiple fibers into one connector interface, reducing the number of individual duplex connections required for an eight-fiber path. APC-polished MPO ends provide the angled connector geometry required by APC-equipped MPO interfaces. N390B-77M-8AP uses Type B polarity, an MPO wiring arrangement that reverses the fiber positions from one end of the cable to the other. Type B assemblies are selected where the installed MPO channel and connected optics require that polarity path. Match the cable polarity to the cassette, trunk, adapter, or equipment-side MPO interface used in the link. The 77 m length distinguishes this assembly for longer rack-to-rack, row-to-row, or equipment-room runs where a short patch lead cannot reach. OM4 multimode fiber supports high-bandwidth multimode optical channels while retaining the 50/125 µm core and cladding dimensions used by OM4 infrastructure. The cable provides an 8-fiber female MPO APC connection at each end rather than duplex LC-style termination, making it appropriate for parallel-fiber MPO patching systems.