Eaton N390B-91M-8AP 91 m OM4 MPO Type B Fiber Cable

Extend an eight-fiber multimode MPO connection across 91 m with the Eaton N390B-91M-8AP patch cable. It uses 50/125 µm OM4 multimode fiber and terminates in female MPO connectors at both ends. The cable provides a pre-terminated path where an MPO interface is required at each endpoint, avoiding field termination work on a long in-building fiber run. Type B polarity is the defining connection arrangement for this cable. In an MPO link, polarity controls how fiber positions map from one end of the assembly to the other. Type B uses a reversed fiber-position mapping, supporting parallel-fiber channel designs that call for Type B components. Match the cable polarity to the installed MPO cassettes, trunk assemblies, and transceiver connection method before deployment. The 8-fiber construction aligns with applications using eight active fiber paths rather than a 12-fiber MPO format. APC connector end faces provide the angled-polish interface specified for this assembly. Use this cable where the path requires OM4 multimode fiber, female MPO connections at both ends, and a 91 m reach. Its length makes it appropriate for equipment-room-to-equipment-room or distribution-area links where a short patch lead cannot span the required route.