Brocade X6 4×32 GFC 100 m QSFPs require MPO 1×12 OM4 ribbon cable connectors and multimode ribbon fiber cable, limited to 100 meters.
••Although the connector has 12 lanes in a row, the 4×32 GFC QSFP uses only the outer eight lanes (four from each end). The central four lanes are not used.
••Plug orientation does not matter because the plug is polarized—it takes care of itself, just like RJ-45. Specifically, it is female-female and key-up to key-up orientation.