Attributes . HPE 3CSFP91 Compatible SFP Module, 1000BASE-SX, 1GbE Multi Mode (MMF) Fiber Optic Transceiver, 1GE Gigabit Ethernet SFP, LC Connector, 550m, 850nm, DDM, HPE 3812, 3824, 3848 - Lifetime Warranty (3CSFP91ST) . Names