DELL 407-BBDB, Fiber optic, 1000 Mbit/s, SFP, 21653.5" (550 m), 850 nm, Stainless steel DELL 407-BBDB. SFP transceiver type: Fiber optic, Maximum data transfer rate: 1000 Mbit/s, Interface type: SFP. Product color: Stainless steel