GenuineFinisar FTLF8519P3BNLSFP transceiver
Up to 2.125 Gb/s bi-directional data links
Up to 500m on 50/125 µm MMF, 300m on 62.5 /125 µm MMF
APPLICATIONS: 1.25 Gb/s 1000BASE-SX Ethernet, Dual Rate 1.063 / 2.125 Gb/s Fibre Channel
850nm Oxide VCSEL laser transmitter

Finisar FTLF8519P3BNL RoHS Compliant 2.125G b/s 850nm SFP Transceiver - 850nm Oxide VCSEL, GigE, 1x/2x FC, 2.125 Gb/s transceiver, RoHS compliant, multimode, pluggable SFP footprint, 3.3V, LC connector, bail, digital diagnostics, -20/85? C operation, 550m