1000BASE-SX, Small Form-factor Pluggable (SFP), Field Replaceable Unit (FRU), Short Wave Length (SWL), 850nm Transmitter Wavelength, up to 550 meter reach
1000BASE-LX, up to 4.25Gb Data Rate, Small Form-factor Pluggable (SFP), LC Connector, up to 10km reach, Fibre Channel, 1310nm Wavelength, Single-mode Fiber (SMF)