... 100BaseSX SFP module, multi-mode, 2km, 1310nmFSFP-LX-151-port 100BaseLX SFP module, single-mode, 15km, ... 1310nmFSFP-LX-401-port 100BaseLX SFP module, single-mode,40km ... SFP module, multi-mode, 550 m, 850 nmGSFP-LX-101-port 1000BaseLX SFP module, single-mode, 10 ... km, 1310 nmGSFP-LX-401-port 1000BaseLX SFP module, single-mode, 40 km ...