... modules (up to 4 10G XFP ports),GSFP-SX1000M SFP module, Multi-mode, 850nm, 500m, LC interfaceGSFP-LX-101000M SFP ... XFP2 port 10G XFP module base board for 3928HPOEXFP-SX10 Gigabit XFP Multi-mode, 850nm,300m, LC interface optical moduleXFP-LX-1010 ... 1310nm,10km, LC interface optical moduleXFP-LX-4010 Gigabit XFP Single-mode, 1550nm,40km, LC interface optical module High Performance Gigabit Ethernet POE ...