2-port Gigabit Ethernet module with 2 BaseT(X) or BaseSFP slot combo ports

2-port Fast Ethernet module with 2 BaseFX, MM, SC

2-port Fast Ethernet module with 2 BaseFX, SM, SC

4-port Gigabit Ethernet module with 4 BaseT(X) or BaseSFP slot combo ports

4-port Fast Ethernet module with 4 BaseFX, MM, SC

4-port Fast Ethernet module with 4 BaseFX, MM, ST

4-port Fast Ethernet module with 4 BaseFX, SM, SC