3Com - 3C17533 - Expansion Module 24-Port 1000BASE-X SFP IPv6 3C17533 - 3Com - Switch 8800 24 Port 1000BASE-X IPv6 Module 24 x SFP (mini-GBIC) Expansion Module $1,180.60 $1,000.51
3Com - 3C17711 - Expansion Module 4-Port 1000Base-T 3C17711 - 3COM - Superstack 3 Expansion Module 4 X 1000Base-T Expansion Module $56.68 $48.03
3Com - 3C17221 - Expansion Module Single-Port 1Gbps MT-RJ 1000Base-SX 3C17221 - 3Com - Single-Port MT-RJ 1Gbps 1000Base-SX Gigabit Ethernet Expansion Module for SuperStack 3 4400 Switch Series $43.19 $35.11
3Com - 3C17223 - Expansion Module Single-Port 1Gbps MT-RJ 1000Base-LX 3C17223 - 3Com - Single-Port MT-RJ 1Gbps 1000Base-LX Gigabit Ethernet Expansion Module for SuperStack 3 4400 Switch Series $933.13 $790.79
HP - J9548A - Expansion Module 20-Port 1000Base-T 2-Port SFP+ J9548A - HP - Expansion Module 20 x 1000Base-T LAN 2 x SFP+ $298.12