HP - J4908A - Switch Expansion Module 20-Port Gigabit 2x SFP J4908A - HP - ProCurve 4100GL 20-Ports 1000Base-T 2 x SFP (Mini-GBIC) GigaBit Ethernet Switch Expansion Module $570.36 $483.36
HP - J4908-61101 - Switch Expansion Module 20-Port Gigabit 2x SFP J4908-61101 - HP - ProCurve 4100GL 20-Ports 1000Base-T 2 x SFP (Mini-GBIC) GigaBit Ethernet Switch Expansion Module $151.05 $128.01
HP - J4908-61001 - Switch Expansion Module 20-Port Gigabit 2x SFP J4908-61001 - HP - ProCurve 4100GL 20-Ports 1000Base-T 2 x SFP (Mini-GBIC) GigaBit Ethernet Switch Expansion Module $151.05 $128.01
HP - J4908AR - Switch Expansion Module 20-Port Gigabit 2-SFP J4908AR - HP - ProCurve 4100GL 20-Ports 1000Base-T 2 x SFP (Mini-GBIC) GigaBit Ethernet Switch Expansion Module (Refurbished) $62.83
HP - J9536A - Expansion Module 20-Port Gigabit Ethernet PoE+ 2x SFP+ J9536A - HP - 20-Ports Gigabit Ethernet PoE+ 2 x SFP+ v2 zl Expansion Module $213.90 $173.91