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HP J9280A ProCurve 2510-48G 48-Port Gigabit Switch - 48 Ports, RJ-45, 10/100/1000, 96 Gbps, 100-127/200-240 VAC, up to 71.4 million pps at TigerDirect.com
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HP J4899C HP ProCurve Switch 2650 48-Port 10/100Base-TX 2x GbE 2x SFP Managed Ethernet Switch
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J9836A#ABA HP ProCurve 2920-48G-POE+ 48-Ports Gigabit Ethernet Layer3 Managed Switch with 4x
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J9728AR HP ProCurve 2920 48-Ports Layer-3 Managed Stackable Gigabit (48 x 10/100/1000Mbps)
JG237-61001 - HP ProCurve 5120-48G-PoE+ 48-Ports 48 X 10/100/1000 + 4 X Shared SFP with 2 Interface Slots Managed Rack Mountable EI Switch