J9310A - HP - ProCurve E3500yl-24G-PoE+ 24-Ports Layer-3 Managed Gigabit Ethernet Switch 24 x 10/100/1000Base-T LAN 1 x Expansion Slot 4 x SFP (mini-GBIC)
J9311-61001 - HP - ProCurve 3500yl-48G-PoE+ 48-Ports Layer-3 Managed Gigabit Ethernet Switch 48 x 10/100/1000Base-T LAN 1 x Expansion Slot 4 x SFP (mini-G