JG541-61001 - HP - ProCurve 5500-24G-PoE+-4SFP HI Switch with 2 Interface Slots 24-Ports Manageable 24 X PoE+ 8 X Expansion Slots 10/100/1000Base-T PoE Po
JG541A - HP - 5500-24G-PoE+-4SFP HI Switch with 2 Interface Slots 24 Ports Manageable 24 x POE+ 8 x Expansion Slots 10/100/1000Base-T PoE Ports Rack-mount