Detail overview
   Hp - 5500-48g-poe Ei Switch - Switch - L4 - Managed - 48 X 10/100/1000 + 4 X Shared Sfp - Rack-mountable - Poe (jd376a). 
 Key Features : 
  Device Type : Switch - Managed - Stackable 
   Enclosure Type : Rack-mountable - 1u 
   Advanced Switching : Layer 4 
 Networking : 
   Ports Qty : 48 X Ethernet 10base-t, Ethernet 100base-tx, Ethernet 1000base-t 
   Data Transfer Rate : 1 Gbps 
   Data Link Protocol : Ethernet, Fast Ethernet, Gigabit Ethernet 
   Routing Protocol : Ospf, Bgp-4, Is-is, Rip-1, Rip-2, Igmpv2, Igmp, Vrrp, Ospfv2, Pim-sm, Pim-dm, Igmpv3, Gre, Ospfv3, Pim-ssm, Msdp, Static Ipv4 Routing, Static Ipv6 Routing, Ecmp, Ripng 
   Remote Management Protocol : Snmp 1, Rmon 1, Rmon 2, Rmon 3, Rmon 9, Telnet, Snmp 3, Snmp 2c, Http, Https, Cli 
   Connectivity Technology : Wired 
   Communication Mode : Full-duplex 
   Switching Protocol : Ethernet 
   Mac Address Table Size : 32k Entries 
   Features : Flow Control, Routing, Layer 3 Switching, Layer 2 Switching, Dhcp Support, Power Over Ethernet (poe), Arp Support, Vlan Support, Auto-uplink (auto Mdi/mdi-x), Igmp Snooping, Sflow, Access Control List (acl) Support, Quality Of Service (qos), Committed Access Rate (car), Jumbo Frames Support, Mld Snooping, Device Link Detection Protocol (dldp) Support, Endpoint Admission Defense (ead), Stp Root Guard, Unicast Reverse Path Forwarding (urpf) 
   Compliant Standards : Ieee 802.3, Ieee 802.3u, Ieee 802.3i, Ieee 802.3z, Ieee 802.1d, Ieee 802.1q, Ieee 802.3ab, Ieee 802.1p, Ieee 802.3af, Ieee 802.3x, Ieee 802.3ad (lacp), Ieee 802.1w, Ieee 802.1x, Ieee 802.1ad, Ieee 802.1ab (lldp) 
 Expansion / Connectivity : 
   Expansion Slots Total (free) : 4 ( 4 ) X Sfp (mini-gbic) 2 ( 2 ) X Expansion Slot 
   Interfaces : 48 X Network - Ethernet 10base-t/100base-tx/1000base-t - Rj-45 1 X Management - Console - Rj-45 
 Power : 
   Power Over Ethernet (poe) : Yes 
   Power Device : Power Supply 
   Voltage Required : Ac 120/230 V ( 50/60 Hz )