Detail overview
   Hp - 2920-24g-poe+ Switch - Switch - 24 Ports - Managed - Rack-mountable (j9727-61002). 
 Key Features : 
  Device Type : Switch - 24 Ports - Managed - Stackable 
   Enclosure Type : Rack-mountable 
   Ports : 20 X 10/100/1000 + 4 X Combo Gigabit Sfp 
   Power Over Ethernet (poe) : Poe+ 
   Performance : Throughput : 95.2 Mpps 
switching Capacity : 128 Gbps 
   Routing Protocol : Rip, Static Ip Routing 
   Remote Management Protocol : Snmp 1, Rmon 1, Telnet, Snmp 3, Snmp 2c, Tftp, Cli 
   Authentication Method : Radius 
   Features : Dos Attack Prevention, Ipv6 Support, Half Duplex Mode, Full Duplex Mode, Class Of Service (cos) 
   Compliant Standards : Ieee 802.3, Ieee 802.3u, 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 802.1s, Ieee 802.1v, Ieee 802.3at, Ieee 802.3az, Ieee 802.1ax 
   Processor : 1 X Arm : 625 Mhz 
   Ram : 512 Mb - Sdram 
   Flash Memory : 1 Gb 
 Expansion / Connectivity : 
   Interfaces : 24 X 10base-t/100base-tx/1000base-t - Rj-45 - Poe+ 
4 X Sfp (mini-gbic) 
management : 1 X Rs-232 - Rj-45 
management : 1 X 5 Pin Micro-usb Type B 
   Expansion Slot(s) : 2 (total) / 2 (free) X Expansion Slot 
1 (total) / 1 (free) X Stacking Module Slot