Detail overview
   Hpe - Procurve Switch 3500-48 - Switch - 44 Ports - Ethernet, Fast Ethernet - 10base-t, 100base-tx 4x10/100/1000base-t/sfp (mini-gbic) - 1u Rack-mountable (j9472a). 
 Key Features : 
  Device Type : Switch 
   Enclosure Type : Rack-mountable - 1u 
 Networking : 
   Ports Qty : 44 X Ethernet 10base-t, Ethernet 100base-tx 
   Auxiliary Network Ports : 4x10/100/1000base-t/sfp (mini-gbic) 
   Data Transfer Rate : 100 Mbps 
   Data Link Protocol : Ethernet, Fast Ethernet 
   Routing Protocol : Rip-1, Rip-2, Ospfv2, Igmpv3 
   Remote Management Protocol : Snmp 1, Rmon 1, Rmon 2, Rmon 3, Rmon 9, Telnet, Snmp 3, Snmp 2c, Http 
   Connectivity Technology : Wired 
   Communication Mode : Half-duplex, Full-duplex 
 Processor : 
   Processor : 1 X Motorola Powerpc : 666 Mhz 
 Memory : 
   Ram : 256 Mb Ddr Sdram 
   Flash Memory : 4 Mb 
 Expansion / Connectivity : 
   Expansion Slots Total (free) : 4 ( 4 ) X Sfp (mini-gbic) 
   Interfaces : 
   1 X Management - Rs-232c - 9 Pin D-sub (db-9) 
   44 X Network - Ethernet 10base-t/100base-tx - Rj-45 
   4 X Network / Power - Ethernet 10base-t/100base-tx/1000base-t - Rj-45 
 Power : 
   Power Over Ethernet (poe) : No 
   Power Device : Power Supply 
   Voltage Required : Ac 120/230 V ( 50/60 Hz )