Detail overview
   Hpe Jl683a Aruba Instant On 1930 24g Class4 Poe 4sfp/sfp+ 195w Switch - Switch - 28 Ports - Managed - Rack-mountable : 
 Key Feature : 
  Device Type : Switch - 28 Ports - L3 - Managed 
   Enclosure Type : Rack-mountable 1u 
   Subtype Gigabit: Ethernet 
   Ports : 24 X 10/100/1000 (poe) + 4 X 1 Gigabit / 10 Gigabit Sfp+ 
   Power Over Ethernet (poe) : Poe 
   Poe Budget: 195 W 
   Performance: Switching Capacity: 128 Gbps ¦ Throughput: 95.23 Mpps ¦ Latency (1 Gbps): 2.4 Μs ¦ Latency (10 Gbps): 1.3 Μs 
  capacity: Link Aggregation Ports: 8 ¦ Ipv4 Routes (static): 32 ¦ Vlans Supported: 256 ¦ Access Control Entries (aces) Per Acl: 480 ¦ Packet Buffer Size: 1.5 Mb 
   Mac Address Table Size: 16000 Entries 
   Jumbo Frame Support: 9216 Bytes 
   Routing Protocol: Static Ip Routing 
   Remote Management Protocol: Snmp 1, Rmon, Snmp 3, Snmp 2c, Http, Https, Tftp, Radius 
   Encryption Algorithm: Ssl 
   Authentication Method: Radius 
   Features: Flow Control, Dhcp Support, Arp Support, Vlan Support, Auto-uplink (auto Mdi/mdi-x), Igmp Snooping, Ipv6 Support, Half Duplex Mode, Full Duplex Mode, Spanning Tree Protocol (stp) Support, Multiple Spanning Tree Protocol (mstp) Support, Access Control List (acl) Support, Quality Of Service (qos), Trusted Platform Module (tpm), Lldp Support, Link Aggregation Control Protocol (lacp), Energy Efficient Ethernet, Class Of Service (cos), Bpdu Filter, Poe Class 4 
  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 802.1x, Ieee 802.1s, Ieee 802.1ab (lldp), Ieee 802.3at, Ieee 802.3az, Ieee 802.2af 
  processor: 1 X Arm Cortex-a9: 800 Mhz 
  ram: 512 Mb Sdram 
  flash Memory: 256 Mb 
  status Indicators: port Status, Power, Poe 
 Expansion / Connectivity : 
 Interfaces: 
   24 X 10/100/1000 Base-t Rj-45 Poe - 195 W 
   4 X 1/10gbit Lan Sfp+ 
 Power : 
   Power Device: Internal Power Supply 
   Voltage Required: Ac 120/230 V (50/60 Hz) 
   Power Consumption Operational: 234 Watt