Detail overview
   Hp Jl428a Aruba 3810m 48g Poe+ 4sfp+ 680w - Switch - 48 Ports - Managed - Rack-mountable.  
 Key Features :  
  Device Type : Switch - 48 Ports - L3 - Managed - Stackable 
   Enclosure Type : Rack-mountable 1u 
   Subtype : Gigabit Ethernet 
   Ports : 48 X 10/100/1000 (poe+) 
   Power Over Ethernet (poe) : Poe+ 
   Performance : Latency (1000base-t): 2.8 Μs ¦ Latency (10 Gbps): 1.8 Μs ¦ Latency (40 Gbps): 1.5 Μs ¦ Throughput (64-byte Packet Size): Up To 190.5 Mpps ¦ Routing/switching Capacity: 320 Gbps ¦ Switching Fabric Bandwidth: 338 Gbps 
   Capacity : Ipv4 Routing Table Entries: 10000 ¦ Ipv6 Routing Table Entries: 5000 
   Mac Address Table Size : 64k Entries 
   Jumbo Frame Support : Yes 
   Routing Protocol : Ospf, Rip, Rip-1, Rip-2, Bgp, Vrrp, Ospfv2, Ospfv3, Static Ipv4 Routing, Static Ipv6 Routing, Ripng, Mld, Bidirectional Forwarding Detection (bfd) 
   Remote Management Protocol : Snmp 1, Rmon 1, Rmon 2, Rmon 3, Rmon 9, Rmon, Telnet, Snmp 3, Snmp 2c, Http, Ssh, Ssh-2, Cli, Xrmon 
   Encryption Algorithm : Ssl 
   Authentication Method : Radius, Tacacs+, Secure Shell V.2 (ssh2) 
   Features : Arp Support, Spanning Tree Protocol (stp) Support, Per-vlan Spanning Tree (pvst), Access Control List (acl) Support, Quality Of Service (qos), Device Link Detection Protocol (dldp) Support, Uni-directional Link Detection (udld), Management Information Base (mib), Dynamic Vlan Support (gvrp), Multiple Vlan Registration Protocol (mvrp), Class Of Service (cos), Sflow V5, Type Of Service (tos), Openflow Support, Internet Control Message Protocol (icmp) 
   Compliant Standards :ieee 802.3, Ieee 802.3u, Ieee 802.3ab, Ieee 802.1p, Ieee 802.3af, Ieee 802.3ad (lacp), Ieee 802.1x, Ieee 802.1s, Ieee 802.1v, Ieee 802.11n, Ieee 802.1ab (lldp), Ieee 802.3at 
   Processor : 2 
   Ram : 6 Gb Ddr3 Sdram 
   Flash Memory : 1 Gb 
 Expansion / Connectivity :  
   Interfaces : 48 X 1000base-t - Rj-45 - Poe+ ¦ 1 X Serial (console) - Rj-45 - Management ¦ 1 X Management - Rj-45 ¦ 1 X - Rj-45 ¦ 1 X Micro-usb - Type B 
   Expansion Slots : 1 (total) / 1 (free) X Expansion Slot ¦ 1 (total) / 1 (free) X Stacking Module Slot 
 Power :  
   Power Device : Internal Power Supply - Hot-plug 
   Installed Qty : 1 (installed) / 2 (max) 
   Power Redundancy : Yes 
   Power Redundancy Scheme : 1+1 (with Optional Power Supply) 
   Power Provided : 680 Watt 
   Voltage Required : Dc 54 V 
   Energy Star Qualified : Yes