Detail overview
   Dell 2prn3 Networking S3148 - 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 + 2 X 10 Gigabit Sfp+ + 2 X Combo Gigabit Sfp 
   Performance : Switching Fabric Bandwidth: 260 Gbps ¦ Forwarding Performance: 193 Mpps 
   Capacity : Mac Addresses: 32000 ¦ Ipv4 Routes: 1024 ¦ Ipv6 Routes: 1024 ¦ Ipv4 Routes (dynamic): 8160 ¦ Ipv6 Routes (dynamic): 4096 ¦ Links Per Group: 16 ¦ Priority Queues Per Port: 8 ¦ Layer 2 Vlans: 4000 ¦ Mstp Instances: 64 ¦ Vrf-lite Instances: 64 ¦ Host Table Entries (ipv4): 40000 ¦ Host Table Entries (ipv6): 8000 ¦ Multicast Table Entries (ipv4): 8000 
   Mac Address Table Size : 32k Entries 
   Routing Protocol : Vrrp, Ospfv2, Igmpv3, Msdp 
   Remote Management Protocol : Snmp 1, Snmp 2, Rmon 1, Rmon 2, Rmon 3, Rmon 9, Snmp 3 
   Authentication Method : Radius 
   Features : Mdi/mdi-x Switch, Port Mirroring, Front To Back Airflow 
   Compliant Standards : Ieee 802.3u, Ieee 802.3z, Ieee 802.1d, Ieee 802.1q, Ieee 802.3ab, Ieee 802.1p, Ieee 802.3x, Ieee 802.3ad (lacp), Ieee 802.1w, Ieee 802.1x, Ieee 802.3ae, Ieee 802.3ac, Ieee 802.1s, Ieee 802.1ab (lldp) 
   Ram : 2 Gb 
 Expansion / Connectivity : 
 Interfaces : 
   48 X Gigabit Lan - Rj-45 
   2 X 10gbit Lan - Sfp+ 
   2 X Gigabit Lan - Rj-45/sfp 
   1 X Usb - Type A 
   1 X Serial (rs-232) - Rj-45 - Management 
   1 X 1000base-t - Rj-45 - Management 
 Power : 
   Power Device : Internal Power Supply - Hot-plug 
   Installed Qty : 1 (installed) / 2 (max) 
   Power Redundancy : Optional 
   Power Redundancy Scheme : 1+1 (with Optional Power Supply) 
   Power Provided : 200 Watt