Dell Powerconnect 3548P Switch - 48 Ports - Manageable - 48 X Rj-45 - Stack Port - 2 X Expansion Slots - 10/100Base-Tx, 10/100/1000Base-T - Poe Ports - Rack-Mountable High-performance, 48-port Fast Ethernet wire-speed solution which is ideal for resilient stacking, cost-effective wiring closet solutions Secure switching using edge authentication via 802.1x, private VLANs, voice VLANs, protocol VLANs, and SNMPv3 Robust security capabilities provided through flow-based IP, and MAC ACLs, port-based MAC security, RADIUS and TACACS+ remote authentication, SSL/SSH encryption, and IP-based management access filtering Supports open industry standards including advanced Quality of Service (L2, L3-aware), multiple spanning trees, SNTP and IP multicast support, dynamic link aggregation, dynamic VLAN configurations