5-port Fast Ethernet Multi-Wan Router for Small and Medium Business, Configurable WAN/LAN Ports up to 4 Wan ports, Load Balance, Advanced firewall, Port Bandwidth Control, PPPoE Server, IM/P2P blocking, Port Mirror, DDNS, UPnP, VPN pass-through, 30000 Concurrent Sessions, 1U 13-inch rack-mountable steel case