Fixed WAN Port: 1x RJ-11 for VDSL2 35b or ADSL2/2+, LAN/WAN Switchable Port: 1x 10/100/1000Base-TX RJ-45, Fixed LAN Port: 5x 10/100/1000Base-TX RJ-45, USB Port: 2x USB 2.0, FXS RJ-11: 2 (V model), IPv4: PPPoE, DHCP, Static IP, PPTP/L2TP, IPv6: PPP, DHCPv6, Static IPv6, TSPC, AICCU, 6rd, 6in4 Static Tunnel, 802.1p/q Multi-VLAN Tagging: Yes, Multi-VLAN/PVC: Yes, Wireless WAN: 2 (ac model), 3G/4G/LTE WAN with USB modem: Yes, Load Balancing: IP-based, Session-based, Connection Detection: ARP, Ping, Warranty: 02 Years Limited Warranty