TP-LINK ER605 Omada Gigabit VPN Router (TP-ER605) - Interface: 1 x Fixed Gigabit WAN Port, 2 x Fixed Gigabit LAN, 2 x Changeable Gigabit WAN/LAN, 1 x USB 2.0 Port (Connecting 4G/3G Modem as WAN Backup), Flash: 128 MB NAND, DRAM: 256 MB DDR, Power Supply: External 12V/1A DC Adapter