TP-Link ER605 (TL-R605) is a professional, Gigabit Multi-WAN VPN gateway integrated into the Omada Software Defined Networking (SDN) platform. It offers centralized cloud management, load balancing, and high-security VPN support (IPsec, OpenVPN, L2TP, PPTP). Ideal for small business networks, it features up to 3 WAN ports and 1 USB WAN port for 4G/3G backup