ER840G has 2 x 10/100/1000Mbps Ethernet WAN ports and 3 x 10/100/1000Mbps Ethernet LAN ports, which will offer multiple choices for ISP connections and real-time backup and failover and load balance. Ports can be configured to at most 4 x WAN ports + 1 x LAN port, or 4 x LAN ports + 1 x WAN port.
ER840G supports smart QoS, which automatically allocates reasonable bandwidth, making sure users can download movies and play video games at the same time. It also supports various VPN functions such as IPSec, PPTP and L2TP that can be easily established.


