Very reliable router, excellent features for the price, I configured it in load balancing mode, you can configure up to 5 WAN links, I currently use 3, you can use USB as WAN/LAN port with a USB adapter, and the network port can also be switched to a WAN port. up to 2 simultaneous connections to my ISP 3rd WAN I set up to reconnect faster if an error occurs. I've been using the Linksys velop mesh system in bridge mode for over a year. With buffer batteries. The only time I lost internet was during a planned outage for a network upgrade my ISP was doing. Very impressed with Grandstream so far.
π StarTech.com NETRS2321P: 1-Port RS232 to Ethernet IP Converter, Serial over IP Device Server - Black
5 Review
HB-UMLS Sabrent USB 2.0 Hub with 4 Ports and LED Power Switches for Each Port
12 Review
UGREEN USB 3.0 Ethernet Adapter Hub with RJ45: Fast Gigabit Ethernet Converter, 3 Ports USB 3.0 Hub Compatible for MacBook, iMac, Surface Pro, Chromebook, Laptop, PC
11 Review
π CERRXIAN RS232 to Ethernet Serial Device Server - TCP/IP Converter with 1Port DB9 RS232 Serial to Ethernet Connectivity
3 Review