Shortly after setting up this router the 2.4 band went out, then came on and then disappeared forever. Reset router, looked at all settings, nothing. I have many devices that don't work with 5G, so I need 2.4G. Then I saw that other commenters had the same problem and sent it back. It looks like they really need to sort this out. Also, the phone app didn't sync properly with the router when it came to parental controls, rendering it unusable unless it was on a desktop.
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 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
π Juiced Systems Silver BizHUB USB-C Multiport Gigabit HDMI Hub with 3 USB 3.0 Ports, Gigabit Ethernet, 4K HDMI, SD/Micro SD, and USB-C Power Delivery
11 Review