I've used EnGenius network devices in the past and you can't go wrong with the quality and features. Setup is easy, range is good. I recommend multiple access points and only one router on a wireless network. Hotspot costs have dropped. This model is good and won't break the bank.
π StarTech.com NETRS2321P: 1-Port RS232 to Ethernet IP Converter, Serial over IP Device Server - Black
5 Review
π HOYOKI 9 in 1 USB C Hub Adapter: Ethernet 1000Mbps, 4K HDMI, 3 USB 3.0 Ports, 5Gbps USB-C Data, 100W PD Thunderbolt 3, SD/TF Slots for MacBook, Dell XPS and More Type C Devices
6 Review
π» MacBook Purgo Adapter 2020/2018/2016/2016
4 Review
π USR-TCP232-410s: RS232/RS485 Serial to Ethernet Adapter/IP Device Server with DHCP/DNS Support
4 Review