I buy these a lot and they work great. Do not buy if you are unfamiliar with routerOS or willing to learn and post on the mikrotik forums. They are not for novice users.
Ubiquiti NanoStation locoM2 2.4GHz airMax 8dBi CPE - Indoor/Outdoor High Performance Wireless Device
30 Review
MikroTik RB941-2nD RouterBoard hAP Lite: Affordable 2.4GHz Home Access Point
71 Review
MikroTik RBcAPGi-5acD2nD-US: High-performance Dual-Band 802.11ac Access Point
35 Review
MikroTik Dual-Concurrent Access Point: hAP ac Lite RB952Ui-5ac2nD-US
79 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 StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
4 Review
π StarTech.com NETRS2321P: 1-Port RS232 to Ethernet IP Converter, Serial over IP Device Server - Black
5 Review
π USR-TCP232-410s: RS232/RS485 Serial to Ethernet Adapter/IP Device Server with DHCP/DNS Support
4 Review