As a radio amateur, I try to have compatible RF connectors, but things appear that do not fit into my well-planned logistics. These are a few good connectors to have on hand. I believe they are good, at least for 5 or 6 GHz bands covering Wi-Fi, 4G cellphones and many 5G cellphone bands.
Asus RP-N12 N300 WLAN Repeater π 802.11 B/G/N - Boost Your Wireless Range!
10 Review
Boost Mobile Signal with 4G LTE Antenna TS9 - Dual πΆ Mimo WiFi Amplifier for Huawei Hotspot - Long Range High Gain Antenna
9 Review
Bingfu Dual Band WiFi Antenna (2-Pack) for Ultimate Wireless Performance
11 Review
4G LTE modem MikroTik LHG LTE6 kit white
38 Review
π CERRXIAN RS232 to Ethernet Serial Device Server - TCP/IP Converter with 1Port DB9 RS232 Serial to Ethernet Connectivity
3 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
π StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
4 Review