HLK-RM08K serial wifi module four- ethernet port two-serial port UART to WIFI module MT7688K development board_ WiFi Router Module_Products_ Shenzhen Hi-Link Electronic Co., Ltd.
Serial To WiFi Converter
Serial WiFi Adapter - RS232
Introducing: the WIFI232 serial to wifi adapter – georgeharito.com
WiFi RS232 serial converter profile - Model: S2W232EV2 - YouTube
Serial wireless Wi-Fi Adapter with RS232, RS485 and RS422 interfaces
RS232 Serial Wifi Modem for Vintage Computers V4 from The Old Net on Tindie
RS485 to WiFi Converters | RS232 to WiFi Converters | Serial WiFi Converters-PUSR IOT
ESP8266 Serial Wifi Transceiver Module for Arduino ESP-07 V1.0 | eBay
WI232+ - Advanced Serial to Wi-Fi Adapter - No Power Supply - DCE (female) – Grid Connect
Serial to WiFi Converter USR-W610 - Sourcewell Devices
Serial to WiFi Adapter for connecting RS232 to networks
USR-W610 BGNing RS232 RS485 Serial to WiFi Ethernet Wireless Converter | IOTNVR USA