Adafruit - 954 for Raspberry Pi

A small USB-UART TTL converter module based on the CH340 system with a USB type A connector. Designed for the ESP-01 and ESP-01S modules

RS232 - UART converter module based on the MAX3232 chip. There is a DB9 connector on the board and a 4-pin connector with a 2.54 mm pitch

Converter dedicated to industrial applications. It provides communication between the USB interface and the RS232 and RS485 serial standard

UART converter - USB based on the FT232RL system with TX, RX, RTS and CTS lines led out to the goldpin female connector. It uses a mini USB connector. Adafruit 284

RS232 - UART converter based on the MAX3238 chip. It uses all lines of the RS232 interface, thanks to which the user has all the standard\'s functionalities at his disposal. Pololu 126

UART - USB converter based on the FT232RL chip with TX, RX, RTS and CTS lines led out to the pin connector, the remaining lines available on solder fields for pin connectors. Micro-USB socket. Voltage supply from 3.3 to 5 V. FT232 USB UART Board (micro)

The module with the converter USB-UART CP2104 dedicated for minicomputers Raspberry Pi. Adafruit 3589

KAmod RS232S-ALL is a 3-5.5V RS232 to TTL converter supporting all RS232 signals, offering standard DB9 and Phoenix MC 3.81 connectors and 2.54mm goldpins, based on the MAX3238/SP3238 and providing ESD protection up to 15kV

The module with the UART-RS232 converter is designed to work with the Raspberry Pi Pico. It has a built-in SP3232EEN chip and enables data transmission between the UART interface and the RS232 device. Waveshare Pico-2CH-RS232

UART - RS232 converter with DB9 socket. Waveshare rs232-board

KAmod RS232H-mini is a miniature RS232 to TTL converter, operating in the voltage range of 3-5.5 V, supporting all RS232 signals, with a male DB9 connector, 2.54 mm goldpin pins, based on the MAX3243/SP3243 system, offering ESD protection up to 15 kV and a signal conversion direction corresponding to a DTE/Host device

Overlay module for Raspberry Pi with GSM, GPRS, GNSS and Bluetooth

WIFI-LPT100 Eval Kit module enables UART data transmission via WiFi, ultra low power consumption, encrypted communication

UART-RS232 converter module. The board was equipped with a Grove and DB9 connector. Seeed Studio 103020192

USB-UART TTL converter based on the CH343G chip. Equipped with a number of security features ensuring stable and safe communication. Waveshare CH343 USB UART Board (type A)