Pololu 1606 - Parallax USB-to-Serial (RS-232) Adapter #28030

The Adafruit CH9328 UART to HID Keyboard Breakout allows for easy and fast emulation of a HID keyboard without the need for a microcontroller with native USB. The module is used in prototyping projects, automation, integration with single-board computers and in testing devices where keyboard signals are required. Thanks to support for various transmission modes and simplicity of integration, it is a practical tool for electronics engineers and embedded system programmers. Adafruit 5973

The KAmod USB HID module with the CH9350 chip enables reliable extension of USB HID signals via UART transmission, offering stable connections over long distances. With built-in protection features, advanced LED indicators, and full system compatibility, the device is ideal for industrial applications, embedded systems, and advanced control setups using standard HID devices.

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 (mini)

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

USB - UART TTL converter based on the FT232RL chip, the module is equipped with a miniUSB socket. Works with 3.3V or 5V voltage levels.

KAmod USB-UART-mini is a compact USB-C to UART converter, based on the FT230XS chip, enabling communication at speeds from 300 bps to 3 Mbps and providing the option of mounting using an additional front panel; includes LED indicators, supports signal voltages of 3.3 V, optionally 5 V, and offers support for Windows, Linux and Mac

The KAmodRS module is a reliable RS232-UART converter supporting voltages from 3 V to 5.5 V and enabling data transmission at a speed of up to 250 kbit/s. Thanks to the use of the MAX3232 chip, the module is ideal for a wide range of electronic and microcontroller applications requiring stable and effective serial communication

A small USB-UART TTL converter module based on the CH340E chip with a microUSB connector

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

USB-TO-TTL-FT232-M is a compact USB-to-UART converter with a pre-soldered connector, designed for quick and secure connection to microcontrollers and serial modules. Featuring the FT232RNL chip, ESD protection, and LED indicators, the module is ideal for development, diagnostics, and embedded applications. A perfect choice for embedded systems engineers and prototype developers.

Easy-to-use USB-to-Serial adapter based on the CH340G IC from WCH; works with 5V and 3.3V systems and should auto install on most operating systems without the need for additional drivers; uses the CH340G IC to quickly and easily convert serial signals to USB. DEV-14050

USB TO RS232/485 (C) is a versatile signal converter based on the reliable FT232RNL chip, enabling stable serial communication via a USB port. With support for both RS232 and RS485 and broad system compatibility, it is suitable for testing industrial devices, programming microcontrollers, and integration with computers in various hardware environments.

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 (micro)

USB - RS232/RS485 converter with the original FT2132RNL chip. It uses a USB type A connector and a screw connector to connect RS232 and RS485 interfaces. Supports a wide range of operating systems: Mac, Linux, Android and Windows 11, 10, 8.1, 8, 7. Waveshare USB TO RS232/485

USBRS232 interface with galvanic isolation

USB - UART converter based on the PL2303TA chip. Compatible with voltages of 3.3 V and 5 V, it has been equipped with a miniUSB connector. Waveshare PL2303 USB UART Board (mini) V2