This package includes three FT232RL FTDI USB to TTL serial converter modules from Geekcreit, designed to work with official Arduino boards. These USB to TTL serial converter modules provide a reliable bridge between a computer and microcontroller projects, making programming, debugging, and data communication straightforward. Key benefits Enables USB access to TTL level serial on microcontrollers such as Arduino and other TTL serial devices Simple programming and serial monitoring through a familiar USB connection Widely supported by FTDI drivers on Windows, Linux, and Mac, providing broad compatibility Compact and lightweight modules that are easy to integrate into projects or breadboard setups Pack of three modules, offering value for multiple devices or spare units Key attributes Functionality: USB to TTL serial converter using the FT232RL chipset Compatibility: Works with official Arduino boards and other TTL serial microcontrollers and peripherals Size and form: Compact PCB module with standard connections suitable for breadboards and prototyping Material: Standard PCB construction with surface mount and through hole components typical of FTDI based USB to serial adapters Performance: Provides a stable USB serial interface for reliable data transfer and programming tasks Power: Powered via USB connection for simple, buspowered operation What you get 3 pieces FT232RL FTDI USB to TTL serial converter modules Each module is a USB to TTL serial adapter designed to connect a computer to TTL level serial devices Applications and use cases Arduino programming and serial communication: Upload sketches and use the serial monitor with official Arduino boards and compatible microcontrollers ESP8266/ESP32 and other TTL serial modules: Flash firmware, configure boot modes, and monitor serial output Serial data logging and debugging: Collect sensor data or device logs from TTL serial devices for analysis on a computer Compatibility and drivers Requires FTDI drivers, which are widely available for Windows, Linux, and macOS Compatible with devices that use TTL level serial communication and a USB interface Notes This listing is a pack of three FT232RL USB to TTL serial converter modules from Geekcreit, marketed toward users who work with Arduino and other official Arduino compatible boards Typical usage involves connecting the USB port to a computer and the TTL serial pins to the target microcontroller or device Overall A practical, cost effective solution for adding USB to TTL serial capability to Arduino projects and other microcontroller based work The three module pack provides convenient options for multiple projects, experiments, or spares while maintaining a clear, credible, and professional build suitable for hobbyist and educational use