USB to Serials Debugging Adapter CH340N Module, USB-A Plug, Pin Header, 3.3 V 5 V Selection for Microcontroller Programming &Development Multicolor

Features: USB-to-TTL Conversion: The CH340N module bridges a computer USB connection with TTL serial communication for microcontroller program downloads, debugging, and data collection. Built-In Connection Hardware: An integrated metal USB-A plug and preinstalled gold-plated pin header provide defined connection points for computer-side USB and project-side wiring. 3.3 V and 5 V Settings: Set the module to the documented 3.3 V or 5 V setting required by the connected TTL project before use. Visible Serial Activity: Transmit and receive indicators show communication activity, giving you a visual reference while checking a serial connection during debugging. Package Contents: Includes 1 USB-to-TTL CH340N module with its integrated USB-A plug and preinstalled pin header. Specifications: Component: PCB circuit board, metal USB male connector, gold-plated pin headers Quantity: 1Piece Size:Approx.4.2x1.5cm/1.65x0.59in Model:CH340N USB to TTL Module Function: USB to TTL serial port, program download, serial port debugging; Support 5V/3.3V switching Supporting: Transmit and Receive indicators light, built-in CH340N serial port chip; Package Includes: 1piece USB to TTL CH340N Module note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.