USB to 4-channel TTL 4-channel USB to serial port downloade
a) About
LC USB to 4-channel TTL module, Using USB to 4 serial port chip, supports up to 12M baud rate, each channel has RX, TX, GND and 3.3V signals, can work separatelyb) View
①Front view
②Side view

③Reverse image

c) Introduction and Explanation
Board size: 33.04 * 33.04mm/5g
d) Functional Features
1. 4 serial ports, supporting 3.3V TTL level2. Type-C input
e) Instructions for use
1. Install the driver USBMSER.exe2. Open the serial port assistant, which can detect 4 serial ports. Serial port A corresponds to channel A on the board, and serial port B corresponds to channel B on the board

3. Select serial port to send and receive data
