This product is a CH341A/B Programmer USB Motherboard Router LCD BIOS FLASH 24 25 Burner, available in either 1 piece or 2 pieces with a rich golden color.
Product features
Using FT232BL component and external EEPRON (93C46)
Supporindividuals Windows 10
Supporindividuals three power supply modes: 5V external power supply; 3.3V external power supply; External power supply (requires 3.3V-5V)
With 3 LEDs: TXD LED, RXD LED, POWER LED
GND, RXD, TXD, 3V3, 5V: using bent pin lead out
Other functions PIN: reserved pad Cindividuals, Rindividuals
Instructions for use: (Taking MCU access as an example)
GND: Connected to GNDRXD: Connected to MCU TX (Signal flow direction: MCU: TX>>FT232>>PC.RX)
TXD: Connected to MCU RX (signal flow direction: MCU) RX<>FT232>>PC.Cindividuals)