USB to TTL Converter Module CH340 3.3V 5V

1- Module size: 4 x 2.2 cm / 1.57 x 0.86 inch
2- Color: Golden
3- Brand new CH340G original chip
4- Switching Output TTL 3.3V / 5V (with bridge)
5- 3.3V and 5V output voltage to provide programmed control
6- With power LED PWR, TXD and RXD indicator light
7- Used to update your device
8- Used for various diagnostic
9- Can be used for gas LPG ECU interface adjustments