CH340 CH340G USB Programmer Module RS232 to TTL Module Upgrade USB to Serial Port

Feature: Brand new CH340G original chip Switchable output TTL level 3.3V/5V (with jumper) 3.3V and 5V output voltage to supply the programmed controller With power light PWR, TXD and RXD indicator light Used to upgrade various device Used for different diagnostics Can be used for Gas LPG ECU interface adjustments Size: Approx. 4 x 2.2cm / 1.57 x 0.86 inch Package Included: 1 * CH340G RS232 to USB TTL Auto Converter Adapter STC Brush Module Golden