This USB UART adapter is very suitable for electronic engineering development.Compared to other USB to TTL UART adapters, this UART adapter not only supports 3.3V and 5V logic levels, but also adds support for 1.8V and 2.5V logic levels.

Specification:
Model: SH-U09A1
Main chip: Silicon Labs CP2102
Pin Definition: RXD,TXD,GND,VCC,RST,DTR,DCD,CTS,RTS
Output VCC: 1.8V/2.5V/3.3V/5V
TTL Level: 1.8V/2.5V/3.3V/5V
USB interface: 2.0
The maximum speed: 1Mbps

About indicator LED:
PWM LED:Power Indicator
RXD LED:The data transmission indicator flashes when there is data from the USB port.
TXD LED:The data receiving indicator flashes when the USB port receives data.

Application:
Support EEPROM, Vendor ID re-write, unbrick routers ,program ESP8266 module, interface to GPS modules, flash firmware on hard drive, update transmitter, interface to set top box and other compatible UART interface devices

Packing list:
1 X SH-U09A1 USB to TTL Converter
1 X User Manual
1 X 4 PIN DuPont cable

WARRANTY:
DSD TECH offers a 1-year warranty and lifetime technical support for this USB to TTL adapter。If you meet any question, Please contact us, We will fix your issue within 24 hours.