CH340G USB To Serial 5V 3.3V Break-out Expansion Module Board

Customize R/C port: RTS: Connect R/C port to RTS, it can flash ESP8266 module(such as: ESP-01 02 ... 12F) CTS: Connect R/C port to CTS, it can flash Arduino boards(such as: Arduino pro mini) Operating voltage: 5V (The max current depends on your USB port, usually 500mA) 3.3V (Using LDO, 300mA MAX) Package included: 1 x CH340G 5V 3.3V USB To Serial Module