5pcs Wemos® Ch340g Breakout 5v 3.3v Usb To Serial Module

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: 5 x Wemos CH340G Breakout 5V 3.3V USB To Serial Module