XYGStudy PL2303 USB UART Board -Micro- USB to Serial TTL UART Module Converter Adapter 3.3V-5V Supports Windows XP-7-8-8.1-10-.

Features PL2303TA onboard (the latest device, compatible with PL2303HXA) Supports windows XP/7/8/8.1/10/... 3 power mode : 5V output, 3.3V output, or powered by target board (3.3V-5V) 3 LEDs: TXD LED, RXD LED, POWER LED How to Use In the case of working with a MCU: * VCCIO -- 3.3V or 5V output (the module is powered from USB, onboard jumper should be shorted to 3.3V or 5V) * GND-- GND * TXD--MCU.RX (signal direction: MCU.RX < PL2303 < PC.TX) * RXD --MCU.TX (signal direction: MCU.TX > PL2303 > PC.RX) Package Contains PL2303 USB UART Board (micro) × 1 4-pin custom connector jumper wire × 1 For more details you may need to know, pls firstly send me message via Amazon, I will then send attached link including User Guide for you, thank you for patience.:)