1. Module functions as: USB to IIC, USB to serial TTL 2. Provides 5V and 3.3V voltage outputs 3. USB to UART (serial data, ISP program download, /STM series microcontrollers), Serial data communication (50bps to 2Mbps, configurable for unconventional baud rates), ISP program download (/STM series microcontrollers) 4. USB to (chip and IC device operation, flashing) with adjustable communication speeds of 20K, 100K, 400K, and 750K 5. LED status indicator USB to /IC to UART Module Tool Multi-function selection and setting terminal The picture is a rendering effect and does not affect it. Color:As Shown Material:plastic Package Contents: 1 * Module 1 * Adapter cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.