Get 3pcs HW-728 CH340E MSOP10 USB to TTL Converter Module PRO MINI Downloader >>>Manual: Click here to open<<< The USB to TTL downloader can be used as a serial communication, a single-chip downloader, an STM32 downloader, a route download, etc. The downloader has a USB interface, which can easily extend the download line, and at the same time reserve a pin header interface to facilitate short-distance download and connection. Features: 1. Not only the power lamp PWR, but also the TXD and RXD indicators, so that you can intuitively understand whether the product is working without the instrument; 2. Support WINDOWS 98/ME/2000/XP/Server 2003/VISTA/Server 2008/Win7/Win8 32 bit/64 bit/win10 64 bit 3. Small volume performance 4.3v3/5V optional 5. Micro-USB interface data cable 6. With 3.3V regulator chip, ultra stable operation, compatible with 5v, 3.3V microcontroller program download and debug! 7. Module size 15.7mm*15.7mm, PCB size 16.02mm*17.4625mm STC Microc