CH340 USB to Serial Converter 3V3 to 5V

Description of CH340 USB to Serial Converter 3V3 to 5V CH340 based USB to Serial Converter. For using with microcontrollers and other devices with serial interface (TX,RX). Thers's a 3V3-5V toggle switch which enables it to be used with both 5V and 3.3V devices.    Windows driver: Download from here. You might have to disable "driver signature enforcement" on windows first before installing the driver. To do that -  Step-1: Start>Update & security>Recovery>Restart now Step-2: Troubleshoot>Advanced options>Startup Settings>Restart Step-3: After Windows restarts 7) Disable driver signature enforcement Step-4: Press F7 to disable driver Signature enforcement