Ch340 Driver For — Windows 11

If you’ve just bought an Arduino clone, an ESP8266 board, a USB-to-UART converter, or a 3D printer, chances are it uses the CH340 chip. It’s cheap, reliable, and everywhere.

Once set up, the CH340 is rock solid. Happy tinkering. Last tested: Windows 11 23H2 / 24H2 – Working as of April 2026. ch340 driver for windows 11

But when you plug it into a PC, nothing happens. No COM port appears. Or worse, you see the dreaded yellow exclamation mark in Device Manager. If you’ve just bought an Arduino clone, an

| Issue | Fix | |-------|-----| | Cable is power-only | Use a data sync USB cable | | USB port issue | Try USB 2.0 port instead of USB 3.0 | | Conflicting COM port | In Device Manager, right-click → Properties → Port Settings → Advanced → change COM number | | Old driver still present | Use pnputil /delete-driver (advanced) or run Driver Store Explorer | The CH340 is not plug-and-play on Windows 11 by default, but installing the official signed driver from WCH solves 99% of cases. Avoid random “driver updater” tools — they often install malware. Happy tinkering

Do you still have issues? Let me know in the comments below!