Before downloading a driver, you must know which hardware chip your adapter uses. The three most common chipsets are: (CP2102, CP2104) FTDI FT232R / FT232H Prolific PL2303 (TA, HXD, EA) WCH CH340 / CH341 How to Check in Device Manager Plug your USB to TTL adapter into your Windows 11 computer. Right-click the Start Menu and select Device Manager . Expand the Ports (COM & LPT) or Other Devices section.
Download the Silicon Labs CP210x Universal Windows Driver from their official website. usb to ttl driver windows 11 upd
FTDI chips are widely supported, and Windows 11 often installs them automatically via Windows Update. Before downloading a driver, you must know which
Double-click the setup.exe or VCPInstaller_x64.exe . Always Run as administrator if possible. Manual Update (If needed): Before downloading a driver