Driver
WCH CH340/CH341 USB-serial driver (CH341SER) for Windows
Recommended version Not hosted — available from the manufacturer
WCH's driver for programming cables with a CH340/CH341 chip. Windows 10/11 usually install it automatically.
Read before installing. Link only: the vendor page is script-rendered and the download link could not be read by the fetcher on 2026-09-18. Current, vendor-maintained.