USB - RS232 (CH340) Adapter - Windows 10 Driver Installation - YouTube
USB Serial: What is Ch340? - Latest Open Tech From Seeed
USB Host - Serial Driver for FTDI, CP210X, PL2303, CH340/1 and CDC
Amazon.com: CH340 USB 2.0 to RS232 COM Port Serial PDA 9 pin DB9 Wire Cable Adapter : Electronics
HL-340 - USB to RS232 DB9 Adapter - CH340 Chip Based
CH340 Module USB To TTL CH340G Upgrade Download a Small Wire Brush Plate STC Microcontroller Board USB To Serial Instead PL2303|Integrated Circuits| - AliExpress
macOS Drivers for CP2102 / CH340 / CH341 / PL2303 USB to Serial RS-232 Devices