Which USB to serial adapter should I buy? - #5 by diizzy ?
I bought these a few months ago and they seem legit (Prolific's software claims so at least) albeit a bit bulky
https://www.ebay.de/itm/5-3-1x-USB-to-RS232-Serial-TTL-Module-PL2303TA-USB-UART-PL-2303TA/274433141718?hash=item3fe57d6bd6:g:FG8AAOSw02JfGkwN