Unfortunately, with newer M1 macs and BigSur you are limited to FTDI USB serial dongles since there’s no new prolific driver AFAIK. At least the FTDI driver is included out of the box.
I’ve had really good luck when I’ve needed slow/odd speeds with the Comtrol RPS series of Ethernet connected serial boxes. Sent from my iPad > On Jun 26, 2021, at 3:09 PM, Brent Hilpert via cctalk <cctalk@classiccmp.org> > wrote: > > (Product ID 0x2303: Prolific produces a series of PL2303x USB-Serial chips.) > > It was plug-n-play on the Mac (given a terminal app program that knows to > accept and perform the little-used config specs).
