On 2025-08-04, Dan Purgert <[email protected]> wrote: > > On Aug 04, 2025, Alain D D Williams wrote: >> On Mon, Aug 04, 2025 at 10:48:00AM -0400, Dan Purgert wrote: >>=20 >> > If you're thinking of the physical DE9 port that was typically used for >> > connecting "Serial" peripheral devices, you are absolutely correct that >> > it is now pretty much defunct in favor of the Universal Serial Bus. >> > That being said, I believe one can still purchase proper serial cards as >> > consumer hardware (i.e. $50 or so) that'll plug in to a PCIe x1 slot if >> > you really need to get away from "USB" for some reason.
>> Even easier is to buy a USB to serial converter, eg for =A312.85: > > That still leaves you on USB -- the comment about the PCIe card was > specifically for an instance where USB itself was the problem. > > I've had that a few times where "USB" was the problem for some reason > (I don't actually know the underlying cause); but the machines in > question are "oh hey, this used machine is 50 bucks on ebay" type > things, so that might play into it. Most of the time, one of those 4 > port riser cards is fine, but still once or twice I've needed the actual > serial card. USB can be finicky, in my experience.
