this post was submitted on 16 Feb 2026
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Dad Jokes

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[–] qprimed@lemmy.ml 4 points 1 day ago

i would have guessed a null modem adaptor, cuz - why the hell not! but... assuming the USB to serial is a typical DTE (M) then the 9pin to 25pin would likely be (F) to (M), but the potato markings on the mystery adaptor seem to suggest M/M... so... 🤷‍♂️

your breakout box suggestion is a reasonable one.