[taffydavid]

Could it be that new tech that passes air over the board without a fan? Was announced last year, I forget what it was called

[soggybread]

You're likely thinking of a Piezo fan or solid state fan. It uses a thin membrane that vibrates and moves air though small spaces. Frore Systems had their Airjet Mini make the rounds in reviews and demos a couple years ago (2?).

[boobsbr]

Demo from 12 years ago:

https://www.youtube.com/watch?v=IK2H7lKbtLk