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~~Are those near a connector (maybe on the other side?)~~
~~Could be a bunch of ESD protection diodes which only come in to play if you wear socks on carpet and touch the connector terminals.~~
~~Can you provide the numbers listed on the parts? Usually just 3 numbers/letters.~~
~~Also, looking at the circuit traces, does it look like all three terminals are connected? Is one connected to the ground plane? (The copper that covers most of the board surface around the circuit traces).~~
Edit: looks like they’re 2N7002 MOSFETs
https://www.diodes.com/assets/Datasheets/ds11303.pdf
These act like a digital switch that can use a small voltage to toggle a larger current. Odd to have so many, you normally wouldn’t use a bunch in parallel instead of just a larger FET.
So they look like they’re all connected to the same traces?
It's like well, here I guess:
https://i.postimg.cc/XJNcnppT/modelblock-gaming-pd.png
You might be able to find a better resolution image of the board if you look, on them, it is written K72 then vertically smaller K2 (the 2 has an underline).
There are so many as you say, so makes me think, there's enough redundancy to leave it be.
Here's another idea. In that image, directly below these FETs you can see the little crab logo on the chip. That's the audio driver. It's possible these FETs are muting FETS for the analog audio channels. Basically they hold the audio lines down while you connect/disconnect your audio devices to prevent speaker pop.
Like this:
I've seen some designs that use two FETs per channel which could explain why there's so many.
That mb appears to have 8 channel audio on the backplane (7.1) and maybe another stereo header for the front panel headphones? That would make 10 channels in total which fits…