this is actually (or at least looks like) a bare chip, not a circuit board. no idea what it’s for, but i can tell you that those octagon things are inductors.
My Bro made some college art by composing broken machine components and adding colored light. He has more with actual circuit boards but I cant find em.
still trying to work out what to do with it but it turns out a bunch of Sony’s old service manuals back in the day were distributed in fully vector PDF format, so dumping out the paths is trivial, meaning I have very high-fidelity SVG maps (with enough nodes to bring a modern PC to its knees because the conversion from PDF is, not especially efficient) of a PlayStation 2 motherboard
I was thinking it’d make a cool shirt but I think it’s actually too intricate to be printed like that so maybe it’s just a cool thing to have
there’s also an assembly diagram which might be a better candidate for making a shirt, but it’s still pretty borderline and toeing the line off offtopic