Detritus from multiple computers.
The red card is pcix, and I’d wager was once a video card. The video card in a macbook is integrated into the motherboard. The circuit boards with the curvy bits missing are from a macbook, the circular cutouts are where the fans go.
Take special note of the scraped up brown looking spots… that’s where surface mount chips used to exist. They not only felt the need to hit them with hammers, but rip them from the circuit boards.
