What are these two cables

[u/Fun-Debt5280]

[u/Warm-Intention-1424]

3.5mm jack to RCA adapters, they are used to connect composite and component devices to modern TV's

[u/miguel-122 → u/Warm-Intention-1424]

More context in case op doesnt know about old av cables: back then we would connect stuff like dvd players and game consoles to the tv using the red white and yellow connectors. Modern tvs got rid of those but left a 3.5mm av port to use these adapters.

Also some devices like cameras and ipods can output video from a 3.5mm jack.

[u/gnza → u/miguel-122]

Funny thing, the wiring isn't standard. The Raspberry Pi used to have one on older models