It's not that the Pi3B "requires" 2.5A, it's that maxed out--full draw on USB plus running the SoC flat out--will need 2.5A. If you're not doing those things, 2A should be sufficient. If it comes to that, when the Pi3B was released, it was before the official 2.5A PSU, so lots of them were run on the Pi2B 2A PSU.
Statistics: Posted by W. H. Heydt — Tue Nov 19, 2024 2:53 pm