this post was submitted on 01 Apr 2026
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Pi is also a fraction of the power consumption (meaning also heat dissipation requirements) and physical size.
Low power draw but ridiculous power supply requirements of 5V5A (depending on the model) with a USB-C connector which isnt a thing outside of this specific application meaning they're going to be expensive and hard to source. They should have just done a barrel plug or put an effing voltage regulator on board like Arduinos.
It really needs USB-PD support with an onboard regulator, but of course that would be way too crazy to implement.
Pi's were cool up until the 3b and everything after has just not been good for the form factor. Conveniently, the 3B was about the time they started prioritizing selling volume to commercial customers.
That's only for the Pi 5 (the highest end unit), and I'll agree that at that level its hard to justify a Pi over a larger computer. Even for the Pi 5 its not that hard to find those Power Supplies. Most laptops today use power supplies that meet or exceed those specs. You're right that those are more expensive than Pi 4 and below Power Supplies.
Again, no defense of Pi 5 from me. However, for everything below Pi 5, HARD PASS on a voltage regulator. I don't want that heat in the tiny Pi case. At the lower power requirements of Pi4 and below USB power is fine.
Non those are USB-PD power supplies that increase voltage up to 20V in order to deliver more power. No USB standard that I'm aware of offers 5A at 5V.
As far as heat goes, these devices already need heatsinks and case fans, so the difference seems negligible.
Also, good luck using a Pi5 any further than 3ft from a wall outlet unless you want to rig up your own power supply using some 14/2 Romex with a USB C connector soldered to the end.
My thinkcentre draws power but not that much power. Also, just combine it with an ESP and you get the best of two worlds.