Is PoE more efficient than plugging in adapters for each network device?
And at what scale does it start to matter?
—
From my perspective; I’m going for a 3 node mesh router, plus 2 switches, and was considering if in 5 years time the electricity difference would be less than the extra upfront cost. The absolute max length of cable would probably be around 30m
Probably not, but it is nice to still have WiFi in the house when power cuts, as you can easily run the PoE switch on a UPS.