Is PoE more efficient than plugging in adapters for each network device?
And at what scale does it start to matter?
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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
It will allow up to 15.4W to be drawn from the port by default, if the device only uses 2W then it only gives 2W.
You can’t push 15.4W and have it go nowhere, that’s not how electricity works.