Some switches which don't use POE have large PSUs by default. Such as the new 9300-24S which is 24 SFP's and no POE support,but defaults to 715W PSU.
Why would it default to that, and why bother with more than 350W (it's supported)?
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a better power supply can make the device last longer , helps with cpu cycles and keeps the motherboard operating longer , youll get away with 350 butthere advising to use a 715 for longevity and better performance
But why would they suggest a 9300-48T use 350W when it has twice as many ports as 9300-24S, assuming it's "best practice" to always use a larger PSU? It seems as though the 9300-24S specifically requires it even though no POE is involved.