this post was submitted on 26 Jun 2025
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HomeNetworking, community based networking help

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The original post: /r/homenetworking by /u/RedRedWine48 on 2025-06-26 21:03:16.

Hi all,

I’m setting up a network and would love some insight on real-world PoE draw. Here’s the planned setup:

  • UDM-Pro-Max as the router/controller
  • 48-port PoE switch (195W budget, USW-48-PoE Gen2)
  • Connected devices:
    • 7× UniFi U7 In-Wall APs (~13W each)
    • 2× NanoStation M5 (~6W each)
    • 15× G5 Bullet cameras (~4W each)

In theory, the total PoE draw is ~163W, which fits under the 195W budget. But I’ve read that real-world usage (start-up spikes, loss, etc.) can push beyond the rated numbers.

Question:

Has anyone run a similar load on the 195W switch without issues? Or would you recommend stepping up to the Pro 48 PoE (600W) for more headroom?

Appreciate any feedback—trying to future-proof but avoid overbuying.

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