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Why so much power for the USB 3.0 port replicator?

‎09-20-2020 05:06 AM

HP Recommended
Product: HP USB 3.0 3005pr Port Replicator

I just got a Notebook docking station for the USB 3.0 port replicator.

 

I was surprised that it expects a power input of 18.5V / 3.5A. That is 65W of power. As a comparison my laptop is 40W and my 24' monitor is 40W too. And the thing is that it doesn't power the laptop (as clarified in this question on the forum). So it basically only connects devices that are externally powered themselves, and yet needs 65W just to do its "hub" job?

 

Do I misunderstand something?

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