User avatar
Posts: 13
Joined: Fri Dec 30, 2011 11:00 am
Location: Sheffield, S. Yorkshire
Contact: Website

Using a Powered USB Hub

Fri Oct 11, 2013 9:07 am

OK this may have been answered but I couldn't find it anywhere.

I've just bought a powered hub. Can I connect the HUB to the RasPi for both power and data? It seems odd connecting the same device to both ends, if that makes sense. I don't want to break either the RasPi or the hub by doing so.


All thoughts and comments are my own......
.... of course they are; who else would think like this?

User avatar
Forum Moderator
Forum Moderator
Posts: 1665
Joined: Fri Oct 14, 2011 8:06 pm
Location: The Netherlands
Contact: Twitter

Re: Using a Powered USB Hub

Fri Oct 11, 2013 12:51 pm

Hi there;
Sometimes the Hub will back power the Pi, as in supply power to it through the USB A port.
You can easily test this by leaving the micro USB port on the Pi disconnected and just connect the USB hub uplink cable.
If the Pi gets power then you're all good.

There is nothing wrong with doing what you want to do as far as I know.
But if you're worried about it you can just cut the red wire in the data uplink cable, then the Pi is forced to get its power from the micro USB connector.

Other people have done this before, see here; ... 2&p=330024

Joe Schmoe
Posts: 4277
Joined: Sun Jan 15, 2012 1:11 pm

Re: Using a Powered USB Hub

Fri Oct 11, 2013 12:56 pm

To the OP: Yes! I do this all the time. It is my standard setup.

My setup does not "back-power". I have a USB cable running from a port on the hub to the micro-USB of the Pi. It doesn't power up until I connect that wire.
And some folks need to stop being fanboys and see the forest behind the trees.

(One of the best lines I've seen on this board lately)

Return to “Troubleshooting”