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Old 12-21-2009, 09:05 PM   #1 (permalink)
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Default USB power output and HUBS, question...

Right I think I'm correct im thinking a USB port gives out 2.5watts of power?

Lets say I have a 4 port USB HUB plugged into one the USB ports on my PC.

Now I plug devices into this HUB. Do the devices receive 2.5watts or is the 2.5w split between the ports on the HUB...


Basically I'm wondering if devices will work as normal when plugged into a HUB or if some possibily won't work as well compared to being plugged directly into a port on the tower?

examples being USB light, USB cup warmer etc (yes I am a USB gadget addict..)

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Old 12-21-2009, 09:23 PM   #2 (permalink)
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Default Re: USB power output and HUBS, question...

Depends on the model, its best to use a powered hub.

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Old 12-21-2009, 09:36 PM   #3 (permalink)
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Default Re: USB power output and HUBS, question...

Ste has the right idea. I once had a 4-port USB hub that just had USB power, and when i attached 4 devices to it, nothing would work..
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