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Old 12-21-2009, 10:05 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...

2.5/4=0.625watts

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, 10:23 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, 10:36 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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