Are USB Cable Length Limits hard limits?

jamiedolan

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I'm trying to get a longer cable for my digital SLR camera, so I can live preview / shoot from the computer. The camera has about a 3 foot cable with a special USB end.

I was just going to order a 15 foot usb extension cable, but this would put me at a total of about 18 feet. Will this extra 2 feet matter? I've read various things about this, most of them saying that if the computer can't output enough power for the cord, that is when you have a problem.

I will be connecting to my Dell studio XPS built in USB port.

Thanks

Jamie
 

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Custom Build by CPU Solutions
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windows 8 64
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Intel® Desktop Board DX79TO
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Also have a Vaio VPCCW17FX Laptop. & Dell Studio XPS 8100 with 16GB of Ram running W8.
It probably will matter. Perhaps a powered hub in between may work:

USB.org - USB FAQ
 

My Computer

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Home built (GeneO industries)/Model 4
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Windows 10 Pro. EFI boot partition, full EFI boot
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ASUS Maximus VI Hero
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