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Old Sep 26, 2005 | 10:04 am
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USB Cables

What is the longest USB cable that people have successfully used?

I am looking to set up a USB hub in my home office and will need to get a USB cable 25' long - is that possible or are their signal problems with that lenght?
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Old Sep 26, 2005 | 10:13 am
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Originally Posted by back seat
What is the longest USB cable that people have successfully used?

I am looking to set up a USB hub in my home office and will need to get a USB cable 25' long - is that possible or are their signal problems with that lenght?
The spec is for 5 meters. If you use a cable with a repeater or a hub you should be okay, though. Something like this connected to a 10' cable should work.
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Old Sep 26, 2005 | 10:15 am
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Originally Posted by back seat
What is the longest USB cable that people have successfully used?

I am looking to set up a USB hub in my home office and will need to get a USB cable 25' long - is that possible or are their signal problems with that lenght?
Even though the specs claim it won't work over 5 feet, I've used USB 2.0 on a 15 meter cable before, and it worked just fine.

As the previous poster said; a repeater will make a difference for really long cables. Also consider putting a powered hub in the loop to make sure you don't have any power loss.
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Old Sep 26, 2005 | 10:59 am
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Originally Posted by ScottC
Also consider putting a powered hub in the loop to make sure you don't have any power loss.
Great suggestion!

Thanks
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Old Sep 26, 2005 | 11:02 am
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Also check for 16' repeater cables (make sure they support USB 2.0). You
can cascade 2 of them and they draw power from the interface so no AC adapters are required.
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Old Sep 26, 2005 | 11:20 am
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If you need really long distances, consider this, it's a set of adapters you can have up to 150 feet apart, connected by cat 5 cable.

http://www.cablestogo.com/product.as...1512&sku=39993

I've used extenders without any problems on some things, but others, like one of my printers, wouldn't work with anything other then a short cable on it, no hubs, no repeaters, no long cables, so the answer is it depends.
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Old Sep 26, 2005 | 11:44 am
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I should have asked this question early as well - I guess there shouldn't be any problem of putting 2 printers on the USB hub (only 1 laptop). . ..
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Old Sep 26, 2005 | 12:54 pm
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Originally Posted by back seat
I should have asked this question early as well - I guess there shouldn't be any problem of putting 2 printers on the USB hub (only 1 laptop). . ..
No problem at all. Printers draw almost no power off USB.
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Old Sep 26, 2005 | 7:33 pm
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Originally Posted by back seat
I should have asked this question early as well - I guess there shouldn't be any problem of putting 2 printers on the USB hub (only 1 laptop). . ..
If you're using USB 2.0 devices, it's a good idea to use a 2.0 powered hub. The spec for USB 2.0 devices allows for more current and un-powered hubs sometimes just can't keep up. In fact, most, if not all USB 2.0 hubs are powered by design - either from another USB 2.0 port, or from an external power pack.

With respect to cable length, just make sure it's a USB 2.0 certified cable. There is a difference. Most USB 2.0 cables have better shielding, thus yielding longer theoretical lengths. I've personally used a 15' USB 2.0 without problems.

redjr...
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