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Can I daisy chain my back up volumes?
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Forum Regular
Join Date: Jul 2007
Location: Bedfordshire, England UK
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I have a 500gb USB WD My Book Studio back up volume but as it is now full I want to buy a similar one but with 1TB capacity. My intention was to daisy chain them both but don't know if it is possible. I only have one USB slot left on my iMac which I want to keep vacant for other uses. Can I daisy chain these two backup devices or will I have to use a USB hub of some sort?
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Clinically Insane
Join Date: Nov 1999
Location: 888500128, C3, 2nd soft.
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You cannot daisy-chain USB. It is always host-to-device.
If you wish to connect multiple USB devices to a single port, you must use a hub.
(One of the ways in which Firewire and Thunderbolt are superior to USB, though the price difference is worth it for other reasons.)
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
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Originally Posted by Spheric Harlot 
(One of the ways in which Firewire and Thunderbolt are superior to USB, though the price difference is worth it for other reasons.)
Different sure, but superior? I don't see the appeal of daisy chaining over hubbing. It's like going back to token ring.
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Clinically Insane
Join Date: Nov 1999
Location: 888500128, C3, 2nd soft.
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The ability to both daisy-chain OR hub is an advantage, regardless of how significant you believe this advantage to be.
As I said, Firewire is worth the premium over USB for other reasons.
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Posting Junkie
Join Date: Oct 2005
Location: Houston, TX
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FireWire was useful in the miniDV days, but it's been superseded by USB/TB for performance (>1Gbps), compatibility (infamous iPod+iSight+Mac=fail, etc), reliability, security (DMA access), and cost.
Also Thunderbolt doesn't support hubbing, daisy-chain only.
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Clinically Insane
Join Date: Nov 1999
Location: 888500128, C3, 2nd soft.
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Originally Posted by mduell
FireWire was useful in the miniDV days, but it's been superseded by USB/TB for performance (>1Gbps), compatibility (infamous iPod+iSight+Mac=fail, etc), reliability, security (DMA access), and cost.
That's a little misleading.
The first viable replacement for Firewire in audio and video has been Thunderbolt. And on the machine that he has, Firewire is still most definitely superior to USB, not the least in terms of raw bandwidth.
I really didn't want to have to go over this AGAIN (though I suppose I did sow the seeds up in my first reply).
Also, FWIW, it just occurred to me: The original poster's MyBook STUDIO is actually a Firewire drive. Not only will transfers be faster than via USB 2, but Firewire can be daisy-chained.
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