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USB 3.0 vs eSATA... Which Is Better For An External Enclosure?

post #1 of 7
Thread Starter 
Just curious as to what OCN thinks. I want to get one since their 10% off at newegg today biggrin.gif
post #2 of 7
they are both properly fast, however USB 3.0 is backward compatible with USB 2.0 therefore it's alot more universal since you don't see esata on every computer.
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post #3 of 7
I like Esata but the above poster makes a valid point. But most esata enclosures are also going to have at least usb 2.0 as well.
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post #4 of 7
If you have eSATA, then go with it. It is much, much quicker than USB 3.0.
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post #5 of 7
Thread Starter 
Anybody got any sources of tests putting these against each other. And that point about USB 3.0 being backwards compatible is very convincing.
post #6 of 7
Firewire:
Quote:
...the S3200 FireWire 1394b spec reaches ~400 MB/s (3.2 Gbit/s).
eSATA:
The speed of standard SATA, but for externals from what I understand?
Quote:
USB 3.0's 4.8 Gbit/s and Firewire's future 6.4 Gb/s (768 MB/s) will be faster than eSATA I, but the eSATA version of SATA 6G will operate at 6.0 Gb/s.
USB:
Quote:
A new feature is the "SuperSpeed" bus, which provides a fourth transfer mode at 5.0 Gbit/s. The raw throughput is 4 Gbit/s, and the specification considers it reasonable to achieve 3.2 Gbit/s (0.4 GB/s or 400 MB/s), or more, after protocol overhead.


Here's a comparison:
http://www.crunchgear.com/2010/02/05/esata-is-faster-than-usb-3-0-at-least-right-now/
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post #7 of 7
Quote:
Originally Posted by B!0HaZard;13136843 
Firewire:

eSATA:
The speed of standard SATA, but for externals from what I understand?

USB:



Here's a comparison:
http://www.crunchgear.com/2010/02/05/esata-is-faster-than-usb-3-0-at-least-right-now/

What's interesting is that the crunchgear comparison could not get the WD MyBook 3.0 to work which has a 3.5" platter, compared to the slower Seagate PS110 w/ a 2.5" platter. As can be seen in this review, platter size is significant when comparing external drives:

http://www.tomshardware.com/reviews/usb-3.0-superspeed-external-drive,2670-7.html

I think for non-SSD drives the difference between eSATA and USB 3.0 is negligible when you consider 3.5" drives, as shown in the link above. 141.4 MB/s read AND write throughput is about 17% faster than the Seagate FreeAgent Extreme eSATA in the CrunchGear review linked previously.
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