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This is a discussion on Interfaces within the Hard Drive Support forums, part of the Tech Support Forum category. Simple question... I've been planning on purchasing an SATA PCMCIA ad-on card for my laptop. Along with it will come


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Old 06-05-2005, 01:44 PM   #1
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Simple question...

I've been planning on purchasing an SATA PCMCIA ad-on card for my laptop. Along with it will come a hard drive enclosure for my WD Raptor. It's just a little experiment to see how fast an external hard drive can be. I know SATA is extremely fast, but I just want to clarify that it is faster than USB or IEEE1394 external enclosures. With the SATA card and enclosure I know speeds in excess of 60Mb/s can be reached. What is the bandwidth of Firewire and USB?
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Old 06-06-2005, 04:00 PM   #2
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SATA is 150 megabytes/second, and the fastest of the Firewire (IEE1394)/USB interfaces is 800 megabits/second, so SATA has faster transfer than any of them.

SATA: 150mbyte/sec (1200mbit/sec)
USB 2.0: 60mbyte/sec (480mbit/sec)
IEE1394a 50mbyte/sec (400mbit/sec)
IEE1394b 100mbyte/sec (800mbit/sec)

Note that these are raw maximum transfer rates, in real life you won't get anywhere close.
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Old 06-07-2005, 04:22 AM   #3
 
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