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On May 19, 2011, at 9:11 AM, Vic Dura wrote:
USB sticks are much slower than hard disk drives, but 2 minutes seems
excessive. Did you actually time the load with a timer?

The speed of individual USB devices can vary tremendously from painfully slow (5MB/sec) to pretty 
fast (25MB/sec).  To get fast, you must pay a significant premium.  For comparison, your internal 
SATA hard drive is cranking in the 50-100MB/sec range.  

It is a common misunderstanding that flash drives are faster than hard drives.  Even at their best, 
they are limited by the USB connection.  USB2 is not a particularly fast connection compared to a 
decent internal hard drive on SATA and many implementations are weak.  Older Macs, for instance, 
have a terrible USB implementation that maxes out at about 11MB/sec.  It does not matter how fast 
your flash drive is.

Cheers,
                tod

Tod Hopkins
Hillmann & Carr Inc.
todhopkins@hillmanncarr.com




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