USB hard drive speed?

D

DellAxim

Gawd
Joined
Feb 14, 2003
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I know that IDE is rated for 133mb/s, and USB 2.0 is rated at 480mb/s....does that mean an IDE hard drive in a USB 2.0 enclosure will be just as fast as one hooked to an IDE port on your motherboard?
 
defakto said:
In theory, yes, in practice, not usually.
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Nope, not even close. IDE (no matter PATA or SATA) is always faster than a USB 1.1/2.0 drive would EVER be. It's 480 Mbps not 480 MB/sec. Not even Ultra-wide scsi 320 can do that.
 
kenham40 said:
Nope, not even close. IDE (no matter PATA or SATA) is always faster than a USB 1.1/2.0 drive would EVER be. It's 480 Mbps not 480 MB/sec. Not even Ultra-wide scsi 320 can do that.
Click to expand...
right, which works out to 60MB/s if I remember right
you'll actually see more like 40MB/s, so no, it won't be anywhere close to the same speed
 
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