On 08/06/2007, at 11:01 AM, Geoff Richards wrote:

in my tests using apples activity monitor
copying a 1 gig folder from the internal IDE drive in a G4 mac
to an external IDE drive case:

usb2 480 case: 15 Mbytes /sec

firewire 400 case: 29 Mbytes /sec

also...
http://www.barefeats.com/usb2.html

-geoff



Yep :   That story has been known for some time .
It has something to do with USB transferring info via packets ,
so you end up with packets and gaps.

Bob


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