On 6 Jul 2005 at 6:55, Godfrey DiGiorgi wrote: > I do expect some performance degradation ... one review on a similar > product I read suggested about 14-15% reduction in speed using the SD- > CF adapter in a CF USB 2.0 reader vs using the SD in an SD USB 2.0 > reader ... but in an *ist D you'd probably never notice it.
I just ran HD Tune 2.00 using a SanDisk Ultra II card in my USB 2.0 reader with and without the adaptor, results follow: HD Tune: USB2.0 SD/MMC card Benchmark Transfer Rate Minimum : 4.9 MB/sec Transfer Rate Maximum : 6.3 MB/sec Transfer Rate Average : 5.2 MB/sec Access Time : 15.3 ms Burst Rate : 5.8 MB/sec HD Tune: USB2.0 CompactFlashCard Benchmark Transfer Rate Minimum : 3.5 MB/sec Transfer Rate Maximum : 3.7 MB/sec Transfer Rate Average : 3.6 MB/sec Access Time : 15.9 ms Burst Rate : 3.7 MB/sec So yes you were correct the adaptor has a significant effect on the transfer speed of the card but fortunately it's still twice as fast as the *ist D data I/O system. Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
