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If I understand my memory cards - the class 6 SDHC promises a minimum data transfer of 6mb/s. Class 4 - 4mb/s.
The CF cards - assuming solid state - can get to higher than that. Of course it would depend on brand and specifications of the individual unit.
I consider the adapter useful only in the case that you either don't have a CF card and have multitudes of SD cards.....or your 1st SD card is too integral to your unit's operation that you cannot switch out SD cards.
Is that the case?
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