A:AnswerHey Diane, I’ve used it to download from scan disk extreme III, ultra, and pro. Have had zero issues. Transfers were fast and smooth. These were all CF cards. I wouldn’t foresee an issue. Hope this helps.
A:AnswerCheck to make sure the tiny lock slider at the top left portion (viewed from the front) of the memory card is not DOWN in the lock position.
As long as that is up (unlocked) I have never had an issue. Also, check your connection on the card reader.
You may need a new card reader.
A:AnswerI don’t use iMac, but I believe that info is in the specifications when your looking. I thought it showed it was compatible with either but don’t quote me. Hope this helps.
