SanDisk Basic, Ultra II, Extreme III and Extreme IV work fine, as do all cards we have tested from Transcend, Lexar and Kingston. You should be able to read the Extreme and Extreme Pro one at a time from the upper slot, but be sure that the lower slot is empty. These two Sandisk models can be used as a master ATA device (CR reader upper slot), but not reliably as a slave device (CF Reader lower slot). (See our compact flash compatibility on the product page: /product/produalcfadapterexpress34.html.) SanDisk did not design the Extreme and Extreme Pro to correct ATA specifications. The SanDisk Extreme and Extreme Pro CF cards have design issues that prevent them from working in a dual-card reader in both Mac OS X and Windows. I'm having trouble reading two SanDisk Extremes or Extreme Pros, or the system is asking me to format an already-formatted card. Why?ĭoes Nikon Transfer software support the Sonnet Compact Flash Adapter? I created a RAID 0 out of two Compact Flash cards and it seem no faster than one card. In the side bar of the Mac OS X Finder I sometimes don't get an eject button for a Compact Flash card.

Is it possible to take out just one Compact Flash card and work with the other? Why should users only first eject the adapter and then put the CFs into the slots? Installation instructions for installing the Sonnet Pro Dual CompactFlash Adapter ExpressCard/34 Dual-slot CF Memory Card Reader & Writer Adapter into a supported Mac or Windows computer. File Name: pro_dual_cf_adptr_ec34_qsg.pdfĭocument Version: QS-CFRW2X-E34-E-A-101408

Apple compact flash reader