Pro Dual Compact Flash Adapter ExpressCard/34
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Driver (2)
Firmware (0)
Manual (1)
FAQ (13)
IDArticle TitlePost Date
196 Why should users only first eject the adapter and then put the CFs into the slots?Jun-22-09
197 Is it possible to take out just one Compact Flash card and work with the other?Jun-22-09
198 In the side bar of the Mac OS X Finder I sometimes don't get an eject button for a Compact Flash card.Feb-08-10
200 I created a RAID 0 out of two Compact Flash cards and it seem no faster than one card. Why?Jun-22-09
215 Does Nikon Transfer software support the Sonnet Compact Flash Adapter?Feb-08-10
494 I'm having trouble reading two SanDisk Extremes or Extreme Pros, or the system is asking me to format an already-formatted card. Why?Mar-24-10
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. (See our compact flash compatibility on the product page: sonnettech.com/product/produalcfadapterexpress34.html.) SanDisk did not design the Extreme and Extreme Pro to correct ATA specifications. 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). 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. SanDisk Basic, Ultra II, Extreme III and Extreme IV work fine, as do all cards we have tested from Transcend, Lexar and Kingston. For a trouble-free 90MB/sec CF card, we recommend the Lexar Professional 600X or Transcend 600X CF card. If you are not using a SanDisk Extreme or Extreme Pro and are experiencing these problems, contact Sonnet technical support.
 
545 Is the Sonnet Pro Dual CompactFlash Adapter compatible with Camera Bits "Photo Mechanic"?Dec-26-10
628 Why doesn't my Sonnet ExpressCard/34 card work in the Echo ExpressCard/34 Thunderbolt Adapter? It's listed as compatible!Aug-11-17
The Echo ExpressCard/34 Thunderbolt adapter requires Mac OS 10.6.8 or later and supports cards with Thunderbolt technology-aware drivers. Download and install the latest driver to make your card compatible:

eSATA
Sonnet Tempo SATA Pro ExpressCard/34
Sonnet Tempo SATA ExpressCard/34
Sonnet Tempo SATA edge ExpressCard/34

Memory Card Readers
Sonnet SDXC UHS-I Pro Reader/Writer ExpressCard/34
Sonnet Pro Dual CompactFlash Adapter ExpressCard/34

Note: Sonnet FireWire 800 Pro ExpressCard/34, and FireWire/USB ExpressCard/34 cards are compatible without additional drivers. For third-party products listed as compatible, please visit those manufacturer's Websites to get the latest, Thunderbolt technology-aware drivers.
 
650 Does the Pro Dual CompactFlash Adapter support UDMA 7 CompactFlash cards?Mar-27-12
708 I cannot read 64GB or 128GB CF cards in WindowsJan-07-14
778 I have a 17" MacBook Pro 6,1 and my ExpressCard does not work after upgrading to Mavericks.Dec-30-13
832 Qio with PCIe interface Windows has a compatibility issue with the SuperMicro X10DAi.Mar-24-15
A customer reported this in March 2015 and Sonnet is looking at the problem.
 
928 My Qio is not recognizing SxS cards on Windows.Jul-05-18
Your computer may not be fully supported by the Qio BIOS. If you boot with SxS cards inserted into the Qio, it forces allocation of the busses and memory space needed. Some computers will refuse to allocated bus space for later insertion unless two SxS cards are inserted before booting.

If you are having hot plug issues, not basic SxS functionality, you can use CFScan utility to force the Qio to "see" a newly inserted device.