I have a response from Sandisk. Needless to say, I will be testing with my 5D2 ASAP.....
Thanks again for calling SanDisk Technical Support. It is our goal to make sure you have all the resources you need to get the most from your product.
Here is a relevant site with performance specifications of more cards in different devices: http://www.robgalbraith.com/bins/conten ... 0043-10255
The 7D Canon camera is not one of them but as read on a different professional Photographer forum the 7D does not benefit from the UDMA6 specification of the card while the 5D Mk II does.
It is recommended to look for any firmware updates for the 7D camera as that might give you the performance boost you expect.
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