Compatible with Canon 7D and old card reader

Looking for something less expensive memory cards for the EOS 7D I fell through this adapter, from which it was said that he would be fully compatible with Canon EOS cameras and also quick to.

So without further ado ordered the adapter and a 32 GB SDHC card and now tested quickly on functionality:
=> Adapter card and run with me well in the EOS 7D and EOS 30D

The newly ordered is card reader for the PC has not yet arrived and the current is compatible with the pure SDHC card but not here surprised me the adapter:
=> With adapter, the new SDHC card ran well in the elderly card reader

With RAW data, I was on the EOS 7D to 22 images in a first test (then 20 consecutive I did not want to perform) slowed down from the buffer.
With the existing Sandisk Extreme III buffering occurred after 21 images.

Also the video functionality with Full HD (1920 x 1080 x 24) has been successfully tested for 60 seconds short.

Long-term compatibility are still out, but first I want to say:

Thumbs up!