Feedback from UREACH... 
It is not bi-directional.
We have two kinds of designs to support Cfast copy.
One of them is our CF duplicator.
http://www.ureach-inc.com/product/goods_detail.php?goods_id=71
As you see, the sockets on the machine is changeable.
To support Cfast copy, just change the socket to Cfast will be OK.
This machine can support up to 3.9GB/min read/write speed.

It is not bi-directional.
We have two kinds of designs to support Cfast copy.
One of them is our CF duplicator.
http://www.ureach-inc.com/product/goods_detail.php?goods_id=71
As you see, the sockets on the machine is changeable.
To support Cfast copy, just change the socket to Cfast will be OK.
This machine can support up to 3.9GB/min read/write speed.