I don't have this, but I do have his other device which allows you to load up ADF images from your PC using a USB device:
http://lotharek.pl/4/product/info/4Which I'm not a huge fan of. At first it worked, then I put it in storage, took it out to use again, and could only get it to work with 1 image, then it stopped all together claiming that all my images were corrupt.
I sent it back, he said it was fine and sent me another one and even paid shipping back.
The new one works, but I still find ADF images that it claims are corrupt, but work fine with UAE, RAD:, and so forth. So on that note I will say his customer support was great, but the device seems touchy.
I asked him why it would see ADF files as being corrupt that seem to work with everything else, but he never offered a theory.
Hopefully this SD device is less touchy.