Q: camera connection kit

NIKON D40 supports both, I have the camera now with the mass storage configuration but I have tried both. Still the same, nothing happens.

I re-format the sd, using the camera, then I take a photo for the right folder recognition. The SD card is working well on my iMAC... I will try a few more things, but I think that the adaptor have a fail in it. I will change the cable and then,I will send the results for documentation.

EUREKA! Cable problem, it seems that it is a poor quality cable. Thanks a lot for your interest.

TIPS&TRICKS:

1. Always test the cables 
2. Don´t buy 1$ cables
3. Have a spare at hand