Inconspicuous microSD card adapter for MacBook Pro

I know this is an old question but I just found it via a Google search. Check out the Nifty MiniDrive which is exactly what you are describing.

http://www.kickstarter.com/projects/1342319572/the-nifty-minidrive


Check out this low profile micro SD card reader for the Raspberry Pi computer: http://www.adafruit.com/products/966

$6 versus $25 for the Kickstarter polished Nifty Drive (I actually bought one for a friend).


I think the Nifty MiniDrive might be exactly what you're looking for:

http://www.kickstarter.com/projects/1342319572/the-nifty-minidrive