Organelle USB won't connect to my Macbook Pro

I just got my organelle today in the mail. The Organelle’s USB won’t connect to my Macbook Pro when I log it in. I currently have OS X Yosemite. Why won’t it connect?

If you mean USB stick from Organelle: have you got it wrong way up? (As in different way up from Organelle with connector exposed).

@max The USB drive may need to be flipped over in your Macbook Pro:

Here is a PDF with more information about the Organelle’s removable media.

Yeah I had it in the wrong way, haha! Thanks guys!