Since I use a few SD cards to shuttling files to the printer, I made a "holster" for them. One ot the pictures shows the itterations it took to get to the final version. Just like a SD card snaps into it's slot this holster also has a snap-in feature so that they stay put. As you see it's designed to fit at the lower right corner of a Makerbot 2X. One of the other pictures is a screen shot of the simplify3D slicing software interface. It shows where I placed two towers of support for each of the two slots.

MakerBot

MakerBot Replicator 2X

No

Yes

.3 MM

20%

To mount it you'll probably need to get a longer screw like a 6 MM x 12 MM socket head cap screw from a local hardware/home improvement store. The Makerbot original screw are only 8 MM long. The hex socket should be same size as the original.