Mounts to the side of the CR-10 control box (using stock screws) to hold a MicroSD to SD card expansion cable and adapter. Helps avoid damage to the MicroSD card socket in the control box and allows use of a full size SD card. Protects the cable and card slot also.
Works with this product from Amazon http://a.co/4kNZiRn.
The enclosure does block the USB port. I've included the Solidworks file for anyone to edit.
Print with the outer surface (right side surface) down on the printer bed plate so you don't need any supports.
I printed in ABS, but you'll be fine with PLA.