I wanted to save my card reader on my Ender but every file I printed didn't fit or it would not hold the SD reader I bought. So here it is, a card reader that and STL file that will hold it. This will allow you to use SC cards and micro SD cards. The only down side is a SD card has to be in it when the Ender is turned on only on some models. This is due to it looks of the card on start up, if not there it is looking for the SC card switch to unmake and re-close. This covers the usb port to keep platsic out of it.

The two screws on the left will hold this in place. The plastic cover on the reader just pops off and will slide in to this once printed.

LANMU Micro SD to SD Card Male to Female Extension Cable Adapter, Flexible Extender Compatible with Ender 3 Pro/Ender 3/Ender 3 V2/Ender 5/Monoprice Mini/Anet A8 3D Printer/Raspberry Pi (5.9in/15cm)