SD Card Holder - 12 cards

The base to this SD card holder will accept 12 cards. There is a chamfer in the bottom of the card slots that causes cards to "stand-up" by 3.3mm when inserted the wrong way round.

There are two designs of cap, the tall 't' version should close with cards in slots the wrong way round where the other design will not.

The design (and in the photos) the cover is retained by two socket caps screws but there is no reason why a pin of metal of carbon fibre rod should not be used as a hinge pi