I loved the idea of these boxes from 2D Printing Enthusiast but for my needs the boxes need to be protect the nvme drives in addition to storing them, so I closed in all the gaps and added front and back walls to both models.  I also used the suggestion from 2D Printing Enthusiast but cutting one of the models at 3mm to create a lid.  The lid is included in this.  I'll be uploading pictures once I print them out.