Summary

An SSD holder for the Zimablade: https://shop.zimaboard.com/products/zimablade-single-board-server-for-cyber-native
Clip design allows SSDs or HDDs to stay in place without screws. That being said, screw holes are provided, but you will need at least M3x6mm screws to secure in place.
The cut extrude on the bottom is used to help push out the SSD/HDD.

ZimaBlade Cover Slot Adapter needed for this to work
I edited the ZimaBlade clear cover and just slots in them. Just like you had to install RAM into the ZimaBlade, you have to take the cover off. This time, install this version instead.

MULTIPLE VERSIONS AVAILABLE

7mm Slot: Meant for SSDs. Tested on Samsung and Silicon Power SSDs. There are Single and Dual Slot versions.
9mm Slot: Fits the slim spinning HDDs in 2.5" form factor. Tested on a few hard drives I had. There are Single and Dual Slot versions.
15mm Slot: NEVER TESTED. I don't own a hard drive like this, I just saw they exist. There are Single and Dual Slot versions.
Dual 7mm+9mm Slot: For an SSD and HDD combo.
Dual 7mm+15mm Slot: I am not sure why but I made it.

Other Thoughts
I like the ZimaBlade for its small form factor, so when adding storage I wanted to keep that small form factor. Since I am putting the SSDs on the side of the RAM, the design does not interfere with the heatsink.

Print Settings

Printer Brand:

Bambulabs

                                            Printer:                      
Bambu X1C

Rafts:

                                            Supports:                      
Yes

Resolution:

0.20mm

                                            Infill:                      
15% --- does not really matter

Filament: doesn't matter PLA, ABS --- I have tried on these and they worked.

How I Designed This

ZimaBlade Cover Slot Adapter Notes

            The ZimaBlade Cover Slot Adapter is based on the CAD Files posted by this forum:
https://icewhale.community/t/3d-model-resources-for-icewhale-products/266

in which IceWhale provided: https://drive.google.com/drive/folders/1gz0LgXefWn3B2nVhjxuAu1IIxc6hp5UO?usp=sharing

To be honest, I just put slots on it. If you want to make other add-ons to this here are the dimensions I used for the slots.

            Slot Design
                
            This is the height of the slot. I added a chamfer on mine to make it easier to take out if needed.