This is completely wrong and i will not suggest anyone to hide your paper wallet in a SSD.
For long term this is not recommended because if SSD has no electricity for a long time, the data inside can be erased.
Try to hide your paper wallet somewhere where you think that nobody will touch, or will have no idea about that place.
you can run your ssd on a different network, or even without any connection, just so it remain active with electricity and all
it would still be a cold storage, last time i've checked could storage mean only off line, not switched off completely
For this case HDD are better rather than SSD,
Because they can stay longer if you don't touch them.
I would suggest the OP to hide the paperwallet inside computer loudspeakers
Problem with that and many of the other conceal ideas is if there is a fire/act of god. If you only work on concealment your paper wallet is subject to many things out of your control.
If using one really renting a safty deposit box at a bank is worth it depending on your holdings. Much more secure and a great place to keep a backup.
I don't know if we should pay any bank fee to save safety a box.
If it is really cheap then why not, but anyways i would make at least 3 backups.
We never now maybe one day banks will be closed and i doubt we can access to our stuff.