I always leave the power cables connected to the hard drives, when I store them away.
The cable I roll around the power plug in the hope they do not cuddle and muddle up over time.
Unfortunately cables are a bit like snakes and I am sure they are alive;
There is just no other way to explain the chaos with all the knots they get into after a year of plain storage.
Thats even true for the neatly rolled up cables around the power plugs, doh.
In German we have a word describing that state of entropic cable chaos (not that German has a specific word for everything .... )
- we call it Kabelsalat, literally "cable salad"- Bon Appetit 🤓.