This question already has an answer here:
I've bought a couple of 3.5 inch desktop hard drives for downloads and storage. They are Seagate Expansion which is the “vertical” version. (that means the spinning disc inside is perpendicular to the table surface) I hope you guys know what it is like… it’s so common
However, I have concerns that a desktop drive that is vertical is not good for its health for long term, since it’s not like internal drive that mounted inside the chassis securely… It looks more comfortable for me to see it lies horizontally.
Is it an unnecessary worry?