I’m looking to get a new internal hard drive for a specific use case:
- it’s for a desktop, meaning I can fit either
- i need 2TB, no more and no less, also meaning I can get either
- it’s for my media collection, mostly movies
- it’s not gonna be read-only, but I wouldn’t write too often (I would torrent, but all the program’s metadata would be on another drive)
- most likely gonna be formatted with btrfs (subject to change, open to suggestion)
Should I get the 2.5 inch or the 3.5 one?
Thanks in advance.

If you have the space and mountings in the case then 3.5 naturally. larger drive offers more bang for the buck and that’s the most important part when thinking about bulk storage after, storage size and reliability. Things like reliability, noise, write and read speed are more of a question about the model and manufacturer, not the drive dimensions. IMO things like energy consumption when thinking about hard-drives in a PC build are irrelevant, but there 2.5 inch might shine.
Not sure about the bang for the buck, as the 3.5 tend to be more expensive where I’m at. Worry not, tho, I won’t be a cheapskate for when it matters.
As for the size, I’m looking for exactly the 2TB one, for which there’s no issue in finding either.
As for the manufacturer, I’m leaning more toward Seagate, which have both types. I already have a few from them, one of which is a 2TB 2.5 HDD for a laptop, which I’m happy with. This one will be for my desktop.