• I can’t fathom a good reason for 4TB SD cards.

    Most cameras have CF Express which is probably 5-8 times faster.

    Even UHS-III is 600MB/s while CF Express Type B is hitting 4GB/s.

    Even so, why would you risk 4TB of data on removable storage.

    CF Express is also running PCI-E. This article isn’t talking about SD Express.

        • It’s good for offloading things that otherwise eat useful fast storage.

          For example, OneNote uses a cache and a backup folder. So whatever size your notebook is, it will consume 3x that storage space.

          I use the SD slot for the cache and backup folders (my backup folder is synced to a file server, so I don’t need it locally, and in 15 years of using OneNote, I’ve needed that backup one time).

          It’s also useful for temporary stuff that you don’t care about/is available elsewhere. I’ll pull large installers from my file server and put them on the SD, until l I get around to using them (laptop drive is 250, which is tight for me, and the SD was a quick, dirty solution since I have a bunch of micro SD’s from phones over the years).

    • If you set it up properly (like using apps to sync folders) a big enough sd is like local “cloud” service.

      I was thinking about it recently, after my phone data were very close to being deleted (I managed to prevent it eventually), I was angry at how not having an sd slot caused me so many issues. If I had a 1tb sd I would just autosync app backups and files to my card and not worry ~at all about losing data from bootloops etc.