SSD storage instead of microSD?

[astrotater]

Erellaz, you mention in the hardware section of the seisberry that "one internal micro SD for the Linux OS; two external Micro SD memory to store the seismic data in raw format and Miniseed / Segy" are needed.
Is it possible to instead use an SSD drive instead of 3 separate microSD cards?
Either a USB SATA SSD with a Pi3b or a new Pi5 with an NVME?

[erellaz]

I have used SSD for data storage, no problem. Anything you can NFS mount on the Raspberry will do. If you wanted to mount a network storage, that would work.
Now I think the Raspberry OS needs to be on the one internal SD card of the Raspberry, it is at least the simplest way to install the OS.