I am not too much of an expert on enterprise hardware, but those are PCIe interface. I don’t know how possible it is to rack up 24 of those in a single server (you would run out of lanes).

This is something more similar to what is in those Dell servers (and there are 24 of them):

https://www.newegg.com/samsung-pm1643a-7-68tb/p/2U3-0005-000...

https://www.newegg.com/p/0N7-0133-00003

There is certainly a markup with Dell, but it’s sort of like a cloud vendor - pay for the warranty and service, and be (somewhat) hands off if something breaks.