SSD nvme for Precision 5820.

Good evening, I purchased a 5820 workstation with a Dell Ultra-Speed Drive Quad and a 1TB NVMe Class 50 drive, which is configured as a bootable disk. In the future I plan to add another 512GB card to the Dell Ultra-Speed and that's my question. Won't I have compatibility issues if the SSDs have different storage capacities?
I think about this because in a few years the M.2 SSDs will certainly be the standard to replace the HDDs and I would like to keep my Dell Ultra-Speed Quad compatible.

I'm going to take the opportunity to go a little further, as I bought this workstation with a view to having it for many years to come. Will it also support the new Quadro video cards?

My 5820 has the 950W Chassis.

Thank you very much.


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