Hello

I purchased 2 years ago this XPS 8900, 

I'm looking to upgrade my hard drive (2TB) which is partitioned to a SSD. I read about SATA SSD, and M.2 SSD

On the Motherboard on the PC, i see a M.2 Slot as shown below. I read many contradictory stories about what can and can't be done.

Can anyone at DELL or elsewhere tell me if i can add a SSD drive to replace by C drive (boot) and if yes, what specs should i go with?

Does this only support M.2 Sata or MVME ?