I would like to understand the Latitude 5400 storage options.

From what I have read, there is an M.2 slot (NVMe/SATA) and a standard 2.5" (SATA) connection but that you can only use one of those at a time. I am guessing the limitation would be due to physical space.

I also read that the WWAN port can be used with an SSD but that the system can only have one NVMe drive. So, if I already have an NVMe SSD in the M.2 port, the WWAN drive would need to be SATA.

Can anyone confirm those points?