Explore the Different Types of SSDs: SATA, NVMe, , , and PCIe

I'm now inclined to think the slot is not backwards compatible with SATA drives (or at least I can't find anyone in the Dell community

The designation simply refers to a form factor for an SSD, and it is not inherently better than other types of SSDs like SATA or PCIe

m2 slot screw On your board, only one slot is connected to the chipset, M2_1, so it should be easy to find out which drive is in that bus with HWiNFO64 Two

m2 slot There are two types of SSDs: SATA and NVMe SATA uses an older interface with one designed around hard drives while NVMe is designed for flash memory