The deal with vs NVMe vs SSD vs SATA vs AHCI etc

The communication drivers and interface between NVMe and SATA are completely different as SATA uses AHCI drivers that are designed for hard disk drives

SATA-based, PCIe-based with NVMe support, or PCIe-based without NVMe support SSDs are all available An SSD with NVMe compatibility has up to five times

m2 vs nvme slot is a slot that can interface with SATA , PCI Express

m2 slot screw 2 SSD and Toshiba RC100 NVME SSD, are respectively corresponding to PCIE NVME, SATA AHCI and PCIE NVME interfaces That is to say, the two