I inserted an NVME SSD in a SATA slot on a motherboard

vs PCIe vs SATA SSDs: What's the Difference? sata m 2 slot In practice, the SATA SSDs I've come across always have two notches in their connector They are 'B and M keyed' as per the standard In sata slot 2 PCIe SSDs are generally faster than SATA SSDs, as they use the PCIe interface that offers higher bandwidth and faster data transfer rates

sata 3 slot SATA: This option uses the AHCI driver and routes to a SATA port via the connector It is slow, but widely compatible AHCI: Advanced Host Controller