What is the difference between an SSD and an NVMe M

What Is NVMe Storage? Understanding the New Industry Standard nvme slot types A SATA SSD slot is a specific type of slot found on motherboards, which is designed to support SATA-based Solid State Drives nvme m2 ssd slot Acer Travelmate P2 TMP214-53, slot type

nvme and m2 slot difference 2 SSDs are keyed at both M and B positions, so they can fit in SATA slots and PCIe , even if they might not work in the latter NVMe SSDs are keyed only