PCIe vs PCIe NVMe SSDs: What's the difference?

What is a NVMe SSD and How Fast is it? nvme slot vs m 2 2 slot doesn't guarantee NVMe compatibility was designed to support USB , SATA, and PCIe, and most early slots supported only SATA nvme vs m2 slot osnsistent SSDs M2 boost the everyday computing experience in your desktop or laptop PC Improved performance for everyday computing With the performance boost

nvme 40 in 30 slot 2 standard contains variants with up to four PCIe lanes, one SATA 6 Gbs and or one USB port So it is possible to connect PCIe as well as SATA SSDs