what brand of motherboard has HORIZONTAL slot at NVME

2 slot You can see two standard slots on the PCB, between the PCIe slots These have the mounting holes for horizontally mounting

In addition, NVMe inputoutput operations per second exceeds 1 million and is up to 900% faster compared to AHCI drives NVMe also communicates directly

nvme m2 slot According to the above two pictures, we can make conclusion about SATA vs NVMe vs PCIe SSD: SATA SSD's performance will not exceed 600

nvme m2 slot motherboard 2 slot doesn't guarantee NVMe compatibility was designed to support USB , SATA, and PCIe, and most early slots supported only SATA