PCIe x4 vs x16 for single NVMe SSD speed increase?

SSDs come in various sizes and shapes, but the most common types of slots are M key and B+M key While both

The PCIe SSD needs a PCI Express* x4 or higher connector Best performance is with a PCIe connector PCIe* slots In our example: Install the PCIe

m2 slot mainboard 2 PCI-E SSD , such as Samsung 950 Pro or Samsung SM 951, to a PC with a PCI Express x4 expansion slot You can attach the PCI-E drive directly to the

m2 vs nvme slot There are adapters that have 2 or 4 NVME drives that will run at 8x 16x but don't bother with these since they require bifurcation and ones