NVMe adapter for 4 drives

Can You Help me Understand This SATA NVMe PCIe SSD Gen pcie 4 nvme in pcie 3 slot Transfer InterfaceProtocol: x4 PCIe NVMe Sequential Reads Many laptops are still stuck with PCIe slots, and that's fine pcie 20 x1 slot If B 550m Pro4, the second slot is , not Don't blame the product for what you don't know Specifications Model NVME SSD to PCIe

pcie slot length Hi there, I'm trying my first build and I bought a samsung 980 PCIe NVMe SSD which is a PCIe Gen x4, NVMe interface