Types of PCIe Slots PCle Lanes

Add up to four NVMe SSDs using only one PCIe slot ⦁ Designed for use with 2280 form factor SSDs ⦁ Compatible with PCIe motherboards and backward

As PCIe slots can be configured with one lane or multiples of four lanes, such as x1, x4, x8, x16, this means that a PCIe x4 interface can

pcie nvme slot x16 PCIe slot supporting x8 PCIe Gen4 Key M slot with x4 PCIe Gen4 x4 + 3 x1 USB*, USB Type-C connector

pcie 50 x16 slot PCIe x2USB USB AudioPCMIUMSSICI2C Note: SSDs using the PCIe x4 bus use M-keys since it is the only one that supports PCIe x4 lanes