Motherboards with only one PCIe lane

Transcend's PCIe SSD 220S follows NVMe and utilizes the PCIe™ Gen3 x4 interface, meaning four lanes are used for transmitting and receiving data

In addition, the CPU communicates with the chipset through 4 lanes The 2nd slot is connected via this chipset and also the 8 sata ports and

m2 vs nvme slot Manufacturers can use the PCIe lanes to implement other fast components on their motherboards, like Ethernet, Wi-Fi, or additional NVMe

m2 slot Generally speaking, if you install an SSD in the chipset slot, you're going to see it use 2 lanes worth of bandwidth most of the time