I want to understand how PCIe lanes are shared on my motherboard

2 slots will support both SATA and NVMe SSDs Make sure to check what SSD technology your motherboard can support Advantages:

Drives that use NVMe were introduced in 2013 to attach to the Peripheral Component Interconnect Express slot directly on a motherboard

m2 pcie slot The number of links, or lanes, is denoted on PCIe expansion slots and PCIe slots by affixing an “x” followed by the number of links to the

m2 nvme slot Eight NVMe SSD slots on a PCIe x16 card Add your own SSDs For Mac, Windows, and Linux