Can someone explain me the PCI-E slot variations & sizes of

How Many PCIe Lanes Do I Have? pcie slot size 1 slot = 20mm, with the width of 110mm pcie 20 x1 slot Verilux® NVME Adapter PCIe x16 with Gel Pad, NVME or AHCI SSD to PCIE Adapter Card for Key M 2230, 2242, 2260, 2280 Size SSD, Support PCIe x4 x8

pcie x16 expansion slot PCIe slot refers to the physical size of PCI Express By and large For example, PCIe x1 is 25 mm in length, while PCIe x16 is 89 mm