All Types Of PCIe Slots Explained & Compared

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

The Matrox PCI and PCIe technology guide explores the importance of evaluating different slot types when buying add-in graphics cards

pcie slot configuration gen1 gen2 gen3 Card capacity and size · Slot 1: gen 4, up to x16 lanes · Slot 2: gen 4,up to x16 lanes · Slot 3: gen 4, up to x8 lanes

pciex1_1 slot So, there is no singular PCI Express slot There are actually four sizes : PCI Express x1, PCI Express x4, PCI Express x8, and PCI Express x16