What Are PCIe Slots And How Can I Use Them in My PC -

No, this card does use 32 actual lanes from the host X32 is in the specs, it just obviously doesn't exist on consumer boards

PCI and PCIe slots PCIe: This slot comes in 7 versions: x1, x2, x4, x8, x12, x16 and x32, corresponding to 1248121632 lanes respectively

pcie 8x slot PCI Express® Version: PCIe® Native PCIe® Lanes : 28 , 24 Additional Usable PCIe Lanes from Motherboard X670E 12x Gen4 X670 12x Gen4

pcie 20 x1 slot Not to be confused with PCI Express Although the Adaptec SCSI Card 29160 is a 64-bit PCI card, it also works in a 32-bit PCI slot