PCIe X1 to X16 Slot Extension Adapter Add-on Cards & Peripherals

PCIe slots allow your motherboard to connect with your PC's most critical components and provide key functionality

In ASUS 「PCIe x16 Slots - 4」

pcie slot length Two types of PCIe slot on an Asus H81M-K motherboard Various slots on a computer motherboard, from top to bottom: PCI Express x4; PCI Express x16; PCI Express

pcie slot meaning One of my colleagues asked me about “Bifurcation” when it came in a discussion about running multiple NVMe drives from a single PCIe slot