PCI Express x4 slot running at x1

pciex4 slot   Dan snow slot

Hi Can someone help me understand what PCIe x4 Slot means?

1 x key-M slot for PCIe x4 Gen 4 1 x 2230 for WIFI PCIe 1 x FAN LED, 2 x POWER LED Ethernet, Intel 1010010002500 Mbps RJ45 PCIe x16 to four PCIe x4 Slots 摺疊 PCIe Docking, PCIe Docking · PCIe x4 to PCIe x1 Slot · PCIe x4 to PCIe x4 Slot · PCIe x4 to PCIe x8

dino 69 slot link alternatif If any of the PCI Express slots could be considered a “sleeper”, it's probably the x4 slot The x4 slot is largely relegated to upgraded versions of x1 slots and one open-ended PCIe x4 slot instead of a fixed PCIe x1, allowing for flexibility in supporting various PCIe add-on cards as they become available