What is PCIe x16 Slot

PCI Express X16 Graphics Card - pcie x 16 slot PCIe boards can fit into slots designed for their lane configuration or higher Plugging a x4 PCIe into a x16 slot is acceptable pcie slot gpu A x8 card will work in an x1 slot, but will be limited to x1 speeds A x8 card will also work fine in a x4 slot It will be limited to x4 speeds

pcie 4 in pcie 3 slot ssd Intel LGA 2066 ATX motherboard with DDR4 4133MHz, dual and heatsink, , USB Gen 2 connectors, ASMB9-iKVM and ASUS Control Center