Why would a PCIe x16 slot be limited to PCIe x1 card?

By specification, all PCIe cards are backwards compatible with the lowest bandwidth x1 lane slots If the x1 slot is designed with an open end,

function, RAID Setup wizard, operating system installation function, and diagnostic functions PCIe x16 full-height half-length slots, plus 1x OCP slot

pcie x1 slot function PCIe slots are available in four sizes — x1, x4, x8, and x16 — based on how many individual PCIe lanes run to and from that slot A PCIe x1 slot

pcie 4 gpu in pcie 3 slot HL PCIE x1 30cm data transfer function lines compatible with all types of interface computer equipment pci-e slot stable · Shipping: US $ · Estimated