MXITM-Express Gen II x8 - farnell.com
PCIe x16 Expansion Backplane. Requires an target adapter card in the host interface card slot. The PCIe x16 Gen 3 2-slot backplane supports up to a PCIe x1/ x4/ x8/ x16 Gen3 add-in Card.
what is a pci express x1 slot H5-jun 88 tv - jun-88-tvvi.com
You can mount, for instance, a PCIe x1 sound card in a PCIe x16 slot, but you cannot mount a PCIe x16 graphics card in a PCIe x1 slot.
HP Desktop PCs - Motherboard Specifications, Cambridge
North Bridge, Intel C621A ; Expansion Slots. PCI Express 4.0 x16, Slot_6: 1 x PCIe x16 (Gen4 x16 bus) slot, from CPU_0 Slot_5: 1 x PCIe x16 (Gen4 x16 bus) slot, ...