PCIe x1 x4 cards in x16 slot

Other PCIE slots are x16 physically, but they all operate as x1 electrically With that said, if I put my HBA to the x1 slot, what

PCI Express X1 to X16 Low Profile Slot Extension Adapter - PCIe x1 to x16 Adapter - PCIe x1 to PCIe x16 slot adapter

pcie m2 slot However, there is usually a cost increase incurred with higher lane counts PCIe Slot Differences Photo from 20050531pci-express-cards

pcie 4 in pcie 3 slot ssd x1 male 90° angled to x1 slot 90° angled with cable 60 cm Item No : 88043 88047 Delock Riser Card PCI Express x1 male to x16 slot with cable 20 cm