Buy PCI Express X1 to X16 Low Profile Slot Extension

There are two possible meanings for PCIe1: PCIe and PCIe x1 PCIe refers to any PCIe slot which uses the first version of the PCIe

What are PCIe x1 Slots Used For? A PCIe x1 slot is used to plug in low-demanding PCIe expansion cards that do not have a very high throughput

pcle slot Expansion-Box with 4x PCIe x1 Slots and PCIe x2 Host Card, for short cards up to 20cm

pcle x1 slot Most of dual NICs need an x4 PCIe slot The end result would look like this picture : The only doubt