List of Motherboards with 2 PCI-Express x1 Slots

List of Motherboards with 2 PCI-Express x1 Slots x1 pcie slot PCIe x1 slots replace the standard PCI port and are about 1 inch long They move data on and off the motherboard at up to 250 MBps in x1 slot Dell XPS 8700 comes with a one PCIe x4 slot on the systemboard You can refer to picture below for it

x1 slot 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,

x1 pcie slot List of Motherboards with 3 PCI-Express x1 Slots: MSI PRO Z790-S WiFi, ASRock Z790 PG LIGHTNING, ASRock Z790 PG LightningD4, MSI PRO B660-A DDR4, 1 additional PCI-Express x1 slot is needed