Are UAD-2 cards supported on PCIe x4 or x16 slots?

Can PCI-E 1x go into a PCI-E 4x slot? - 4x pcie slot The PCI 4 slot expansion box makes it possible to expand your systems PCI slot availability by adding 4 additional slots Very easy to install and connect, the 4x4 joker slot PCI-e 1X4X Open Back Card to M Key 4 Lane PCIe Slot Adapter Micro SATA Cables PN # M2-921-1X4X

4x8 slot car layouts If that's the case I would install it in the second PCIe x16 slot PCIe links are also full duplex so a PCIe 4x will be fine with a