https://www.amazon.com/gp/product/B015CQ8DCS/   IOMMU Group [10b5:8609] 41:00.0 PCI bridge: PLX Technology, Inc. PEX 8609 8-lane, 8-Port PCI Express Gen 2 (5.0 GT/s) Switch with DMA (rev ba) [10b5:8609] 41:00.1 System peripheral: PLX Technology, Inc. PEX 8609 8-lane, 8-Port PCI Express Gen 2 (5.0 GT/s) Switch with DMA (rev ba) [10b5:8609] 42:01.0 PCI bridge: PLX Technology, Inc. PEX 8609 8-lane, 8-Port PCI Express Gen 2 (5.0 GT/s) Switch with DMA (rev ba) [10b5:8609] 42:05.0