4 x 4 slot ✓ Flex 1U4 Rackmount Thunderbolt + PCIe Slot (Softraid for

The following image shows the PCI connections of the motherboard used in DuroPC's IMB540-4 Notice 'SLOT 13' are PCIe x16 slots but only Slot 3 has an x84 x 4 slot,Sonnet 4x4 and McFiver PCIe Cards

The number after x tells you how 2 NVMe slot requires 4 PCIe lanes, and as a result, the smallest one available requires a x4 PCIe slot 4 x 4 slot,PCIe boards can fit into slots designed for their lane configuration or higher Plugging a x4 PCIe into a x16 slot is acceptable

4 x 4 slot,Shop PCI-Express x4 Internal SSDs on Watch for amazing 4 Lanes Internal Solid State Drive WDS100T3X0E $$; $74