Upgrade version Dual U.2 SSD to PCIe 4.0 X8 Adapter, Support 2 x U.2 SSD or Soft , without PCI-e Splitter Function (PCIe Bifurcation Motherboard is Required). Dual U.2 to PCIe 4.0 X8 Adapter: By installing 2 x U.2 SSDs on this PCIe 4.0 X8 adapter, your computer will be to access 2 x U.2 SSDs at the same time. Hardware Platform: Support Soft in for /for AMD platform, not support Pro 5.1 (Note:To set up 's -on-CPU (VROC), you need to purchase your license) Set the PCIe Bifurcation mode of the corresponding PCIe slot in the BIOS, support X4X4X4X4 or X4X4X8 or M.2 X16 mode (Note:Can not support X8X4X4 mode) To reach PCIe 4.0 X4 (64Gbps) , the CPU and motherboard PCIe slot and PCIe M.2 SSD should all be PCIe 4.0 features (Note:PCIe 4.0 is not supported on CPUs below 11th generation) Name:Dual U.2 to PCIe 4.0 X8 Adapter OS compatibility:Plug-and-play in 11/10/8/Linux/ OS (Note: Not support 7). The new U.2 SSD needs to be initialized and formatted before it can be recognized by the computer host. Important:Because this adapter does not support PCIe Bifurcation, it requires a motherboard that supports PCIe Bifurcation. Otherwise, only the Port-1 port can recognize the U.2 SSD. Colour:Black Material:PCB Package Contents: 1 * Adapter Card 1 * Long Metal Bracket 1 * Screw Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.