Built-in PCI Express X16 4.0 PCIE4.0 to SFF-8654 8I Slim SAS Adapter 2*SFF-8654 8I to PCI-E X8X8 Baseplate +2* SFF-8654 8I to SFF-8654 8I 70CM Intersection Cable

["Requires motherboard and BIOS support bifurcation","2.Motherboards and BIOS MUST support bifurcation otherwise only first drive can be recognized.","2xSFF-8654-8i outputs, achieving PCIe 4x,8x,or16x extension or adaptation, used for external U.2 NVMe drive enclosures and external GPU extension.",".The PCB uses Tg170 material, reducing data transmission loss, ensuring no speed or bandwidth drop.","Gen4 PCIe4.0, compatible with Gen3 FOR graphics card network card U.2 Gen4 NVMe SSD"]