Dual U.2 (SFF-8639) to PCIe 4.0 x8 Adapter Card - Compatible with Servers/NAS/Desktop Storage Systems

It does not support SAS or SATA SSD.
Motherboards and BIOS MUST support bifurcation otherwise only first drive can be recognized.
Simplify system builds with a U.2 to PCIe adapter that mounts your SSD directly to the adapter with no need for adapter cables.
This card must be connected to the device on the motherboard before booting up, and it does not support plug and play or hot swapping.The new U.2 SSD needs to be initialized and formatted before it can be recognized by the computer host.
Based on PCIe x8 lanes, with ample bandwidth, it can fully unleash the potential of U.2 devices, significantly increasing sequential read and write speeds, providing a guarantee for big data processing and high-speed storage.