Another stupidly noisy bifurcated card.
Why not something simple like:
Great cards ( have stack of them), just watch out for little diodes next to the M.2 connector. If you have 2 sided 4TB NVMe Gen.4 Phison controller devices it will be tough to plug them, but not impossible. Just careful.
I love OWC Accelsior 8M.2, but pricing & importing to EU is so meh.
That one doesn't has hardware raid either, so it has the same problem.
Not in workstaton or server systems where there is plenty of PCIe x16 slots and lanes. This product, without PCIe switch chip onboard, is more aimed towards those systems rather than desktop.
The problem isn't the PCIe lanes, the real problem is that doesn't has hardware RAID, if the BIOS and or the motherboard crashes, so your RAID goes as well.