Razer Core X with PCIe card that supports up to 4 NVME drives

[bitnaut]

I have an old Core X lying around from my eGPU days and thought I could re-purpose it by putting in a 4 NVME M.2 PCIe card. Well, I first added a Samsung 970 EVO 2TB NVME and it works fine. Later, I aquired a WD Black 2TB NVME and put it on the card along with the Samsung. Now my Mac Studio Ultra doesn't see the second NVME...is this a driver problem or does macOS Sonoma not work with multiple NVMEs on a single PCIe card?

 

[StuAff]

I have an old Core X lying around from my eGPU days and thought I could re-purpose it by putting in a 4 NVME M.2 PCIe card. Well, I first added a Samsung 970 EVO 2TB NVME and it works fine. Later, I aquired a WD Black 2TB NVME and put it on the card along with the Samsung. Now my Mac Studio Ultra doesn't see the second NVME...is this a driver problem or does macOS Sonoma not work with multiple NVMEs on a single PCIe card?

What card? At a guess, you'd need to use something like the Sonnet 4x4 card, or the OWC equivalent, that don't require a motherboard with bifurcation support.

 

[bitnaut]

What card? At a guess, you'd need to use something like the Sonnet 4x4 card, or the OWC equivalent, that don't require a motherboard with bifurcation support.

4x nvme pcie card Ah ok…I just need a better pcie card.

 

[joevt]

4x nvme pcie card Ah ok…I just need a better pcie card.

Yup. https://forums.macrumors.com/threads/pcie-ssds-nvme-ahci.2146725/
Search for PCIe x8 & x16 switch cards
Thunderbolt will limit the PCIe switch to x4 upstream connection so you should be able to get ≈2750 MB/s.