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Here ya go: $470 second hand. But if you're using it for a 10GbE NAS, PCIe 3.x should do, and you can get much better deals for PCIe 3.x.

M2 NVMe PCIe 4.0 cards are still very expensive. PCIe 3.x should do just fine.

My guess is that this is what @bugacha based his U.2 cable solution on. I'd be curious if the modifications to the typical Oculink cable described in the ASRock Wiki only affect power delivery via Oculink, or do they also mess with the data(!) aspect of the equation. I am guessing that it's just...

@BlueFox, @etorix, @Sean Ho, @bugacha: interesting development: I asked one eBay seller of Oculink to NVMe adapters such as this how the drive gets its power, and here's what he said: "There is no need to power for ssd separately, use OcuLink's own 3.3V PCIE power supply." Go figure!

So I went ahead and ordered one of these. What do you guys think, will this work? (Note that I also ordered the gear for the U.2 detour, but I might send that back if the Oculink to M.2 board works.)

Maybe this or this might work?

So, what's your conclusion then? I am struggling with the same issue here. I invested in two very expensive NVMe drives, only to realize that they are not detected by the system, and very likely because the NFHK adapters do not provide power.

So why would anyone even manufacture this adapter in the first place? What would it be for? (Is there such a thing like "power-over-Oculink"?)

Thanks. Should I understand that the Oculink cable actually provides power as well? And I say that because I do not see any power connectors on the Oculink to M.2 adapters! [Edit:] @etorix may have answered this one already.

@etorix, @bugacha: I am guessing that the power connector that comes with the Supermicro cable does not need to be used in my scenario, right? Would this be what you had in mind when speaking of a U.2 to M.2 adapter? Many thanks for the advice!

Thanks. Wouldn't this bottleneck my drive throughput to U.2 speeds though? (I need to squeeze out at least 10Gbps from my drive to saturate my 10GbE NAS network connection.)

At any rate, the link you posted is not the right type of cable. [Edit] These are the cables I got.

Thanks. I guess I should have specified that my NVMe drives are M2.

I got a NAS system built around an EC266D2I-2T/AQC motherboard. I purchased two 8TB NVMe M2 drives, and I have installed them in the Oculink slots (OCU1 and OCU2) using two Oculink to NVMe adapters. So far it looks like the system is not detecting them. What am I doing wrong? My guess is that...

Is the CEACENT ANM24PE16 still on sale (and I mean new, and at a reasonable price)?

Yeah, doesn't look like I will be getting what I want in the mini-ITX format, which is something I really wanted. Bummer. Had this Supermicro board had an x16 PCIe slot, it would have been perfect. Anyway, I may have to settle for something more conventional, such as this uATX mobo. What...

Thanks. At this point it looks like my best bet would be to wait for ASUS' second generation Flashstor 12 Pro. Just for kicks: what do you think the seller of the add-on card meant by this: "Different motherboards have different PCIE split channels. Some motherboards PCIE RAID is X8+. X4+X4...

Thanks. What branching should I look for in an adapter card to make sure that at least 3 NVMe drives are detected? x4x4x8?

Thanks. Note that the card itself supports x4x4x4(!): does that mean that at least three drives will be detected?

Looking to build me a new all-NVMe NAS, so I set my eyes on this Supermicro mobo. It's got a 1 PCIe 4.0 x8 slot, where I intend to install a bunch of NVMe drives via this expansion card. The problem is that the PCIe card is PCIe 4.0 x16: will the mobo detect all the NVMe drives? The mobo...