M2 B Keyed is Sata

M2 Not B Keyed is PCI-E

You can get 2.5 inch adapters for M2 B keyed to 2.5 inch drive.  You can also Get 2.5 inch to 3.5 inch adapter.

So it DEPENDS on WHICH TYPE you are talking about. One size DOES NOT fit all.

NVME B KEYED

https://www.amazon.com/M-2-Converter-Adapter-Enclosure-SATA-bus/dp/B0721Q2R8D

This card will take one or the other

https://www.amazon.com/Tanbin-Adapter-Controller-Expansion-Profile/dp/B07BJJ5VDB

When you use the B keyed part you have to attach a SATA data cable to the back of the card to the motherboard. This is why it says B keyed on one socket and M keyed on the other.

These are the drives i am referring to:

https://www.amazon.com/Black-High-Performance-NVMe-PCIe-WDS100T2X0C/dp/B07BRCLMTS/ref=sr_1_3?s=electronics&ie=UTF8&qid=1529506400&sr=1-3&keywords=wd+nvme+black+1tb

I'm kinda new to this are and haven't been researching it long, but I believe the key on M.2 is just a physical attribute and that  protocols and whatnot is the same on all NVME drives.

So to my understanding, as long as motherboard doesn't have limitations beyond physical attributes of connectors, I can ad more NVME drives using adapters.

This is why I am looking into ways of making use of my 3 NVME M.2 without losing the NVME speed. whether through PCIE or U.2, But I can't seem to find solid info on whether this is doable. 

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@pt3pt3 wrote:

has anyone been able to get the Asus Hyper to work in their Aurora R7? I can only see one nvme drive and only when its installed in the first slot.

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You'd probably need to set the slot for x4x4x4x4 bifurcation in bios, if supported.  

edit: Or x4x4 - note above, someone posted that the R8 slot #1 runs at x8, so that's probably the same for the r7. 

has anyone been able to get the Asus Hyper to work in their Aurora R7? I can only see one nvme drive and only when its installed in the first slot.