PCIE NVMe multiplexer?

Interesting. I wish it was a quad instead of a dual port especially at that price.
 
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learners permit said:
Has anyone tried this relatively new device as a boot or storage drive in their system yet? The card appears to have multiple raid configs as a possibility although I have yet to find anyone doing so.
http://ableconn.com/search.php?key=+Ableconn+PEXM2-130+Dual+PCIe+NVMe+M.2+SSDs+Carrier+Adapter+Card+
Click to expand...

What do you mean, bifurication? Check it out...

https://hardforum.com/threads/build...-raid-render-monster.1990145/#post-1044424588

If you are on gen3, check out the Asrock Ultra Quad, Gigabyte Aorus AIC gen3, Asus Hyper card. The cards linked above turn me off.
 
None of these are really multiplexers though. That would imply that it is taking a PCI-E x4 slot and attaching two drives to it. An NVME takes 4 lanes (typically), and these dual cards require a PCI-E x8 slot so half the slots go to one SSD and half go to the other. Gigabyte's 4 drive version requires an x16 slot so again 4 lanes go to each drive.
 
EniGmA1987 said:
None of these are really multiplexers though. That would imply that it is taking a PCI-E x4 slot and attaching two drives to it. An NVME takes 4 lanes (typically), and these dual cards require a PCI-E x8 slot so half the slots go to one SSD and half go to the other. Gigabyte's 4 drive version requires an x16 slot so again 4 lanes go to each drive.
Click to expand...

Yeah, but those 'features' aren't available unless the BIOS specifically supports bifurcation, if a mobo does not, then a PLX chip must be used, which is essentially a PCIe switch. The lane-age is just arbitrary, if someone made a 4x card you could still theoretically support 2 NVMe drives at 2x bandwidth presumably if it had PLX switching.

Without googling the 'chipset' too much I'm assuming that's what this PCB does.
 
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