News Maxsun makes a GPU with two built-in M.2 SSD ports — Intel Arc B580 graphics card leverages unused PCIe lanes on the PCIe x16 slot

Asus did this with the 4060Ti SSD, and it required a carefully vetted compatibility list, along with mobo BIOS updates.
They even had a dual SSD prototype that never materialized. Probably because a majority of Asus mobos don't bifurcate a 16x slot into 8+4+4.

I have a hard time believing Maxsun has figured out 8+4+4 bifurcation, when Asus abandoned it.
 
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Asus did this with the 4060Ti SSD, and it required a carefully vetted compatibility list, along with mobo BIOS updates.
They even had a dual SSD prototype that never materialized. Probably because a majority of Asus mobos don't bifurcate a 16x slot into 8+4+4.

I have a hard time believing Maxsun has figured out 8+4+4 bifurcation, when Asus abandoned it.
Standard 4x4x4x4 bifurcation 'should' work fine.
The GPU 'handshakes' 8 lanes off the 4x4 split, and ea. NVMe handshakes 4-lanes.

Source: Experimentation with an Asus X570 and MaxCloudOn riserkits.
 
I have a hard time believing Maxsun has figured out 8+4+4 bifurcation, when Asus abandoned it.
Every Z890 supports this configuration unless the motherboard manufacturer screwed up (I only looked at about a dozen boards before picking mine but they all had it). I assume this means all of the lower chipsets will as well since this capability comes from the CPU. Prior Intel desktop platforms could only do x8/x8 which limited use for something like this though that does mean a single drive would work.

AMD has been able to go down to x4x4x4x4 but I'm not familiar enough with the platform to know if that means they can do x8x4x4.
 
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Dang. I could have used this type of GPU to add 2 more m.2 drives to my older PC which has no more sockets available.
But a 3 fan GPU is too big. I need a 2 fan GPU to fit the case. 😔