Asus PCI M.2 effect GPU? Help...

[XInvertedAerialX]

CPU - 3970X Threadripper

Motherboard - ROG Zenith II Extreme Alpha

GPU - twin (SLI) 3090

 

I can have up to 5 m.2 drives.  Not starting out with 5 but may eventually get there.

 

Question 1: If i do have two 3090's (SLI or not), will this motherboard run the both at 16x? (16x/16x) or would it be 16x/8x? 

 

Question 2: If i put 5 M.2 drives in, I KNOW i delete the use of one(1) of the banks of 4 SATA's, but will it limit the GPU question above?  ie 8x/8x or 8x/4x?

 

Sorry, I have researched this to death and I cannot wrap my head around the concept.  I just don't understand how the PCI stuff works.

 

Thank you all in advance!

[HM-2]

You have 88 total PCIE lanes to play with. I'm pretty sure you can run two GPUs at 16/16 and 5 M.2 SSDs at 4x without the latter impacting the former.