Dell spec does not mention how many lanes are supported by the M.2 slot.  It could be either x2 or x4.  one way is to install a x4 ssd and benchmark speed yourself to find out.  If the M.2 slot is x 2 lane but you install a x4 ssd, it will run at x 2 bandwidth speed.  for future proof get the x4 ssd any way unless there is a big price difference where you can save a lot on x2 ssd. according to other 5680 user experience,  looks like full PCIe 3.0 x4 performance of 3500 MB/s with a M.2 NVMe SSD in the Dell Inspiron 5680 native M.2 slot. [IMAGE] [URL]
Hi, I want to upgrade my case so I can fit an nvme and also possibly change my motherboard as well so I can fit an rtx 3080ti! I know I can fit the 1 fan version of the rtx 3080 but I really want the best of the best so I was wondering if the rtx 3080ti would fit on that specific motherboard with a different case or will I have to change to a different motherboard? Just asking gonna probably end up going for a ddr5 motherboard since Im very curious to see!
Will my Dell Inspiron 5680 fit a 3 fan graphics card with the same motherboard 
if I decide to change my case?