Looking at getting either an Asus H87M-PRO w/an I5-4690 or an Asus Z87M-PLUS w/an I5-4690K (depending on which I can get a better deal on).
In either case, looking at getting a Gigabyte GV-N1030D5-2GL (GDDR5 version) using up PCIeX16-1.
Question - for PCIeX16-2 can I install an adapter to boot off an NVMe M.2 (256GB Samsung 960 EVO)?
If yes, what would my speed be using this?

Thanks!
In either case, looking at getting a Gigabyte GV-N1030D5-2GL (GDDR5 version) using up PCIeX16-1.
Question - for PCIeX16-2 can I install an adapter to boot off an NVMe M.2 (256GB Samsung 960 EVO)?
If yes, what would my speed be using this?

Thanks!