I installed the 512GB MZ-V5P512BW with zero problems - so yours should be fine.
BTW - it seems there is a bios update being planned which will enable these to be used at full speed (not the 1600 limit as applies now).
See post here, towards the end:
Thanks RobbieF for the information, Cheen you can also check on this list of Intel® NUC’s tested peripherals
Please let us know if the information provided helps you.
but NUC6isyh is it really supports PCIe NVMe ?
nothing is indicated on the product sheet
Yes. It works. I used it in my NUC6i5SYH and will use it in my 6i7KYK. My 6i5SYH booted up in under 2 seconds after POST. It was amazing, you'll love it. And I'm talking about the 256GB. I also got a new ASRock Z170 Extreme 4 for my desktop and for some reason, it takes a bit longer even though I got the i7.
See this article from AnandTech: Choosing the Right SSD for a Skylake-U System
It is surprising that Intel does not specify on their product page.
This will change the speech that no Linux works with nuc!
I'm not sure about 950, I have a SAMSUNG MZVPV256HDGL SM951 256Gb M.2 NVMe SSD PCI-E x4 and a NUC6i5syh and it works fine and fast. If that helps any