research or google "installing samsung xp941 as boot or OS drive" and you'll know what you're getting into
but more direct to your question, here's a review on that very topic http://www.thessdreview.com/our-reviews/samsung-xp941-m-2-pcie-ssds-raid-0-worlds-smallest-ssd-combination-hits-2gbs/
but back to my first suggestion, you might want to consider the kingston HyperX Predator in Raid 0
http://www.thessdreview.com/our-reviews/kingston-hyperx-predator-m-2-pcie-ssds-in-raid-0-you-thought-one-was-fast/
even one kingston hyperx predator would be a smarter move - research on SSD review the number for a single hyperx predator
reason i suggest the kingston unit, it has an oprom pre-installed which makes it much easier to install as a boot drive, the xp941 does not, plus it doesn't come with a warranty - it's sold only as an OEM unit to computer mfgrs, which samsung assigns warranty svc responsibly to. Units available for sale are sold as "replacement" parts. Check the warranty for the xp941 newegg's site - none described and only a "replacement policy" if it proves bad in the first 30 days
the kingston is sold as a "retail" unit, so pre-installed oprom (boot files) and a warranty