Vortez published a review on the Crucial P2 and P5
A quote from the article:
Up for review today are two drives from Crucial which have only recently been unveiled. The P2 and P5 storage drives are both PCIe 3.0-based M.2 SSDs which promise to deliver good value and exceptional performance. The P2 is marketed towards the entry-level division, while the P5 is touted as brand's fastest SSD to-date claiming to hit 3500MB/s.Crucial P2 and P5 Review