[M] Crucial P2 500GB PCIe M.2 2280 SSD Review
 

The P2 offers performance improvements over the entry-level P1 regarding both reads and writes. At 50% fill, we could see a bit of performance drop due to less SLC cache left but will remain at very acceptable values for a TLC 3D NAND drive. Given the fact that the drive is also paired with a 5-year warranty, it is a good replacement product for the older SATA M.2 or 2.5’’ SSD in your laptop or desktop and comes at a very affordable price point.

http://www.madshrimps.be/articles/article/1001227/