M.2, formerly known as Next Generation Form Factor has created a power packed small-form-factor multi-purpose connector. It is stated that it will replace mSATA and mini- PCIe slots that are used in many laptops.
Storage is the key feature, but not the only one. It also supports USB, SATA, and PCIe. These tiny drives will result in super-fast storage ability for your laptop and/or personal computer. Jon L. Jacobi of PC World states that,
It is these units are nearly four times the speed of SATA, sitting at 2GBps.
These M.2 SSDs don’t come stock in many systems, so they created a M.2 expansion card that is only a modest $25.00 to upgrade any system. Jacobi has tested six new and old M.2 SSD drives to show readers of PC-world which is the best. To show how far this technology has advanced he also tested the very first M.2.
Testing was performed on the Asus X99 Deluxe/U3.1 motherboard, 32GB of DDR4, & Intel Core i7-5820K
The 256GB Samsung SM951 PCIe AHCI came out on top with writing 10 GB test and the reading 10 GB test. While the 256GB Samsung 850 Evo M.2 showed its technological age being the worst of both tests. The gap between the slowest and the fastest M.2 SSD was over a 1,000 Mbps difference.