Anandtech published Samsung Announces 960 PRO And 960 EVO M.2 PCIe SSDs
A quote from the article:
Here at Samsungs SSD Global Summit in South Korea, the company has just officially unveiled their next generation of M.2 PCIe SSDs. The new 960 PRO SSD is the successor to the 950 PRO, launched at last years Summit as Samsungs first M.2 PCIe SSD for the retail market. The new 960 EVO introduces a more affordable option based on TLC NAND flash.Samsung Announces 960 PRO And 960 EVO M.2 PCIe SSDs @ Anandtech
Samsungs early M.2 PCIe SSDs were officially OEM-only products. The XP941 was one of the first PCIe SSDs designed for client computing use and used the AHCI protocol that is standard for SATA controllers rather than the newer NVMe protocol. The next generation consisted of the SM951 and PM951 SSDs, which adopted a new controller that supports PCIe 3.0 x4 operation and provides NVMe support as an option. The 950 PRO uses the same controller as the SM951 but introduced Samsungs 3D V-NAND to the product family for the first time.