Samsung Announces 860 PRO And 860 EVO SATA SSDs
 

After more than three years of ruling the consumer SATA SSD market, the Samsung 850 series is being replaced. The 850 PRO and 850 EVO that first brought 3D NAND flash memory to the consumer SSD market are being retired to make room for the new 860 PRO and 860 EVO SSDs. The new 860 drives are not revolutionary the way the 850s were, but instead represent continued evolution of Samsung's SSD technology.

https://www.anandtech.com/show/12347...-evo-sata-ssds