Quick as a flash: NVMe will have you in tiers
Sysadmin Blog Non-Volatile Memory Express, or NVMe, is a game-changing storage standard for PCIe-connected drives. It is replacing AHCI and along with the U.2 (SFF-8639) connector it is replacing both SAS and SATA for high speed, low latency storage. It's the smart way to connect up flash and post-flash storage tech to your servers."