SAS links from the controller processors is adopted in current storage systems to communicate with flash drive.
Yet, an obvious bottleneck for communicating is found in the SAS (which employs legacy protocol SCSI).
Well, the appearance of NVM express over PCIe protocol is expected to eliminate the bottleneck.
AHCI is one of the classic logical interfaces and it will create certain inefficiencies when being used on SSDs.
Thats why you’re able to find many vendors who are shipping PCs with an integrated NVMe drive.
In general, the dedicatedM.2 slotsdesigned for SSD connection can be found in relatively newer motherboards.
Even though, some of the drive manufacturers insist offering products bundled with SSDs.
