The M.2 socket will give you NVMe performance because the 960 EVO is an NVMe SSD. If you plugged in a SATA SSD, it would give you AHCI SATA3 speeds. The M.2 socket supports both protocols.
The M.2 socket will give you NVMe performance because the 960 EVO is an NVMe SSD. If you plugged in a SATA SSD, it would give you AHCI SATA3 speeds. The M.2 socket supports both protocols.