: It adds a core voltage of 0.75 V on the PWR_3 rail specifically for BGA SSDs and introduces 1.8V I/O for LGA modules.
: High-performance Gen 5 SSDs, such as the Crucial T700 , can reach sequential read speeds exceeding 14,000 MB/s , nearly twice that of the fastest Gen 4 drives. 2. Technical Refinements in Revision 5.0 pci express m.2 specification revision 5.0 version 1.0 pdf
While M.2 5.0 maintains backward compatibility with older slots, the physical demands of Gen 5 speeds are higher: Specifications - PCI-SIG : It adds a core voltage of 0
: The spec includes the M.2-1A ECN (Engineering Change Notice), which improves the amperage ratings for connectors and add-in cards to handle the increased power demands of high-speed modules. such as the Crucial T700