Inclusion of new module definitions such as the M.2 3052 and 3060 WWAN modules. 3. Physical and Electrical Enhancements
Furthermore, the final Version 1.0 includes enhancements to the physical connection of the M.2 slot itself, ensuring better contact, greater stability, and reduced electrical noise at these higher frequencies. This includes new methods for measuring signal quality to ensure that motherboards and drives can reliably communicate at Gen 5 speeds without excessive bit errors. Inclusion of new module definitions such as the M
: Maintained support for varied module lengths (30mm to 110mm) and widths up to 30mm, focusing on Socket 3 (M-key) for high-performance x4 PCIe bandwidth. Specification Status and Availability Release Date : May 12, 2023. Preceding Versions : Revision 4.0, Version 1.1 (released November 9, 2022). Subsequent Updates : As of late 2025, PCI-SIG has moved toward Revision 5.1 This includes new methods for measuring signal quality