Structural updates were made to the pin geometry to prevent localized thermal damage under maximum current draws.
The release of the M.2 Rev 5.0 specification has already had a profound impact on the PC hardware market.
The full official document is available to members via the PCI-SIG M.2 Specification page . PCI Express M.2 Structural updates were made to the pin geometry
Are you designing an or a motherboard socket layout?
The PCIe M.2 specification Revision 5.0 Version 1.0 PDF is now available for download from the official PCI Express website. Developers, manufacturers, and enthusiasts can access the updated specification to learn more about the changes and how to implement them in their designs. PCI Express M
: Adding Universal Flash Storage (UFS) to M.2 Socket 3 (expected August 2025). thermal guidelines introduced in this version? PCI Express M.2 Specification Revision 5.0, Version 1.0
The update to 5.0 is critical for several key technology areas: : Adding Universal Flash Storage (UFS) to M
To legally obtain the updated PDF:
This revision incorporates several critical updates aimed at improving power delivery and device versatility:
The previous stable document was . That specification governed the design of countless M.2 slots on AMD X570, Intel Z690, and early B650 motherboards. But with PCIe 5.0 SSDs now shipping (e.g., Phison E26 and Silicon Motion SM2508 controllers), the industry needed an updated PDF that addresses:
input/output (I/O) signaling for Land Grid Array (LGA) components.