M.2 Interface, Key and Socket explained

An M.2 SSD is “keyed” to prevent insertion of a card connector (male) to an incompatible socket (female) on the host. The M.2 specification identifies 12 key IDs on the module card and socket interface but M.2 SSDs typically use three common keys: B, M, and B+M

M.2 Connector Guide on Keys and Sockets for SSDs

What Is The M.2 Expansion Slot? The Future Of Compact, Robust

The M.2 interface

M.2 vs NVMe vs. 2.5 vs. U.2 SSDs

Does the Dell Latitude M.2 WWAN socket have the SATA interface on

M.2 Interface, Key and Socket explained

An Overview of M.2 Sockets and Modules · Knowledge base · Impulse

FAQs for SATA and M.2 SSDs - Kingston Technology

M.2 M vs M.2 (B+M): What's the Difference? - MiniTool Partition Wizard

M.2 For Hackers – Connectors

M.2 M vs M.2 (B+M): What's the Difference? - MiniTool Partition Wizard

M.2 Interface, Key and Socket explained

M.2 - Wikipedia

The M.2 interface