A standard x4 M.2 slot (common for NVMe SSDs) delivers up to 15.75 GB/s of bi-directional bandwidth.
The updated PCIe M.2 specification Revision 5.0 Version 1.0 brings several key changes and enhancements: A standard x4 M
To appreciate this update, we must first clarify the nomenclature. “PCI Express M.2 Specification” is distinct from the general PCIe Base Specification. While PCIe 5.0 (32 GT/s) has been a standard for servers and high-end desktops for several years, the M.2 specification governs the physical card edge, keying, connectors, and electrical requirements specific to the M.2 form factor. A standard x4 M
Maintains the familiar M.2 form factor keys (e.g., M-key for NVMe SSDs) but requires higher-grade materials for the connector. A standard x4 M