Storage

M.2 (M-key)

Unknown
Family
Storage
Form Factor
Card-edge socket
Pin Count
67
Year
2013

Compact card-edge connector for NVMe SSDs using PCIe lanes. The M-key notch identifies it as a high-speed storage slot, supporting up to PCIe 5.0 x4 in modern motherboards.

On this page

Specifications

Family Storage
Form Factor Card-edge socket
Pin Count 67
Reversible No
First Released 2013

Supported Standards

NVMe 1.0

32.00 Gbps

NVMe 2.0

64.00 Gbps

Compatible Cables

NVMe M.2 to USB-C Enclosure Cable

M.2 (M-key) ↔ USB Type-C

U.2 to M.2 Adapter Cable

U.2 (SFF-8639) ↔ M.2 (M-key)

Compatibility

Connect To Compatible Adapter
SATA Data No Active Details →
eSATA No Active Details →
USB Mini-B No Active Details →
USB Micro-B SuperSpeed No Active Details →
USB Micro-B No Active Details →
SATA Power No Active Details →
M.2 (B-key) No Active Details →
SAS (Serial Attached SCSI) No Active Details →
PCIe x16 No Active Details →
microSD Card Slot No Active Details →
USB Mini-A No Active Details →
USB Type-B No Active Details →
USB Type-A No Active Details →
USB Type-B SuperSpeed No Active Details →
PCIe x1 No Active Details →
SD Card Slot No Active Details →
USB Type-C No Active Details →
D-Terminal No — Details →
IEC C13/C14 No — Details →
Speakon NL4 No — Details →