M.2 to Oculink

M.2 card

• Usually used for M.2 SSDs in laptop or desktop motherboards.
• Pins follow the PCIe specification for x4 lanes.

Diagram 2. M.2 card size standards (source)

Table 1. M.2 connector pinout (source)

Oculink port

• Follows the SFF-9402 specification which is compatible with PCIe
• SFF-9402 specification

  (source)
• Female port is rated for 10000 insertion cycles.
• Male cable is rated at a minimum of 50.
• Compatible with the PCIe specification for x4 or x8 lanes.
• Wider x8 lane variant is not as useful since no M.2 slot as of yet supports PCIe x8 lanes.
• Amphenol Oculink port datasheet

  (source)

Image 1. Amphenol oculink port (source)

Table 2. Amphenol Oculink connector pinout (source)