OpenSFF Compute Node Specification

4. Electrical Specifications

The connector layout for the compute node MUST be as follows:

Core Connector
- Position: 0 mm from the left side of the system board (with plug connectors facing towards)
- Guide notch location: On each side of the connector plug for Core variants. For Enterprise variants, only on the outer edge (away from the Enterprise Connector).
Enterprise Connector (Enterprise node only)
- Position: 0 mm from the right side of the system board
- Guide notch location: The Enterprise connector’s notch must start flush with the rightmost side of the board.
Spacing: 22.73 mm between the Core Connector and Enterprise Connector (if present)
Inner Latches: If both connectors are used, no guide notches should be present on their inner sides (the sides facing each other).

The compute node MUST support Ethernet connectivity as follows:

Number of ports: Two ports through the Core connector and an additional two ports through the Enterprise connector
Speed: 2.5 Gbps
Connector type: RJ-45

The compute node MUST support USB connectivity as follows:

Number of USB 2.0 ports: Two
Number of USB-C ports: One port through the Core connector and an additional port through the Enterprise connector, supporting at least USB 3.0 speeds
Number of USB 3.0 ports: One allocation for a Type A connector for external use or as an interface for node and management communication over Ethernet (mentioned in Sections 2.1 and 2.2).

The compute node MUST support DisplayPort connectivity with a minimum version of 1.4.

The compute node MUST provide connectors for front panel functionality, including: