Selecting the Correct Form Factor

Overview

A form factor defines the physical and electrical module interface. It does not by itself define speed, optical technology, reach or connector.

Key planning checks

• Read the platform port specification before selecting the module shell.
• Do not assume similarly sized form factors are mechanically interchangeable.
• Check cage, thermal and power-class limits at higher speeds.
• Use adapters only where the host and intended module combination are explicitly supported.