QSFP-DD vs OSFP: Choosing the Right Form Factor for Modern Data Centers
TL;DR QSFP-DD and OSFP are both high-density pluggable form factors designed for 400G and 800G-class optics. Neither is universally better. The right choice depends on your switch platform, thermal envelope, power targets, and long-term AI fabric roadmap. For architects, the decision is less about the module alone and more about ecosystem alignment and operational consistency. …
