Its 400G QSFP-DD FR8/LR8, boasts the company, "provides the quickest and lowest risk path to deploy 400G optical interfaces for single mode fiber by leveraging a mature 25Gbaud platform compared to the yet-to-be-productized 50Gbaud platform." In addition, such a design "provides backward compatibility with QSFP+, QSFP28, and QSFP56, allowing users to leverage their investment in modules across multiple generations of equipment deployments," something that is not to be found with OSFP modules, claims the Source Photonics team.