This article explains how this new 1. 6T optical modules are, the major module types involved, and the application scenarios driving adoption. 3, and OIF-CMIS standards, and RoHS compliant per EU directives 2011/65 and 2015/863. 6T-2xDR4H can convert 8x212Gb/s electrical data to 8x212Gb/s optical signals. It has been designed to withstand the maximum range of external operating conditions including. Lumentum's 1. 6T 2×DR4 TRO OSFP transceiver delivers ultra-high-speed optical connectivity for AI and cloud data centers requiring the highest density and energy efficiency. 5 Gbps PAM4 per lane for an aggregate data. Phase 4: 1.