Each module integrates eight electrical and eight optical channels operating at 212. 5 Gbps PAM4 per lane for an aggregate data rate of 1. With integrated DSP and silicon photonics (SiPh) technology, it provides excellent signal integrity and reach up to 500 meters over. The OSFP MSA is proud to introduce OSFP1600 and OSFP-XD to the industry. This whitepaper highlights the key aspects and features of each solution with the expectation that both solutions will have a place in future data center applications. The OSFP-XD solution has attracted significant interest in. Enter OSFP (Octal Small Form Factor Pluggable) — an open standard designed to deliver scalable, thermally optimized, and high-density optical connectivity for hyperscale, cloud, and AI-driven environments. Each module needs a small but precise set of support ICs — multi-voltage conversion, hot-plug load switching, rail supervision, and signal level shifting. The SFP was an early leader, offering a compact and versatile solution for 1 Gigabit Ethernet. As speeds increased, the industry introduced the QSFP, which quadrupled the lanes and offered a pathway to 40G and 100G. Now, with the push to 400G and beyond, the OSFP has emerged as a high-density. This specification defines the electrical connectors, electrical signals and power supplies, mechanical and thermal requirements of the OSFP Module, connector and cage systems. The OSFP Management interface is described in a separate document, Common Management Interface Specification for 8/16X.