Optical Module OSFP

OSFP (Octal Small Form Factor Pluggable) is a high-speed pluggable optical module supporting up to 1.6 Tbps, with the OSFP-XD variant extending capacity to 3.2 Tbps for data center and high-performance computing applications.

Overview of OSFP

The OSFP is a pluggable form factor designed for high-speed optical communication, featuring 8 high-speed electrical lanes. It supports data rates of 400 Gbps (8x50G), 800 Gbps (8x100G), or 1.6 Tbps (8x200G), and up to 36 OSFP ports can fit in a 1U front panel, making it suitable for dense data center deployments . OSFP modules typically include an integrated heatsink for thermal management, available in open-top or closed-top configurations. The OSFP-RHS variant provides the same electrical performance but requires a separate riding heatsink for cooling, offering design flexibility .

OSFP-XD: Extended Density Variant

The OSFP-XD (Octal Small Form Factor Pluggable – Extended Density) doubles the faceplate density compared to standard OSFP, featuring 16 high-speed electrical lanes. This allows support for 800 Gbps (16x50G), 1.6 Tbps (16x100G), or 3.2 Tbps (8x200G) . OSFP-XD modules are designed for pluggable optical interconnects in high-performance computing and AI applications, enabling long-distance optical connections that can extend several hundred meters, far beyond the typical electrical wiring limit of under 10 meters . OSFP and OSFP-XD are not interoperable due to mechanical and electrical differences .

Applications and Benefits

OSFP modules are widely used in data centers, AI networks, and high-performance computing environments. They provide:

• High port density for 100GE, 200GE, 400GE, and 800GE interfaces .
• Power savings by eliminating retimers required in electrical wiring, reducing overall data center energy consumption .
• Design flexibility through pluggable modules, allowing integration into existing systems and future expansion .
• Thermal management via integrated heatsinks or RHS solutions, ensuring reliable operation under high data throughput .

Industry Adoption

Leading companies like Cisco offer OSFP 800G transceiver modules compliant with OSFP MSA specifications, supporting multiple Ethernet speeds and certified for high-performance, reliable operation in enterprise, service provider, and AI-focused networks . Kyocera has also developed OSFP-XD modules supporting PCIe 6.0, enabling high-capacity optical interconnects for GPUs, CPUs, and AI accelerators in data centers . In summary, OSFP and OSFP-XD modules provide scalable, high-speed optical connectivity with enhanced density, thermal management, and long-distance capabilities, making them essential for modern data center and high-performance computing infrastructures.