Sky Optics 400G optical transceivers provide high-density, low-latency, and cost-efficient 400Gbps connectivity for modern cloud data centers, high-performance computing, and telecom metro and core networks. Our comprehensive lineup includes three mainstream form factors: 400G QSFP112, 400G QSFP-DD (QSFP56-DD), and 400G OSFP, fully addressing varied requirements for power efficiency, port density, and transmission reach.

The 400G QSFP112 employs a 4×112G PAM4 architecture in a standard QSFP footprint, delivering ultra-low power consumption and full backward compatibility with legacy QSFP interfaces, making it ideal for high-density, energy-efficient deployments.
The 400G QSFP-DD (QSFP56-DD) adopts an 8×50G PAM4 double-density design with a mature ecosystem and broad compatibility, serving as a universal solution for mainstream data center interconnections.
The 400G OSFP features enhanced thermal performance and higher power tolerance, perfectly optimized for high-power, long-reach telecom transmission scenarios.

All 400G transceiver models comply with industry MSA standards and support CMIS-based I2C digital diagnostic monitoring. Featuring hot-swappable design and consistent operational stability, these modules deliver dependable performance for a wide range of 400G networking applications.