800G QSFP-DD 2FR4 Optical Transceiver – 2km LC SMF

SVNK QSFP-DD800 2×FR4 Optical Transceiver – 2 km SMF

The SVNK QSFP-DD800 2×FR4 optical transceiver is a high-performance, next-generation module engineered to support 800 Gigabit Ethernet links over single-mode fiber (SMF) with a transmission reach of up to 2 km. Designed in the QSFP-DD Type 2A form factor, this transceiver is optimized for hyperscale data centers, cloud infrastructures, and enterprise core networks requiring ultra-high bandwidth, extended reach, and superior reliability.

This module integrates 8 independent electrical input/output lanes, each operating at 106.25 Gb/s using PAM4 modulation, delivering an aggregate throughput of up to 800G. Internally, it consists of two FR4 optical engines, each using 4 CWDM wavelengths on the ITU-T G.694.2 grid near 1300 nm, enabling efficient wavelength multiplexing and long-reach optical transmission.

The electrical interface complies with IEEE 802.3ck (800GAUI-8) and the QSFP-DD MSA, ensuring broad interoperability with next-generation switches, routers, and high-density network platforms. Built-in Digital Optical Monitoring (DOM) via the I²C interface allows real-time monitoring of temperature, voltage, bias current, and optical power, ensuring operational stability and proactive network management.

With its hot-pluggable design, dual CS optical connectors, low power consumption, and compact footprint, the SVNK QSFP-DD800 2×FR4 module enables scalable, high-capacity 800G deployments across modern data center and metro-reach environments.

Key Features

• Hot-pluggable QSFP-DD Type 2A form factor
• Supports 800 Gigabit Ethernet
• Aggregate data rate up to 850 Gb/s
• 8×100G PAM4 electrical lanes (800GAUI-8)
• Dual FR4 optical architecture (2 × 4 CWDM lanes)
• EML-based CWDM transmitters near 1300 nm
• Maximum reach: up to 2 km over single-mode fiber (SMF)
• Dual CS optical receptacles
• Power dissipation < 16 W
• Single 3.3 V power supply
• Built-in Digital Diagnostic Monitoring (DDM/DOM)
• Commercial operating temperature: 0°C to 70°C
• RoHS compliant (lead-free)