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400G QSFP56-DD SR8
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400G QSFP56-DD SR8

400G QSFP56-DD SR8

400G QSFP56-DD SR8—8×50G PAM4 @ 850 nm over MPO-16 parallel MMF; 100 m (OM4) / 150 m (OM5), 400GAUI-8 host, CMIS management—built for dense spine–leaf and 8×50G breakouts.

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The 400G QSFP56-DD SR8 is a 400-Gigabit Ethernet multimode transceiver for short-reach, high-density data-center fabrics. It uses 8×50G PAM4 lanes at 850 nm over parallel MMF on a 16-fiber MPO-16 connector (8 fibers Tx / 8 fibers Rx) and presents an 8-lane 400GAUI-8 electrical host—ideal for leaf–spine interconnects and high-fan-out breakouts.

  • Standards & Management

    • IEEE 802.3cm 400GBASE-SR8 compliant

    • Electrical host: 400GAUI-8 (8×53.125 Gbps PAM4, host KP4 FEC)

    • Module management: CMIS 4.0+ (DOM/diagnostics, alarms)

  • Optics & Reach

    • Wavelength: 850 nm VCSEL, parallel optics

    • Fiber/Connector: OM4/OM5 MMF, MPO-16 (primary)

    • Reach: up to 100 m on OM4, 150 m on OM5

    • Breakout: supports 8×50G breakout via MPO-16 → 8×LC-duplex harness (platform-dependent)

  • Performance & Power

    • Line rate: 400 GbE (8×50G PAM4)

    • Typical module power: ≤ 8 W (platform-dependent)

    • Low BER with host KP4 FEC; PRBS/loopback support

  • Reliability & Environment

    • Case temperature: 0 to +70 °C (commercial)

    • Laser safety: Class 1 (IEC 60825-1)

    • RoHS/REACH compliant

  • Use Cases

    • 400G spine–leaf interconnects inside/between rows

    • 8×50G breakout to access layers (SFP56) via MPO-16 harness

    • Short-reach backbones across halls using existing MMF plant

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Our senior optical engineers leverage a mature portfolio of DCI/OTN platforms and CWDM/DWDM modules to deliver precise customization and form/fit/function matching. From compact DCI BOX to coherent 100G/200G/400G line cards, we meet multi-vendor interoperability targets (e.g., OpenZR+/OpenROADM) and tailor interfaces, protection, and O&M to your requirements.

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Accelerate your rollout with rapid cycles: lab configurations in 1–3 days, standard builds shipping in 3–7 days, and pilot-friendly MOQs (1 unit for in-stock models; ≥5 units for custom). Move fast, validate quickly, and scale without risk.

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Quality is built into every stage. We operate under ISO 9001 and provide product-level safety/EMC compliance (CE, FCC, UL, TUV, CSA) plus RoHS/REACH. Advanced ERP/MES ensures full serial-level traceability and batch-to-batch consistency—your assurance of reliable optical transport at scale.