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200G QSFP56
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200G QSFP56

As your network scales to 200G, you shouldn’t have to compromise between port density, transmission reach, or thermal budget. This product series delivers both standard QSFP56 and QSFP-DD form factors, with four core models (SR4, FR4, LR4, ER4) – purpose‑built for AI compute clusters, campus cloud networks, carrier‑grade metro aggregation, and everything in between.
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Description

Technical Parameters

200G QSFP56 Optical Transceiver Series: Full-Scenario High-Speed Interconnect – From Rack to Metro

 

One family, four reach options (70 m to 40 km) – the product solution that unifies density, distance, and power efficiency.

As your network scales to 200G, you shouldn't have to compromise between port density, transmission reach, or thermal budget. This product series delivers both standard QSFP56 and QSFP-DD form factors, with four core models (SR4, FR4, LR4, ER4) – purpose‑built for AI compute clusters, campus cloud networks, carrier‑grade metro aggregation, and everything in between.

 

Why This 200G QSFP56 Series?

Native PAM4 modulation – 53.125 Gb/s per lane, 200 Gb/s aggregated over 4 channels

Fully compliant with IEEE 802.3bs and relevant MSA specifications, the series achieves massive throughput while retaining high front‑panel density – more bandwidth per rack unit.

Unified +3.3 V single‑power supply and standard CML electrical interface

Hardware is fully standardised across all variants, enabling plug‑and‑play deployment with minimal system integration effort.

Comprehensive digital diagnostics (DDM) via I²C

Real‑time monitoring of temperature, supply voltage, Tx/Rx optical power, and laser bias current simplifies maintenance and enables proactive fault detection.

Rugged reliability

Operating case temperature 0 ~ 70 °C, ESD protection up to 1 kV (high‑speed pins) / 2 kV (control pins) HBM, Class 1 laser safety, and full RoHS compliance – built to withstand high humidity and strong EMI environments.

 

Four Models, One Reach for Every Link

 

Model

Reach

Fiber / Interface

Key Features

Target Use Cases

QSFP56 SR4 (short-reach)

70 m (with host FEC)

850 nm parallel 4-channel, OM3 MMF, MPO-12 APC

Lowest power (5 W max)

In-rack / inter-rack links, InfiniBand clusters, enterprise LAN

QSFP56 FR4 (mid-short)

2 km

CWDM4 (1271/1291/1311/1331 nm), G.652 SMF, LC duplex

5 W max, 4-wavelength multiplexing

Campus building interconnect, same-city disaster recovery, 5G fronthaul

QSFP-DD LR4 (mid-long)

10 km

LWDM4, G.652 SMF, LC duplex

10.8 W max

Metro access, enterprise WAN, 5G mid-/backhaul

QSFP-DD ER4 (long-reach)

40 km

LWDM4 with built-in FEC, G.652 SMF, LC duplex

12 W max, longest reach

Inter-city DC interconnect, carrier backbone, 5G core transport

 

Application Scenarios – Deploy with Confidence

 

This product family serves as a one‑stop, high‑density interconnect portfolio for:

  • Data centre leaf‑spine and DCI interconnects
  • 200G Ethernet network builds
  • High‑performance computing and GPU clusters
  • Enterprise private networks and campus backbones
  • 5G transport (fronthaul / midhaul / backhaul)
  • Metro optical transmission and regional aggregation

With standardised packaging, complete reach coverage, and proven robustness, the 200G QSFP56 series delivers a future‑ready, cost‑effective answer to your high‑speed optical networking needs – no matter the distance.

 

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