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400G QSFP-DD to 2×200G QSFP56 Active Optical Cable (AOC), PAM4

P/N: AOC-400GDD-2xQ56-1

Product Highlights:

  • 400G QSFP-DD to 2×200G QSFP56 breakout
  • 8×50Gbps PAM4 architecture
  • Integrated optical conversion
  • 0.5m to 50m length options
  • Hot-pluggable interfaces
  • Low-power active optical design
  • Ideal for AI and high-density data centers

Table of Contents

Description

The 400G QSFP-DD to 2×200G QSFP56 Active Optical Cable (AOC) is a high-density breakout optical interconnect designed to connect one 400G QSFP-DD port to two independent 200G QSFP56 ports. Using multimode fiber and an 8-lane 50Gbps PAM4 architecture, it provides an efficient solution for 400GbE breakout applications requiring a single 400G interface to connect with two 200G network interfaces. The cable integrates optical conversion and active signal processing within the cable assembly, eliminating the need for separate optical transceivers and fiber patch cables. With available lengths from 0.5m to 50m, hot-pluggable QSFP-DD and QSFP56 interfaces, and low-power operation, it is suitable for data centers, AI and GPU clusters, HPC systems, and high-density Ethernet networks.

Specification

Cable Configuration

QSFP-DD to 2×QSFP56

Aggregate Data Rate

400Gbps

Breakout Configuration

400G to 2×200G

Optical Signaling

PAM4

Electrical Lane Configuration

8×50Gbps PAM4

Fiber Type

Multimode Fiber (MMF)

Transmission Distance

0.5–50m

QSFP-DD End

400G

QSFP56 Ends

2×200G

Management / Compliance

CMIS 4.0

Digital Diagnostic Monitoring

Yes

Hot-Pluggable

Yes

Power Supply

Single 3.3V

Max. Power Dissipation – QSFP-DD End

8W

Max. Power Dissipation – Each QSFP56 End

4.5W

Operating Case Temperature

0°C to +70°C

Storage Temperature

-10°C to +70°C

Features

  • 400G QSFP-DD to 2×200G QSFP56 breakout configuration
  • Up to 400Gbps aggregate bandwidth
  • Two independent 200G QSFP56 connections
  • 8-lane 50Gbps PAM4 architecture
  • Multimode fiber transmission
  • Integrated optical conversion
  • Active signal processing
  • Hot-pluggable QSFP-DD and QSFP56 interfaces
  • Available in 0.5m to 50m lengths
  • Low power consumption
  • No separate optical transceivers required
  • No intermediate fiber patch cables required

Applications

  • 400G to 2×200G Ethernet breakout
  • 400GbE network connectivity
  • Data center networks
  • AI and GPU clusters
  • High-performance computing
  • High-density Ethernet networks
  • Switch-to-switch connectivity
  • Switch-to-server interconnects
  • 400G network expansion and migration

FAQ

What is the breakout configuration?

The cable connects one 400G QSFP-DD interface to two independent 200G QSFP56 interfaces, allowing a single 400G port to provide connectivity to two 200G network devices.

What signaling architecture does the cable use?

The AOC uses an 8-lane 50Gbps PAM4 electrical architecture to support 400G-class aggregate bandwidth.

What cable lengths are available?

The AOC is available in lengths from 0.5 meters to 50 meters, providing flexibility for different rack and data center layouts.

Are separate optical transceivers required?

No. Optical conversion and active signal processing are integrated into the cable assembly, eliminating the need for separate optical transceiver modules and intermediate fiber patch cables.

What applications is this AOC designed for?

It is suitable for 400GbE breakout applications in data centers, AI and GPU clusters, HPC systems, and high-density Ethernet environments where a 400G port needs to connect with two 200G interfaces.

Featured DACs & AOCs Comparison Guide

SKU Cable Type Data Rate Form Factor A Form Factor B Wire Type Length
AOC-100GQSFP28-5 AOC 100G QSFP28 QSFP28 OM4 Fiber Cable 5M
AOC-10GSFP-10 AOC 10G SFP+ SFP+ OM4 Fiber Cable 10M
AOC-25GSFP28-3 AOC 25G SFP28 SFP28 OM4 Fiber Cable 3M
AOC-40GQSFP-10 AOC 40G QSFP+ QSFP+ OM3 Fiber Cable 10M
AOC-QSFP-10G4SFP-5 AOC 40G QSFP+ 4*SFP+ OM3 Fiber Cable 5M
AOC-QSFP28-4SFP28-3 AOC 100G QSFP28 4×SFP28 OM3 Fiber Cable 3M
DAC-100GQSFP28-25G4SFP28-P5 DAC 100G QSFP28 4×SFP28 24AWG 5M
DAC-100GQSFP28-P3 DAC 100G QSFP28 QSFP28 26AWG 3M
DAC-10GCX4-P05 DAC 10G CX4 CX4 28AWG 3M
DAC-10GSFP-P10 DAC 10G SFP+ SFP+ 24AWG 10M
DAC-400GQSFP-P5 DAC 400G QSFP-DD QSFP-DD 30AWG 5M
DAC-40GQSFP-P07 DAC 40G QSFP+ QSFP+ 28AWG 7M
DAC-QSFP-10G4SFP-P03 DAC 40G QSFP+ 4 * SFP+ 30AWG 3M
DAC-SFP-P05 DAC 1.25G SFP SFP 30AWG 5M

Quality Qulifications and Compliance

To get the detailed certification, please go to the Compliance.

Please Note: Our products comply with all internationally recognized and industry-standard specifications. For customized or special requirement products, we carry out testing and standards in accordance with the conformity criteria specified in the contract.

Have Questions? Contact Our Product Experts or Sales Team Today! We Will Fedback You Soon.

400G QSFP-DD to 2×200G QSFP56 PAM4 active optical breakout cable

400G QSFP-DD to 2×200G QSFP56 Active Optical Cable (AOC), PAM4

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