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400GBASE QSFP-DD Active Optical Cable (QSFP-DD to QSFP-DD)

AOC-400G-QDD

from $1,004.00

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  • 400G to 400G data rate
  • Built-in diagnostic features
  • Hot pluggable QSFP-DD form factor
  • RoHS-compliant and CMIS compliant
  • Max.10W power dissipation on each end
  • 8 channels full-duplex transceiver modules
  • 8x53Gbps PAM4 transmitter and PM4 receiver
  • Operating case temperature range: 0 to +70ºC
400G QSFP-DD to QSFP-DD Active Optical Cable

MSA Compatible 400G QSFP-DD Active Optical Cable (1-100m, QSFP-DD to QSFP-DD, OM3/OM4)

The 400G QSFP-DD to QSFP-DD active optical cable has 8 channels full-duplex transceiver modules. The AOC cable has 8 channels 850nm VCSEL array and 8 channels PIN photo detector array. Each channel can transmit data rates up to 53Gbps with PAM4 modulation format. Moreover, Each lane can provide up to 70 meters using OM3 fiber or 100 meters using OM4 fiber with FEC. The QDD 400G AOC complies with IEEE802.3cd, QSFP-DD MSA, and CMIS standards. It has built-in digital diagnostic functions and a single 3.3V power supply. Perfect for 400G Ethernet, Telecom, and 5G/6G network structures.

Specification

Form FactorQSFP-DDWavelength850nm
Max. Data Rate400GbpsData Rate per Lane(PAM4) 26.5625 GBaud/s
Cable TypeOM3/OM4Cable LengthUp to 100m
Transmitter TypeVSCELReceiver TypePIN
Humidity(non-condensing)5 -85%Power Consumption<10W
DDM/DOMSupportedModulation FormatPAM4
CCDR (Clock and Data Recovery)TX & RX Built-in CDRTemperature Range0°C to 70°C
ProtocolsQSFP-DD MSA, IEEE802.3cdApplication400G Ethernet, HPCs

Questions & Answers

1. What is this AOC support the maximum link length?
70m on OM3 fiber, 100m on OM4 fiber with FEC.

What are the main applications for the 400G QSFP-DD active optical cable?
The 400G AOCs are ideal for high-speed interconnects in data centers, HPC clusters, and 200GBASE-SR4 applications.

How can I ensure optimal performance?
Use high-quality fiber, such as OM4 or OM5, to ensure excellent signal transmission.
Proper cable management avoids excessive bends, kinks, and crushing to prevent signal deterioration.

4. Does active optical cables(AOCs) is better than direct attach copper(DAC) cables?
In some scenarios, AOCs have advantages over DACs. First, longer distance transmission, AOCs transmit longer up to 100m using fiber optics. DACs are limited to short distances due to signal attenuation in copper. Second, AOCs using fiber optic cables are immune to electromagnetic interference(EMI). However, DACs are easily affected by EMI. Third, the AOCs are smaller and lighter than DACs, which can simplify cable management and improve airflow in densely packed equipment racks.

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