400G QSFP-DD to 400G QSFP-DD Passive Direct Attach Copper Twinax Cable

P/N: QDD-QDD-C SKU: 32001

US$71.00

In Stock: 87 pcs
Compatible Brands: MSA Standard NVIDIA(Ethernet)
Length: 0.5m (1.6ft) 1m (3ft) 1.5m (5ft) 2m (7ft) 3m (10ft)
Quantity:
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Products Highlight

  • <0.1W Power Consumption
  • 33mm Minimum Bend Radius
  • 8x50G PAM4 Electrical Interface
  • QSFP-DD MSA Compliance
  • CMIS Rev4.0 Compliance
  • Electronics-Free Passive Design

Specifications

Connector Type QSFP-DD to QSFP-DD Data Rate 425Gbps to 425Gbps
Media Copper Cable Type DAC
Cable Length 0.5m~3m(2ft~10ft) Outer Diameter 0.5m~1.5m@AWG 30 2~3m@AWG 28
Jacket Material PVC Minimum Bend Radius 23mm@AWG 30 25mm@AWG 28
Power Consumption ≤0.1W Case Operating Temperature 0 to 70°C (32 to 158°F)
Protocol 400 Gigabit Ethernet 400G RoCE Application Swicth to Switch Switch to NIC Other Links

Applications

Certification

Features

COMPATIBILITY

ALL TRADEMARKS, REGISTERED COMPANIES & REFERENCES CITED ARE THE SOLE PROPERTY OF THEIR RESPECTIVE COMPANY AND ARE USED SOLELY TO ASSIST IN THE IDENTIFICATION OF PRODUCTS.

  • NVIDIA/Mellanox MCP1660-W001E30 COMPATIBLE

Switch Series & Supported Models

Browse common switch series and models supported for each brand.

Resources

Find answers to common questions about our products.

Can I use this cable with Mellanox/NVIDIA or Amphenol 400G equipment?

Yes, it can be used with compatible 400G QSFP-DD ports on Mellanox/NVIDIA, Amphenol, and other mainstream platforms. For specific models, we recommend confirming the host compatibility before deployment.

What if my switch model is not listed in your tested compatibility list?

You can choose the generic-compatible option for initial validation, or contact AICPLIGHT with the device model and firmware version. We can help check compatibility requirements before purchase.

Why choose a passive DAC instead of a 400G AOC or optical transceiver?

Passive DAC is a cost-effective option for short 400G connections, with very low power consumption and low latency. It is especially suitable for rack-level or adjacent-device connections.

Has this 400G QSFP-DD DAC been tested before shipment?

Yes, AICPLIGHT performs compatibility, signal integrity, and reliability tests before shipment. Test reports can be provided when required for project validation.

Have a question? Our technical support team is here to help you find the right solution.
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Questions & Answers Title

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M***l Confirmed Purchase
5.0

The cable was recognized by the switch right after installation, and the link has stayed stable. It works well for short in-rack connections with low latency.

B***n Confirmed Purchase
4.0

The build quality is better than I expected, and routing the cable was not too difficult. We used several between servers and ToR switches, with no dropouts so far.

K***y Confirmed Purchase
5.0

This AICPLIGHT high-speed cable performs well and was detected properly by the port. After running it for a while, the signal has remained stable.