• Dell DAC-Q56DD-400G-1M Compatible 1m (3ft) 400G QSFP-DD Passive Direct Attach Copper Twinax Cable SFPS
  • Dell DAC-Q56DD-400G-1M Compatible 1m (3ft) 400G QSFP-DD Passive Direct Attach Copper Twinax Cable SFPS
  • Dell DAC-Q56DD-400G-1M Compatible 1m (3ft) 400G QSFP-DD Passive Direct Attach Copper Twinax Cable SFPS
  • Dell DAC-Q56DD-400G-1M Compatible 1m (3ft) 400G QSFP-DD Passive Direct Attach Copper Twinax Cable SFPS
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Fyber Optix

FyberOptix Dell DAC-Q56DD-400G-1M Compatible 1m (3ft) 400G QSFP-DD Passive Direct Attach Copper Twinax Cable

FyberOptix Dell DAC-Q56DD-400G-1M Compatible 1m (3ft) 400G QSFP-DD Passive Direct Attach Copper Twinax Cable

Model

FyberOptix SKU

FO-QDD-400G-CU1-173230

Description

Fyber Optix delivers fully tested, OEM-compatible optical transceivers, DWDM/CWDM systems, media converters and DAC/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.

This Dell DAC-Q56DD-400G-1M compatible 1m DAC cable features passive copper twinax construction for reliable 400G short-reach networking. It supports 400Gb/s Ethernet throughput, providing a dependable inter-rack link for high-density Dell networking deployments via QSFP-DD ports. The passive design offers a low-cost, energy-efficient alternative to optics for immediate high-speed connectivity.

Fyber Optix is a British-engineered brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM/CWDM systems, media converters, and DAC/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.

Lifetime warranty

Every FyberOptix module is covered for life against defects.

Coded for your platform

Pre-programmed for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia, Fortinet.

Fast global delivery

Dispatched from UK/EU/US hubs with express options.

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OEM Compatibility

Fully compatible with leading network equipment vendors

Why Fyber Optix

Built for network engineers who can't afford downtime

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Lifetime warranty

Every product is backed for the life of the deployment, with support when you need it.

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100% pre-shipment tested

Every unit is individually tested and validated before dispatch.

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Fast global delivery

Reliable fulfilment for urgent network rollouts and replacement projects.

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Dedicated technical support

Speak with specialists who understand compatibility, coding and deployment needs.

Need a larger quantity?

Get a Custom Quote for Your Project

Competitive pricing for bulk orders, ongoing supply and enterprise projects.

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Answers to your Questions

FAQs

Is this product covered by warranty? +

Yes, every Fyber Optix product carries a lifetime warranty for confidence across the life of your deployment.

Is this compatible with my switch or router? +

Fyber Optix products are coded and tested for compatible OEM platforms. If you are unsure, send us your device model or part number and our team can confirm compatibility.

Are products tested before dispatch? +

Yes, every unit is individually tested before shipment to help ensure reliable performance in real network environments.

What lead time should I expect for bulk orders? +

Lead times depend on the product, quantity and coding requirements. Contact us for current availability and volume order timelines.