• Silver-colored Arista CAB-D-2Q-400G-2M sfp+ transceiver modules with blue handles and metallic connectors for 400G QSFP-DD breakout cable
1 1

Arista

Arista CAB-D-2Q-400G-2M | 400G QSFP-DD to 2x 200G QSFP DAC Breakout Cable, 2m

Arista CAB-D-2Q-400G-2M | 400G QSFP-DD to 2x 200G QSFP DAC Breakout Cable, 2m

CAB-D-2Q-400G-2M

Stock Status: Enquire

$0.00 AUD
$0.00 AUD
$0.00 AUD
Sale Stock Status: Enquire
Taxes included. Shipping calculated at checkout.

Description

The Arista CAB-D-2Q-400G-2M is a 400G passive Direct Attach Copper (DAC) breakout cable designed for high-density data centre deployments. It splits a single 400GBASE-CR8 QSFP-DD port into two independent 200GBASE-CR4 QSFP connections using twin-ax passive copper construction, leveraging 8 x 50G PAM-4 electrical lanes on the QSFP-DD side and 4 x 50G PAM-4 lanes per QSFP breakout. At 2 metres, it is ideal for rack-to-rack and top-of-rack interconnects where cost-efficient, low-latency 400G breakout connectivity is required.

As a passive DAC cable, the CAB-D-2Q-400G-2M requires no active components, resulting in minimal power consumption and simplified deployment. It integrates natively with Arista EOS (minimum version 4.23.0) and CloudVision for seamless management, is hot-swappable for maximum uptime, and complies with industry open standards for broad interoperability. Part of Arista's comprehensive 400GE copper and optical connectivity portfolio, this cable is fully backed by Arista Support. Get it now at iptrading.com.au — authentic hardware, reliable service.

Features

- Passive DAC design — no active components, ultra-low power consumption
- Breakout configuration splits one 400GBASE-CR8 QSFP-DD port into two 200GBASE-CR4 QSFP connections
- 8 x 50G PAM-4 electrical lanes on QSFP-DD side; 4 x 50G PAM-4 per QSFP breakout
- Plug-and-Play operation with native integration into Arista EOS and CloudVision
- Hot-swappable for maximum uptime and simplified field servicing
- Cost-efficient alternative to active optical cables for short-reach data centre interconnects
- Compliant with industry open standards for broad interoperability
- Suitable for top-of-rack and rack-to-rack short-reach deployments
- Part of Arista's comprehensive 400GE copper and optical connectivity portfolio
- Fully backed by Arista Support

Warranty

Arista hardware products come with a 1-year limited hardware warranty, covering defects in materials and workmanship under normal use.
Extended Warranty Options:
IP Trading offers tailored extended warranty solutions and support packages for Arista products. Contact our team to explore options that align with your organisation's needs.
https://www.arista.com/assets/data/pdf/Warranty.pdf

All technical data should be verified on the manufacturer data sheets.

View full details

specs-tabs

Technical Specifications

FAQs

Datasheet

Technical Specifications

- Part Number: CAB-D-2Q-400G-2M
- Cable Type: Passive Twinax Direct Attach Copper (DAC)
- Connector End A: 1 x QSFP-DD (400GBASE-CR8)
- Connector End B: 2 x QSFP (200GBASE-CR4)
- Total Aggregate Speed: 400G
- Electrical Lanes (QSFP-DD side): 8 x 50G PAM-4
- Electrical Lanes per QSFP: 4 x 50G PAM-4
- Breakout Configuration: 1 x 400G to 2 x 200G
- Cable Length: 2 metres
- Minimum Arista EOS Version: 4.23.0
- Available Lengths in Series: 1m, 2m, 3m

FAQs

Q: What does the CAB-D-2Q-400G-2M breakout cable connect?
A: It connects a single 400GBASE-CR8 QSFP-DD port on one device to two separate 200GBASE-CR4 QSFP ports on two different hosts, switches, or servers, enabling flexible 400G-to-2x200G breakout connectivity.

Q: Is this an active or passive cable?
A: The CAB-D-2Q-400G-2M is a passive Direct Attach Copper (DAC) cable. It contains no active electronic components, resulting in lower power consumption, reduced latency, and simplified deployment compared to active optical alternatives.

Q: What Arista EOS version is required to use this cable?
A: A minimum of Arista EOS version 4.23.0 is required. The cable integrates natively with Arista EOS and CloudVision for full management and monitoring capability.

Q: What are the typical use cases for this cable in a data centre?
A: It is designed for short-reach rack-to-rack and top-of-rack interconnects in high-density data centre environments. It allows network architects to maximise port utilisation by splitting a single 400G uplink into two independent 200G connections.

Q: Can I purchase the Arista CAB-D-2Q-400G-2M in Australia from IP Trading?
A: Yes. IP Trading (iptrading.com.au) is an Australian B2B IT hardware reseller supplying authentic Arista cables and transceivers. You can order the CAB-D-2Q-400G-2M directly from iptrading.com.au with reliable local service.

Q: Is this cable available in other lengths?
A: Yes. The Arista 400G QSFP-DD to 2 x 200G QSFP DAC breakout cable series is available in 1m, 2m, and 3m lengths to suit different rack spacing and cabling requirements.

Datasheet

This product has a detailed PDF datasheet available. Open PDF datasheet in a new tab .

Your browser can’t display the embedded PDF. Click here to open it in a new tab.

Recently Viewed

  • Request for a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us