• Arista CAB-O-2Q-400G-1M OSFP to 2xQSFP56 400G twinax DAC cable
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Arista

Arista CAB-O-2Q-400G-1M | 400G OSFP to 2x 200G QSFP56 DAC, 1 Meter, Passive Twinax Cable

CAB-O-2Q-400G-1M

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Description

This passive twinax copper breakout cable connects one 400G OSFP port to two 200G QSFP56 ports (400GBASE-CR8 to 2 x 200GBASE-CR4) over a 1 meter length. It suits short in-rack or adjacent-rack links where a low-cost copper connection is preferred over optics. The breakout design allows an OSFP switch port to be split into two 200G links, including connections to equipment with 200G QSFP ports.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Part of Arista's 400G DAC range, which is compliant with IEEE standards and industry MSAs
- OSFP end is for OSFP systems; the QSFP-DD equivalent is CAB-D-2Q-400G-1M
- Breakout DACs can connect Arista switches to non-Arista equipment with 200G QSFP ports
- Passive copper construction with no optics required

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

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

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Technical Specifications

FAQs

Technical Specifications

- 400GBASE-CR8 OSFP to 2 x 200GBASE-CR4 QSFP (QSFP56) breakout
- Passive twinax copper cable
- Length: 1 meter
- Connector type: OSFP to 2x QSFP
- Wavelength: n/a (copper)
- Each connector has an EEPROM; the 400G cable EEPROMs indicate support for up to 50G PAM-4 lane rates

FAQs

Q: What does this cable connect?
A: It connects one 400G OSFP port to two 200G QSFP56 ports as a breakout, using 400GBASE-CR8 on the OSFP end and 200GBASE-CR4 on each QSFP end.

Q: Is this a passive or active cable?
A: It is a passive twinax copper DAC with a 1 meter reach, intended for short in-rack or adjacent-rack links.

Q: Can I use this with QSFP-DD ports?
A: This cable has an OSFP end for OSFP systems. The QSFP-DD equivalent is CAB-D-2Q-400G-1M.

Q: Can it connect to non-Arista equipment?
A: Breakout DACs of this type can connect Arista switches to non-Arista equipment that has 200G QSFP ports.

Q: What lane rates are supported?
A: The connector EEPROMs on the 400G cable indicate support for up to 50G PAM-4 lane rates.

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