• Arista CAB-D-D-400-2.5 400G QSFP-DD to QSFP-DD black braided twinax cable, 2.5m
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Arista

Arista CAB-D-D-400-2.5 | 400G QSFP-DD DAC Cable, 400GBASE-CR8, 2.5m

CAB-D-D-400-2.5

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Description

This 400G direct attach copper cable has QSFP-DD connectors at both ends and supports 400GBASE-CR8 links. It uses passive twinax copper construction and is 2.5m long, making it a short-reach option for connecting 400G ports between Arista switches within the same rack or adjacent racks. A direct attach cable avoids the need for separate optical transceivers and fibre patching on short links.

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

Features

- Passive twinax copper direct attach construction
- QSFP-DD connectors on both ends
- Supports 400GBASE-CR8 links
- Suited to short-reach connections between Arista switches

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

- Connector type: QSFP-DD to QSFP-DD
- Data rate: 400G
- Standard: 400GBASE-CR8
- Media: Copper twinax direct attach
- Length: 2.5m

FAQs

Q: What length is this cable?
A: This cable is 2.5m long, suited to short links within a rack or between adjacent racks.

Q: What connectors does this cable use?
A: It has QSFP-DD connectors at both ends, so it connects two QSFP-DD 400G ports directly.

Q: Does this cable need separate optical transceivers?
A: No. It is a direct attach copper cable with the connectors built in, so no separate transceivers or fibre patch cables are required.

Q: Which standard does this cable support?
A: It supports the 400GBASE-CR8 standard over copper twinax.

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