Arista CAB-D-2Q-200-2.5 | 200G QSFP-DD to 2x 100G QSFP Breakout DAC, 2.5m

Q: What does the CAB-D-2Q-200-2.5 connect?
A: It connects a single 200GBASE-CR8 QSFP-DD port on one end to two independent 100GBASE-CR4 QSFP ports on the other end, enabling a 2×100G breakout over a 2.5-metre passive twinax copper cable.

Q: Does this cable require any special configuration on Arista switches?
A: Yes — the QSFP-DD port must be configured for 200G operation using 8×25G NRZ electrical lanes. Arista EOS version 4.23.0 or later is required to support this cable.

Q: Is this an active or passive cable?
A: It is a passive twinax copper DAC, meaning it contains no active electronic components. It draws no additional power beyond what the host port supplies, resulting in lower latency and energy consumption compared to active optical alternatives.

Q: What data centre use cases is this cable suited for?
A: The CAB-D-2Q-200-2.5 is ideal for high-density spine-leaf architectures, top-of-rack server-to-switch connections, and storage fabric interconnects where breakout from a high-speed 200G uplink to multiple 100G endpoints is required.

Q: Can I purchase this cable in Australia from IP Trading?
A: Yes — IP Trading (iptrading.com.au) stocks Arista DAC cables including the CAB-D-2Q-200-2.5 and offers fast dispatch across Australia. Contact our team for volume pricing or compatibility advice.

Q: What warranty is included with this cable?
A: The CAB-D-2Q-200-2.5 includes a 1 Year Limited Hardware Warranty covering parts, repair, or replacement with a 10 business day turnaround. Optional Next Business Day and 4-hour advance hardware replacement support is also available.