Arista CAB-Q-Q-3M | 40G QSFP+ DAC Twinax Cable, 40GBASE-CR4, 3m Passive

Q: What is the maximum cable length supported by the CAB-Q-Q-3M?
A: The CAB-Q-Q-3M supports a cable length of 3 metres, making it suitable for intra-rack and adjacent-rack connections in data centre environments. For longer distances, an active DAC or optical transceiver solution would be required.

Q: Is the CAB-Q-Q-3M compatible with non-Arista switches?
A: The CAB-Q-Q-3M is compliant with QSFP+ MSA and SFF-8436 standards, providing broad interoperability. However, it is natively validated and fully supported on Arista EOS-based platforms. Compatibility with third-party switches may vary depending on the vendor's firmware.

Q: Does this cable require any external power or transceivers?
A: No. As a passive direct attach copper cable, the CAB-Q-Q-3M requires no active electronics or external power beyond the minimal 1.5W drawn from each QSFP+ host port. No separate transceivers are needed.

Q: What protocols and standards does the CAB-Q-Q-3M support?
A: The cable supports 40GbE (40GBASE-CR4), 10GE applications, and QDR InfiniBand. It is compliant with IEEE 802.3ba, QSFP+ MSA, SFF-8436, and RoHS environmental regulations.

Q: Can I purchase the Arista CAB-Q-Q-3M in Australia through IP Trading?
A: Yes. IP Trading Australia stocks and supplies Arista cables and optics including the CAB-Q-Q-3M. As an Australian-owned and operated B2B IT reseller since 2001, iptrading.com.au offers competitive pricing and local support for data centre procurement.

Q: Is the CAB-Q-Q-3M hot-swappable?
A: Yes. Both ends feature hot-swappable QSFP+ connectors, allowing the cable to be inserted or removed without powering down the connected equipment, simplifying maintenance and upgrades in live environments.