Arista AOC-D-D-400G-3M | 400G QSFP-DD AOC, 3m, MMF 850nm, 8x 50G PAM-4

Q: What platforms is the AOC-D-D-400G-3M compatible with?
A: This AOC is compatible with Arista 400G platforms featuring QSFP-DD ports, including the Arista 7060X4 and 7388X5 series switches. As a QSFP-DD MSA compliant cable, it is also interoperable with third-party equipment that adheres to the QSFP-DD MSA standard.

Q: What is the maximum cable length available in this AOC series?
A: The Arista 400G AOC series supports cable lengths from 1 metre up to 30 metres, covering most intra-rack and top-of-rack to adjacent-rack deployments. The AOC-D-D-400G-3M covers the 3-metre reach, ideal for standard rack-to-rack links within a single row.

Q: How does an Active Optical Cable differ from a DAC (Direct Attach Copper) cable?
A: A Direct Attach Copper (DAC) cable uses copper conductors and is limited to very short reaches (typically 1–5m) at 400G. An Active Optical Cable (AOC) uses multimode fibre with integrated active optical components at each end, enabling longer reaches (up to 30m) with lower signal attenuation and reduced weight compared to copper.

Q: Does this cable support Digital Diagnostic Monitoring?
A: Yes, the AOC-D-D-400G-3M supports Digital Diagnostic Monitoring (DDM), allowing network management systems to read real-time metrics such as optical power levels and temperature directly from the cable. This integrates natively with Arista EOS and CloudVision for operational visibility.

Q: Can I purchase the AOC-D-D-400G-3M in Australia?
A: Yes. iptrading.com.au stocks Arista optics and cables and ships across Australia. As an Australian-owned IT hardware reseller operating since 2001, IP Trading offers competitive pricing, local support, and fast fulfilment. Contact the team directly for volume pricing or project-based quotes.

Q: Is this AOC suitable for high-performance computing (HPC) environments?
A: Absolutely. The AOC-D-D-400G-3M is well-suited to HPC interconnects, data centre leaf-spine fabrics, and top-of-rack deployments where high bandwidth density and low power consumption per gigabit are critical. The 400G throughput and PAM-4 signalling make it ideal for AI/ML training clusters and hyperscale switching environments.