What you'll find in the full guide: → Distance-based cable selection: DAC, ACC, AEC, AOC, and optical transceivers — when to use each and why → Power and cooling impact: DAC runs at 100x less power cost than optical at scale → IHS vs RHS form factors: which modules fit. What you'll find in the full guide: → Distance-based cable selection: DAC, ACC, AEC, AOC, and optical transceivers — when to use each and why → Power and cooling impact: DAC runs at 100x less power cost than optical at scale → IHS vs RHS form factors: which modules fit. DAC · ACC · AEC · AOC · Optical Transceivers — the complete engineer's framework for choosing the right interconnect for every link in your AI data center. 800G · AI Interconnects · NVIDIA · Updated February 2026. Why 800G Broke the Old Playbook At 400G, interconnect selection was a two-step. For AI clusters and high-density data centers, selecting the right 800G interconnect is a balance of reach, power, and cost. For short-reach connections under 3 meters, 800G Passive Direct Attach Copper (DAC) is the superior choice, offering zero power consumption, the lowest possible latency, and. The next key development is 800G, and the industry is already gearing up to deploy this next generation of client optics in hyperscale data centers. By consolidating 16 optical fibers into a single MT ferrule, this architecture provides a direct, one-to-one lane mapping for advanced SR8 and DR8 transceivers. We published the complete 800G Data Center Interconnect Selection Guide on our blog — here's the decision framework in one visual. These challenges are forcing innovation to happen at all levels, including pluggable modules. But pluggable modules still.