News — Buying Guide
Flat-Top or Finned-Top OSFP? How to Tell Which Module Your ConnectX-7 Actually Needs
The flat-top module goes in the NIC, the finned-top goes in the switch. Here's the rule, the NVIDIA and Mellanox part numbers, and the third variant almost nobody stocks.
DAC vs. AOC vs. AEC: Which Cable Goes Where in an AI Rack?
DAC, AOC, or AEC — confused which interconnect fits your AI cluster? A clear, practical breakdown by distance, power, and rack position, with compatible cable options.
OSFP vs. QSFP-DD: A Practical Breakdown for GPU Clusters
OSFP and QSFP-DD aren't interchangeable. A practical guide to the differences, which NVIDIA and switch hardware uses each, and how to avoid a mismatched order.
OSFP DAC Cables: What They Are, When to Use One, and When They'll Quietly Ruin Your Week
A short, plain-English guide to OSFP direct attach copper: what it is, how far 400G and 800G passive cable really goes, flat top vs finned top, and the five deployment scenarios where it is the obvious right answer.