In AI cluster environments, NVIDIA high-speed cables demonstrate their value through optimized performance characteristics. A major hyperscaler reported 25% improvement in total cluster efficiency by implementing purpose-built DAC solutions for GPU-to-GPU communications. A Direct Attach Cable (DAC) is a factory-terminated high-speed cable assembly that behaves like "fixed" transceivers with a permanently attached copper or fiber cable. Media: Copper DAC: shielded twinax conductors (typically 24-30 AWG). These cables come pre-terminated with SFP (Small Form-factor Pluggable) or QSFP (Quad Small Form-factor Pluggable) connectors which simplify network setup. They shine on short, high-bandwidth links inside or between racks where low latency, simple deployment and predictable cost matter more than cable reach. When you move beyond a few metres, active. As data centers continue to scale and demand faster, more reliable connectivity, high-speed copper solutions such as DAC (Direct Attach Cable), ACC (Active Copper Cable), and AEC (Active Electrical Cable) have become critical components in short- to medium-distance interconnects. High-speed copper. What is ACC & AEC? There are various connection solutions available for switching networks, such as optical modules + optical fibers, Active Optical Cables (AOC), and Direct Attach Cables (DAC). DAC can be further categorized into active ACC, AEC, and passive DAC. So, what exactly are these.