Overview:
High-performance computing (HPC) environments depend on low-latency, high-bandwidth interconnects to deliver on performance. Yet OEM cabling solutions often constrain scalability due to cost. This white paper explores how SL Cables’ high-quality AOC and DAC products help HPC environments scale affordably—without compromising performance.
1. Understanding AOC vs. DAC
- DAC (Direct Attach Copper): Short reach, passive/active, low power, cost-effective
- AOC (Active Optical Cable): Longer reach, better EMI protection, lighter
2. HPC Connectivity Requirements
- Low latency for GPU-to-GPU and node-to-node communication
- High bandwidth (25G, 100G, 200G+) for parallel computing workloads
- Thermally efficient cabling to support dense server deployments
3. Why Third-Party Works for HPC
- SL Cables offers AOC/DAC products tested with NVIDIA, AMD, and InfiniBand environments
- Cables fully compliant with IEEE and IBTA standards
- Reduced cost enables broader node deployment and future-proofing
4. Use Case: Academic Supercomputing Center
A leading U.S. research university upgraded 500+ server connections with SL Cables’ AOC/DACs, saving 50% on interconnect costs while improving cable management and airflow.
