The rise of artificial intelligence (AI), machine learning (ML), and high-performance computing (HPC) is transforming network demands. These environments require ultra-fast, low-latency interconnects between GPUs, servers, and storage systems to process massive datasets in real time. Active Optical Cables (AOC) are playing a critical role in enabling these high-bandwidth, longer-distance links by combining fibre-optic performance with the simplicity of pre-terminated cabling.

GPU-to-GPU and Server Interconnects

In HPC and AI clusters, GPUs often need to communicate directly across racks to share workloads efficiently. AOC cables, supporting speeds up to 800G, provide the bandwidth required for parallel processing and high-volume data exchange while extending connectivity beyond the reach of DAC cables. This ensures that performance is not bottlenecked by cabling limitations.

High-Bandwidth Storage Networking

AI and HPC applications frequently rely on fast access to large-scale storage systems. AOC cables deliver consistent, high-speed connectivity between compute nodes and storage arrays across longer distances, helping to maintain low latency for critical workloads such as model training and real-time analytics.

Energy-Efficient Performance at Scale

Clusters with thousands of interconnected GPUs and servers demand both performance and efficiency. By integrating the optical transceivers into the cable assembly, AOCs reduce power draw compared to discrete optics while simplifying inventory and deployment. This makes them more energy-efficient and cost-effective for large-scale HPC environments.

Flexible Deployment Across Data Halls

HPC and AI clusters are often spread across multiple racks or even rows within a facility. With reach of up to 100 metres, AOC cables allow operators to design flexible layouts without compromising on speed or reliability. Their factory-terminated design ensures rapid, error-free installation even in large-scale deployments.

Reliability for Critical Research and Enterprise Applications

From scientific research to financial modelling and enterprise AI adoption, uptime and data integrity are paramount. AOC cables provide stable, high-speed optical connectivity with fewer points of failure than traditional transceiver + fibre solutions, giving operators confidence in mission-critical workloads.

Why HPC and AI Teams Choose Carritech AOC Cables

Carritech supplies a full portfolio of AOC solutions designed for HPC and AI environments, from 25G to 800G. All products are tested for interoperability with major vendors, including NVIDIA, Mellanox, Cisco, and Arista, ensuring seamless integration into compute clusters. With local stock and responsive support in the UK and EU, we help organisations deploy and scale their high-performance environments with confidence.

Key benefits for HPC and AI include:

• Unmatched bandwidth – high-speed connections up to 800G for GPU and server clusters.
• Extended reach – support for longer distances than DAC, ideal for multi-rack environments.
• Energy efficiency – lower power consumption than discrete optics.
• Optimised for compute workloads – designed for HPC, AI, ML, and data-intensive applications.
• Simplified deployment – plug-and-play design with pre-tested assemblies.
• Vendor compatibility – tested across leading compute and networking vendors.