NVIDIA AOC Splitter, IB Twin Port HDR, 400Gb/s to 2x200Gb/s, OSFP to 2xQSFP56, 20m

NVIDIASKU: 7294128

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Sale price$2,698.71

Description

NVIDIA AOC Splitter, IB Twin Port HDR, 400Gb/s to 2x200Gb/s, OSFP to 2xQSFP56, 20m

Engineered for high-density data centers and AI-focused HPC environments, the NVIDIA AOC Splitter delivers a scalable, high-performance InfiniBand HDR interconnect with a compact, cable-friendly form factor. This Active Optical Cable (AOC) takes a single 400 Gbps HDR InfiniBand link and splits it into two parallel 200 Gbps channels, enabling efficient 2x200 Gbps connectivity across dual endpoints. With an OSFP interface on one end and two QSFP56 connectors on the other, this 20-meter fiber optic solution (65.62 ft) is ideal for server racks, GPU clusters, and accelerator-heavy workloads where space, cabling cleanliness, and deterministic latency matter. Designed to maintain signal integrity over the full 20-meter reach, the AOC Splitter supports HDR InfiniBand workloads common in modern data centers, AI training rigs, and high-performance computing clusters, delivering reliable throughput for bandwidth-intensive applications while reducing cable clutter and latency variability.

  • High-performance 400 Gb/s HDR InfiniBand twin-port splitter — Converts a single 400 Gbps HDR InfiniBand link into two independent 200 Gbps channels, enabling parallel workloads, improved traffic segmentation, and scalable interconnect layouts within dense GPU racks. This configuration is particularly beneficial for AI labs and HPC clusters that require simultaneous, high-bandwidth traffic across multiple endpoints without compromising signal integrity or latency. With HDR capabilities, you get robust performance for memory-bound and compute-bound tasks alike, supporting modern AI frameworks and data-intensive simulations with dependable throughput.
  • OSFP to 2xQSFP56 interface design — The dual-ended design provides an OSFP interface on the host side and two QSFP56 connections on the device side, delivering a streamlined path between HDR-capable switches or NICs and dual 200 Gbps targets. This layout simplifies topologies in switch-assisted GPU farms and storage arrays, reducing the need for multiple separate cables and minimizing rack footprint. The OSFP-to-QSFP56 configuration is purpose-built for modern data-center fabrics that rely on high-density, multi-link interconnects to maximize compute efficiency while preserving ease of deployment and serviceability.
  • 20-meter (65.62 ft) reach with fiber-optic reliability — The 20-meter length provides flexible placement within racks and across adjacent enclosures, supporting common data-center layouts where devices aren’t adjacent. The fiber-optic AOC construction minimizes electromagnetic interference and cross-talk, delivering consistent bit error rates and stable link quality across the full distance. This reach is ideal for interconnecting servers, accelerators, storage nodes, and top-of-rack switches in mid- to large-scale deployments, all while maintaining tight signal budgets and predictable performance margins.
  • HDR InfiniBand-ready performance for GPU-intensive workloads — Built to align with InfiniBand HDR standards, this AOC Splitter is optimized for high-bandwidth, low-latency compute environments. HDR InfiniBand delivers the throughput needed for large-scale AI training runs, real-time analytics, and simulation workloads, enabling fast data movement between compute nodes and accelerators. By providing dual 200 Gbps channels from a single 400 Gbps link, it supports more complex network topologies without sacrificing reliability or consistency in throughput, making it suitable for cutting-edge HPC clusters and enterprise AI infrastructure.
  • Robust, plug-in reliability with simplified maintenance — This NVIDIA AOC Splitter is designed for durable operation in data-center environments, with a focus on quick installation, straightforward maintenance, and reduced cabling complexity. The twin-port HDR configuration minimizes the number of physical connectors and reduces cable routing challenges, helping technicians complete deployments faster and with fewer potential failure points. Its fiber-optic construction also contributes to improved durability against electromagnetic interference, making it a dependable choice for dense, mission-critical compute environments.

Technical Details of NVIDIA AOC Splitter

  • Data rate: 400 Gbit/s aggregate, split into two 200 Gbit/s channels
  • Interface configuration: OSFP (one end) to 2x QSFP56 (two ends)
  • Cable type: Active Optical Cable (AOC) / fiber optic interconnect
  • Length: 20 meters (65.62 feet)
  • Port configuration: IB Twin Port HDR designed for InfiniBand HDR environments
  • Applications: Data centers, GPU clusters, HPC racks, AI training and inference farms

How to Install NVIDIA AOC Splitter

  • Prepare the environment: Verify that your hardware supports HDR InfiniBand with OSFP and QSFP56 interfaces. Ensure both host and target devices are powered down and properly grounded before handling optic cables to prevent electrostatic discharge.
  • Plan the topology: Determine which device will host the OSFP connection and which devices will receive the two QSFP56 connections. Confirm that the path length (~20 meters) aligns with your rack layout and that the cable can be routed without sharp bends or excessive tension.
  • Connect the OSFP end: Attach the OSFP connector securely to the HDR-capable host or switch port. Confirm a solid physical engagement and ensure the connector is aligned properly to prevent damage to the port or insert.
  • Connect the dual QSFP56 ends: Attach each QSFP56 connector to the corresponding 200 Gbps ports on the target devices. Verify that each connector is firmly seated and that there is no undue twisting or bending along the cable run.
  • Power up and validate: Restore power to the equipment and monitor link status indicators. Run a basic throughput test or IB diagnostic to verify that both 200 Gbps channels are active and that the aggregate 400 Gbps link is functioning as expected. If any link issues arise, reseat connectors and perform a path inspection for any micro-bends or contamination on the ferrules.

Frequently Asked Questions

  • Q: What is the NVIDIA AOC Splitter?
    A: It’s an Active Optical Cable configuration that takes a single 400 Gbps HDR InfiniBand link and splits it into two parallel 200 Gbps channels, using an OSFP interface on one end and two QSFP56 connections on the other to support dual-200G endpoints.
  • Q: What does HDR mean in this context?
    A: HDR stands for High Data Rate InfiniBand, a standard that provides high throughput (up to 400 Gbps per link) and low-latency characteristics suitable for data-center, AI, and HPC workloads. The split adapter maintains HDR signaling across both 200 Gbps channels.
  • Q: What devices are compatible with this splitter?
    A: Compatible devices include HDR InfiniBand switches and NICs that support OSFP on the host side and QSFP56 connections on the device side. Always verify that your hardware supports the 400 Gbps HDR InfiniBand tier and the OSFP/QSFP56 interface combination before purchase.
  • Q: How long is the cable?
    A: The active optical cable is 20 meters in length, equivalent to 65.62 feet, which suits mid-to-large scale rack layouts and inter-rack deployments.
  • Q: How do I troubleshoot installation issues?
    A: Start by ensuring proper seating of both OSFP and QSFP56 connectors, checking for tight, straight runs with no sharp bends. Confirm device port configurations and IB settings match the 400 Gbps HDR specification. If problems persist, reseat all connections, inspect the fiber for contamination, and test with a known-good accessory to isolate whether the issue lies with the cable or the devices.
  • Q: Is this splitter backward-compatible with non-HDR InfiniBand hardware?
    A: The NVIDIA AOC Splitter is designed for HDR InfiniBand environments. For non-HDR hardware, operation cannot be guaranteed, and performance may be limited or unsupported. Always confirm that your network fabric supports HDR capabilities and the OSFP/QSFP56 interface pairing before deployment.

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