TIFNEX catalog
InfiniBand switches
NVIDIA Quantum InfiniBand switches for HDR and NDR AI and HPC clusters.
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Buying guide
InfiniBand switches from TIFNEX
InfiniBand delivers the lowest latency and highest efficiency for GPU training clusters. TIFNEX supplies NVIDIA Quantum and Quantum-2 InfiniBand switches with HDR 200G QSFP56 and NDR 400G OSFP ports.
We supply the full interconnect alongside the switches: 800G OSFP transceivers, breakout cables and MPO trunks. Read our AI data center networking guide for InfiniBand versus Ethernet.
Common questions
InfiniBand or Ethernet for an AI cluster?
InfiniBand gives the lowest latency and is the default for large NVIDIA training clusters. RoCE Ethernet is a good choice where teams prefer standard Ethernet operations. Our AI networking guide compares them.
What optics does a Quantum-2 NDR switch use?
800G twin-port OSFP finned-top modules, such as 2xSR4 or 2xDR4, connecting to 400G OSFP or QSFP112 on the adapters.
Can you supply the full cluster interconnect?
Yes. We quote switches, optics, cables and fiber together, sized to your GPU count.
Have a bill of materials?
Send part numbers, quantities and target platforms. An engineer replies within 24 hours.