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NVIDIA

NVIDIA 900-9X7AX-003NMC0 | ConnectX-7 | 400GbE QSFP112 | PCIe Gen5 x16 | RoCEv2 | SR-IOV | GPUDirect | PTP 1588v2

SKU:900-9X7AX-003NMC0

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Description

Ultra-high-performance Ethernet adapter delivering up to 400GbE over QSFP112 for AI clusters, storage, and cloud scale networking. PCIe Gen5 x16 host interface and extensive hardware offloads (NVMe-oF/TCP, OVS, TLS/IPsec, RoCEv2) maximize throughput while minimizing CPU usage. Supports IEEE 1588v2 PTP timing, advanced congestion control, and breakout options such as 4x100G where supported. Interoperable with QSFP family optics/cables rated for the required speed.

Features

- 400GbE throughput for AI, HPC, and cloud-scale deployments
- PCIe Gen5 x16 host bandwidth for maximum performance
- Comprehensive hardware offloads for storage, networking, and crypto
- Low-latency RDMA via RoCEv2
- Advanced congestion control and deep telemetry
- Breakout flexibility to 4x100G where supported

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Which transceivers and cables are supported at 400GbE?
A: Use QSFP112 optics or DAC/AOC rated for 400GbE. The adapter can operate at lower speeds (e.g., 200G/100G) with appropriate modules or breakout cables where supported.

Q: Does it support RDMA and virtualization features?
A: Yes. It supports RoCEv2 and SR-IOV for high-performance and highly virtualized environments.

Q: Is PCIe Gen5 required?
A: A PCIe Gen5 x16 slot is recommended for full performance. The adapter can link at lower PCIe generations with reduced bandwidth.

Q: Can I break out 400G to multiple lower-speed links?
A: Yes. Breakout such as 4x100G is supported with compatible breakout cables and optics, subject to platform and firmware support.

Q: Does it provide precise timing for time-sensitive workloads?
A: Yes. It supports IEEE 1588v2 PTP with hardware timestamping.

Technical Specifications

- Model family: ConnectX-7 Ethernet
- Port interface: QSFP112 (400GbE capable)
- Max link rate: up to 400 Gb/s per port
- Electrical signaling: 112G PAM4 lanes
- Breakout support: up to 4x100GbE where platform and optics permit
- Host interface: PCIe Gen5 x16
- RDMA: RoCEv2 for ultra-low latency
- Virtualization: SR-IOV with multiple virtual functions
- Offloads: NVMe-oF/TCP, OVS datapath, RSS, TSO/LRO, checksum
- Security: inline TLS/IPsec acceleration
- Timing: IEEE 1588v2 PTP, hardware timestamping
- Telemetry and control: ECN/DCQCN with rich hardware counters
- Compatibility: QSFP112/56/28 optics and DAC/AOC as supported by speed mode

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