What Ethernet speeds does the ConnectX-6 Dx EN support?

Dual QSFP56 ports support 1/10/25/40/50/100GbE natively with breakout to 4x25GbE or 2x50GbE. Standards include 100GBASE-SR4/CR4/LR4, 50GBASE-R4, 40GBASE-SR4/CR4, and 25GBASE-R ensuring compatibility across access, aggregation, and spine layers.

Does this adapter support RDMA over Ethernet?

Yes, full RoCE v2 support with hardware offload for zero-copy data transfers. Includes GPUDirect RDMA for NVIDIA GPU communication and NVMe-oF acceleration for disaggregated storage eliminating TCP/IP stack overhead in HPC and AI workloads.

What virtualization features are available?

SR-IOV with 256 virtual functions per physical port, VirtIO paravirtualization for KVM, and VMware NetQueue. Supports DPDK accelerated networking and container networking with high VF-to-PF scale for dense VM/container deployments.

Is PCIe 3.0 compatible?

Fully backward compatible with PCIe Gen3 x16 at reduced throughput. PCIe 4.0 provides double bandwidth essential for line-rate 100GbE while maintaining interoperability with transitional server generations during fabric upgrades.

What security features does it include?

Secure Boot with hardware root-of-trust prevents tampered firmware execution. Crypto disabled variant suitable for software-defined security implementations while maintaining boot integrity compliance for regulated environments.

What is the typical power consumption?

19.5W typical under PCIe Gen4 with passive cables, maximum 26.6W. QSFP56 ports provide up to 5W each for active optics/cables. Efficient for dense 100GbE deployments without requiring server PSU upgrades.

900-9X6AG-0076-ST0 - NVIDIA 900-9X6AG-0076-ST0 100GbE Dual QSFP56 PCIe4 Network Adapter

Name: NVIDIA 900-9X6AG-0076-ST0 100GbE Dual QSFP56 PCIe4 Network Adapter
Brand: NVIDIA
SKU: 900-9X6AG-0076-ST0
Price: 2282 USD
Availability: InStock

900-9X6AG-0076-ST0 - NVIDIA 900-9X6AG-0076-ST0 100GbE Dual QSFP56 PCIe4 Network Adapter | US IT Hardware

Product overview

The NVIDIA ConnectX-6 Dx EN network adapter (900-9X6AG-0076-ST0) delivers dual-port 100GbE connectivity through QSFP56 interfaces on a PCIe 4.0 x16 platform, optimized for hyperscale cloud and data center environments. Featuring the ConnectX-6 Dx controller, it provides hardware acceleration for RoCE v2 RDMA, NVMe-oF storage fabrics, and advanced offloads including TSO, LRO, VXLAN, and GENEVE encapsulation. This configuration includes crypto disabled with Secure Boot enabled, suitable for environments prioritizing boot integrity over hardware encryption acceleration. Key capabilities include SR-IOV and VirtIO virtualization support for efficient multi-tenant deployments, programmable match-action engine via DOCA SDK, and comprehensive telemetry for network observability. The adapter supports multi-speed Ethernet from 1GbE to 100GbE per port, with SerDes technology enabling PAM4 signaling at 50GT/s. Power consumption remains efficient at ~25W typical, with passive heatsink cooling for dense rack deployments. Designed for high-frequency trading, real-time analytics, AI/ML training clusters, and distributed storage systems, ConnectX-6 Dx EN ensures sub-microsecond latencies and line-rate performance across both ports simultaneously. Backward compatibility with PCIe Gen3 extends deployment flexibility across modern and transitional server architectures from major OEMs including Dell, HPE, and Lenovo.

Dual 100GbE QSFP56 ports.
PCIe 4.0 x16 interface.
RoCE v2 RDMA, NVMe-oF.
SR-IOV 256 VFs/port.
19.5W typical power.
Crypto disabled Secure Boot.

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Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	900-9X6AG-0076-ST0
Brand	NVIDIA
Condition	New
Controller	NVIDIA ConnectX-6 Dx EN
Device Type	Network Adapter - Dual-Port 100GbE Ethernet NIC
RDMA Support	RoCE v2 over Ethernet
Virtualization	SR-IOV ¦ VirtIO ¦ VMware NetQueue
Hardware Offloads	TSO/LRO/LSO ¦ Checksum offload ¦ RSS ¦ VXLAN/GENEVE/NVGRE
Security Features	Secure Boot enabled ¦ Crypto disabled
Networking Standards	100GBASE-CR4/KR4/SR4 ¦ 50GBASE-R4 ¦ 40GBASE-CR4/SR4 ¦ 25GBASE-R

Compatible systems

Broad compatibility with PCIe 4.0 enterprise servers from Dell, HPE, Lenovo. Native driver support in major Linux distros and VMware ESXi.

Dell PowerEdge
Model: R750
Form factor: 2U Rack
Generation: 15th Gen
PCIe 4.0 slots, iDRAC 9 firmware
HPE ProLiant
Model: DL380
Form factor: 2U Rack
Generation: Gen10 Plus
PCIe Gen4 riser required
Lenovo ThinkSystem
Model: SR650
Form factor: 2U Rack
Generation: V2
PCIe 4.0 slots supported

Best for

Hyperscale Cloud Infrastructure
RoCEv2 RDMA over converged Ethernet for containerized microservices in Kubernetes clusters with low-latency east-west traffic between compute nodes.
AI/ML Training Clusters
High-throughput GPU-direct storage access via NVMe-oF for distributed training frameworks like PyTorch DDP and Horovod across NVIDIA DGX/HGX systems.
High-Frequency Trading
Sub-microsecond latency RDMA with hardware timestamping for market data feeds and order execution in financial trading platforms.

Details

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Dimensions	Length: 142mm ¦ Height: 68.9mm
Form Factor	Full-height full-length (FHFL) ¦ Tall bracket

Interface	PCI Express 4.0 x16 ¦ Backward compatible PCIe 3.0/2.0
Port Configuration	2 x 100 Gigabit QSFP56 ¦ Multi-speed: 1/10/25/40/50/100GbE

NVIDIA 900-9X6AG-0076-ST0 100GbE Dual QSFP56 PCIe4 Network Adapter

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Storage

Security

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions