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NVIDIA

NVIDIA 900-9X663-0083-SQ0 | ConnectX-6 Dx Dual 25GbE Network Card, PCIe 4.0 x8

SKU:900-9X663-0083-SQ0

Stock Status: Enquire

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Description

The NVIDIA ConnectX-6 Dx is an advanced SmartNIC designed to accelerate mission-critical data center applications including virtualization, security, storage, and machine learning workloads. This dual-port 25GbE adapter features PCIe 4.0 x8 connectivity with hardware-based cryptographic acceleration, secure boot capabilities, and active cooling for reliable operation. With RoCE v2 RDMA, SR-IOV virtualization, and advanced offload technologies, it delivers exceptional performance while reducing CPU overhead in cloud and enterprise environments.

Features

Dual-port 25GbE SFP28 connectivity with 1/10/25 Gb/s auto-negotiation
- PCIe 4.0 x8 host interface delivering 16.0GT/s per lane
- RoCE v2 hardware offload for high-performance RDMA
- Zero Touch RoCE deployment without PFC or ECN requirements
- SR-IOV and VirtIO hardware virtualization support
- ASAP2 technology for virtual switch/router acceleration
- Hardware offload for OVS, VXLAN, GENEVE, and MPLS encapsulation
- Stateful connection tracking offload for hardware-based L4 firewall
- IPsec and TLS inline encryption/decryption acceleration
- AES-XTS block-level encryption/decryption for data-at-rest
- NVMe-over-Fabrics target and initiator offloads
- Precision Time Protocol (PTP) IEEE 1588v2 support
- GPUDirect RDMA for efficient GPU-to-GPU communication
- Configurable congestion control with programmable algorithms
- Hardware Root-of-Trust and secure boot capabilities
- Active cooling system for reliable thermal management
- Up to 8 million flow rules for advanced packet processing

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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Technical Specifications

FAQs

Technical Specifications

Model: MCX621202AC-ADAT
- Interface: Dual-port SFP28
- Data Rate: 25GbE / 10GbE / 1GbE auto-negotiation
- Host Interface: PCIe 4.0 x8 (16.0GT/s SerDes)
- Total Bandwidth: Up to 50 Gbps aggregate
- Form Factor: PCIe full-height, half-length (HHHL)
- Dimensions: 6.01 x 2.71 inches (152.90 x 68.90mm)
- Cooling: Active cooling with onboard fan
- Bracket: Tall bracket included
- Security: Hardware Root-of-Trust, Secure Boot, RSA cryptography
- Crypto Acceleration: IPsec and TLS inline encryption/decryption, AES-XTS offload
- RDMA: RoCE v2 with Zero Touch RoCE support
- Virtualization: SR-IOV and VirtIO hardware offload
- Management: Secure firmware update, cloning protection

FAQs

Q: What are the primary use cases for the ConnectX-6 Dx adapter?
A: This adapter is ideal for virtualized cloud environments, software-defined networking (SDN/NFV), NVMe-over-Fabrics storage deployments, machine learning workloads, and secure data center applications requiring hardware-accelerated encryption and RDMA capabilities.

Q: Does this adapter support RDMA and what are the benefits?
A: Yes, it supports RoCE v2 (RDMA over Converged Ethernet) with Zero Touch RoCE capability, allowing high-performance, low-latency data transfer without requiring special network configuration like PFC or ECN. This reduces CPU overhead and improves application performance.

Q: What virtualization features does this SmartNIC provide?
A: The adapter includes ASAP2 (Accelerated Switching and Packet Processing) technology with hardware offload for SR-IOV and VirtIO, supporting up to 8 million flow rules. It accelerates virtual switches and routers, OVS, VXLAN, GENEVE tunneling, and connection tracking for stateful firewalls.

Q: What security capabilities are built into this adapter?
A: The adapter features hardware-based IPsec and TLS inline encryption/decryption offload, AES-XTS data-at-rest encryption, stateful connection tracking for DoS protection, hardware root-of-trust with secure boot, and secure firmware updates using RSA cryptography.

Q: Is this adapter compatible with NVMe-over-Fabrics storage?
A: Yes, the ConnectX-6 Dx includes NVMe-oF target and initiator hardware offloads with support for T10-DIF/PI and CRC32/CRC64 signature offloads, enabling efficient remote NVMe storage access with minimal CPU utilization and reduced latency.

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