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NVIDIA ConnectX-6 Lx 25/50G Ethernet SmartNIC MCX623106AN-CDAT

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NVIDIA ConnectX-6 Lx 25/50G Ethernet SmartNIC MCX623106AN-CDAT

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Brand Name Mellanox
Model Number MCX631102AN-ADAT
Minimum Order Quantity 1pcs
Price Negotiate
Payment Terms T/T
Supply Ability Supply by project/batch
Delivery Time Based on inventory
Packaging Details outer box
Products Status Stock
Condition new and original
Technology Ethernet
Network Interface Two SerDes lanes supporting 25Gb/s per lane, for various port configurations: -2x 10/25 GbE -1x 50GbE
Host Interface PCIe Gen 4.0, 3.0, 2.0, 1.1 16.0, 8.0, 5.0, 2.5 GT/s link rate 8 lanes of PCIe MSI/MSI-X mechanisms Advanced PCIe capabilities
Speed 25Gbps
Connectors 2 x SFP28
Interface PCIe 4.0 x8
Detailed Product Description
NVIDIA ConnectX-6 Lx 25/50G Ethernet SmartNIC MCX623106AN-CDAT
Accelerate your enterprise or cloud data center with the NVIDIA® ConnectX®-6 Lx Ethernet smart network interface card. Delivering line-rate 25/50GbE connectivity, advanced RoCE (RDMA over Converged Ethernet), SDN acceleration via ASAP², and inline IPsec encryption. The MCX623106AN-CDAT offers secure boot, hardware root-of-trust, and OCP 3.0 form factor readiness for modern scalable infrastructure.
Product Overview
The NVIDIA ConnectX-6 Lx series (model MCX623106AN-CDAT) is engineered to meet the demands of modern enterprise and cloud data centers. It supports up to two ports of 10/25GbE or a single 50GbE port, with PCIe Gen 4.0 x8 host interface. This SmartNIC offloads CPU-intensive networking tasks, accelerates software-defined networking (SDN) data planes, and enhances security with inline crypto acceleration. With support for overlay tunnels (VXLAN, GENEVE, NVGRE) and advanced connection tracking, it reduces total cost of ownership while boosting east-west traffic performance.
Key Features
  • Line-rate performance: 75 million packets per second (Mpps), up to 50Gb/s total bandwidth
  • Zero-Touch RoCE (ZTR): Simplified RDMA deployment without PFC/ECN tuning, resilient and scalable
  • ASAP² acceleration: Accelerated Switch and Packet Processing for SDN & VNF offloads (OVS, VXLAN, MPLS, GTP)
  • Inline IPsec cryptography: AES-XTS 256/512-bit encryption/decryption, IPsec over RoCE support
  • Hardware root-of-trust (RoT): Secure boot, cryptographic firmware update, device-unique key and cloning protection
  • Stateful connection tracking: Layer 4 firewall offload, flow mirroring, sampling, and hierarchical QoS
  • Virtualization ready: SR-IOV, VirtIO acceleration, overlay offloads, programmable flexible parser
  • Remote boot options: PXE, iSCSI, UEFI for x86 and Arm servers
Advanced Technology Integration
NVIDIA ASAP² (Accelerated Switch and Packet Processing)
Offloads the entire SDN data plane to the SmartNIC, dramatically reducing CPU overhead in virtualized or containerized clouds. Supports VXLAN, GENEVE, NVGRE, plus MPLS and GTP for telecom NFV transitions.
Industry-leading RoCE with Zero-Touch RoCE (ZTR)
Enables out-of-the-box RDMA deployment on existing Ethernet fabrics without requiring Priority Flow Control (PFC) or Explicit Congestion Notification (ECN) configuration. This ensures resilience and efficient lossless networking at scale.
Inline Security Acceleration
IPsec encryption/decryption offload at line rate, plus stateful firewall connection tracking. Hardware root-of-trust guarantees secure firmware chain from boot to update, critical for supply chain protection.
Typical Deployments & Use Cases
  • Enterprise Data Centers: High-density virtualization, SDN fabric acceleration, low-latency storage (NVMe over Fabric via RoCE)
  • Cloud & Hyperscale Infrastructure: OpenStack, VxLAN offloads, container networking (VirtIO acceleration)
  • Telecom / NFV / Edge: GTP, MPLS offload enabling vEPC, vRAN and 5G user plane function (UPF)
  • HPC & AI Clusters: RoCE-based MPI collective communications, distributed training workloads
  • Secure Government & Finance: Inline IPsec and hardware RoT ensure data integrity and compliance
Platform & Software Compatibility
ConnectX-6 Lx works with leading server platforms, Linux distributions, Windows Server, and virtualization environments. Support for standard management interfaces including NC-SI, MCTP, PLDM for firmware updates and monitoring.
CategorySupported Options / Details
Host InterfacePCIe Gen 4.0 (up to 16 GT/s) x8, backward compatible with Gen3
Operating SystemsLinux (RHEL, Ubuntu, SLES), Windows Server, VMware ESXi, FreeBSD
VirtualizationSR-IOV, VirtIO, OVS offloads, KVM, Hyper-V
Management StandardsNC-SI, MCTP over SMBus/PCIe, PLDM (DSP0248, DSP0267), NCSI over RBT for OCP cards
Remote BootPXE, iSCSI, UEFI HTTP Boot, Secure Boot (UEFI)
Technical Specifications
ParameterSpecification
Product Model / MPNMCX623106AN-CDAT
Ports & Speed2x 10/25GbE or 1x 50GbE (SFP28 / QSFP28)
Total BandwidthUp to 50Gb/s
Packet Rate75 million packets per second (Mpps)
PCIe InterfacePCIe Gen 4.0 x8 (compatible with Gen3)
Form FactorOCP 3.0 Small Form Factor (SFF); also available as PCIe low-profile (confirm SKU)
Security OffloadsInline IPsec (AES-XTS 256/512), connection tracking (L4 firewall), hardware root-of-trust
RoCE SupportZero-Touch RoCE, ECN, PFC-free operation, RoCE congestion control
SDN / Overlay offloadASAP²: VXLAN, GENEVE, NVGRE, MPLS, GTP, programmable parser
VirtualizationSR-IOV (up to 512 VFs), VirtIO net acceleration
Advanced FeaturesFlow mirroring, sampling, header rewrite, hierarchical QoS, stateless TCP offloads
ManagementNC-SI, MCTP, PLDM, NCSI over RBT (OCP variant)
Remote BootiSCSI, PXE, UEFI (x86/ARM)
Selection Guide – ConnectX-6 Lx Family
Ordering Part NumberForm FactorPorts / SpeedCrypto / Secure BootKey Applications
MCX623106AN-CDATOCP 3.0 SFF2x 25GbE / 1x 50GbEYes (IPsec + RoT)Enterprise SDN, secure cloud, NFV
MCX623106AC-CDATPCIe low-profile2x 25GbECrypto & RoTStandard datacenter servers
Why Choose ConnectX-6 Lx MCX623106AN-CDAT
  • Superior TCO: Reduce CPU usage by offloading dataplane, SDN and security functions; lower power per 25G port
  • Future-proof Scalability: PCIe 4.0 readiness and 50GbE ready for next-gen spine-leaf architectures
  • Zero-Trust Security by design: Hardware root-of-trust, secure firmware and inline encryption from endpoint to infrastructure
  • Deployment Simplicity: Zero-Touch RoCE eliminates complex lossless network configuration, reduces operational overhead
  • NVIDIA Leadership: Industry-recognized SmartNIC innovation, supported by broad software ecosystem (DOCA, OFED)
Service & Support – Powered by Starsurge
Hong Kong Starsurge Group Co., Limited provides global logistics, technical pre-sales consulting, and post-sales support for the ConnectX-6 Lx series. Our team offers:
  • Dedicated solution architects for SmartNIC integration
  • Fast sample validation and compatibility testing
  • Multilingual support (English, Mandarin, Cantonese) and global delivery
  • Custom firmware alignment & OEM services on request
  • Warranty & RMA handling direct with NVIDIA collaboration
Frequently Asked Questions (FAQ)
Q1: Is MCX623106AN-CDAT compatible with PCIe Gen3 servers?
A: Yes, the adapter is backward compatible with PCIe Gen3 x8 mechanical and electrical, though bandwidth will be limited to Gen3 speeds.
Q2: Does this model support both SR-IOV and VirtIO offload?
A: Absolutely. ASAP² technology offloads both SR-IOV and VirtIO interfaces, ideal for KVM and containerized workloads.
Q3: What is Zero-Touch RoCE (ZTR)?
A: ZTR allows RoCE to run on standard Ethernet network without PFC/ECN setup, simplifying RDMA deployment while maintaining performance and scalability.
Q4: Can I use this card for IPsec gateway acceleration?
A: Yes, it offers inline IPsec encryption/decryption at line rate, supporting AES-XTS 256/512-bit keys. Offload reduces host CPU load.
Q5: Where can I get the full datasheet / firmware?
A: Contact Starsurge sales or refer to NVIDIA official documentation. We provide direct support for enterprise customers.
Precautions & Ordering Notes
  • Verify server OCP 3.0 slot compatibility (type, mezzanine pinout) before purchase
  • Ensure adequate airflow; cooling requirements follow standard PCIe/OCP NIC specifications
  • For crypto features (IPsec), please confirm software/firmware licensing (if any) with Starsurge
  • Power adapter/cage compatibility for SFP28 optics: use NVIDIA-qualified transceivers for optimal performance
  • Stock availability varies; please request latest lead times via RFQ
About Hong Kong Starsurge Group Co., Limited
Founded in 2008, Starsurge is a technology-driven provider of network hardware, IT services, and system integration solutions. We serve government, healthcare, manufacturing, education, finance, and enterprise sectors globally. Backed by a seasoned sales and technical team, we deliver NVIDIA networking products, IoT solutions, custom software, and multilingual support with a customer-first approach. As an authorized partner, Starsurge ensures reliable quality, responsive service, and tailored infrastructure building – from 25G SmartNICs to full-scale data center deployment.
Product Tags: NVIDIA ConnectX-6 Lx 25G Ethernet SmartNIC   Mellanox 50G network card with warranty   SmartNIC MCX623106AN-CDAT for high-performance networking  
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