• NVIDIA ConnectX-6 Dx 100GbE OCP3.0 adapter card with green PCB
1 1

NVIDIA

NVIDIA MCX623436MN-CDAB | ConnectX-6 Dx Dual-Port 100GbE Network Adapter, OCP 3.0

MCX623436MN-CDAB

Stock Status: Enquire

Request Quote
Sale Sold out
Taxes included. Shipping calculated at checkout.

Description

The NVIDIA ConnectX-6 Dx MCX623436MN-CDAB is an advanced dual-port 100GbE SmartNIC designed for OCP 3.0 server deployments in data centers and high-performance computing environments. This adapter leverages PAM4 and NRZ SerDes technology to deliver up to 100Gb/s per port via QSFP56 interfaces over PCIe 4.0 x16, with comprehensive hardware offloads for virtualization, storage, and RoCE workloads. Built for multi-host and Socket Direct configurations, it features hardware root-of-trust security, host management support, and no crypto acceleration, making it ideal for hyperscale cloud, AI/ML infrastructure, and software-defined data centers.

Features

Dual-port QSFP56 connectivity supporting 1/10/25/40/50/100 Gb/s Ethernet
- PCIe Gen 4.0 x16 host interface with backward compatibility to PCIe Gen 3.0
- OCP Spec 3.0 compliant form factor with thumbscrew (pull tab) retention bracket
- Hardware Root-of-Trust (RoT) with Secure Boot and RSA-based firmware update protection
- Host management support via MCTP over SMBus and MCTP over PCIe (NC-SI compatible)
- Multi-Host and Socket Direct configurations with advanced QoS and isolation
- NVIDIA ASAP2 technology for SR-IOV and VirtIO hardware offloads (up to 8 million rules)
- RoCE v2 (RDMA over Converged Ethernet) with Zero Touch deployment (no PFC/ECN required)
- Configurable congestion control with programmable API for user-defined algorithms
- NVMe-oF target and initiator offloads for efficient storage access
- Hardware offloads: TCP, UDP, IP, VXLAN, NVGRE, Geneve encapsulation/decapsulation
- T10-DIF/PI, CRC32, CRC64 signature offloads for data integrity
- PTP (IEEE 1588v2) and NTP time synchronization for precise timestamping
- PeerDirect technology for GPU-direct RDMA (reduces PCIe data copies)
- Advanced traffic shaping and classification-based QoS
- Sub 0.8 microsecond latency and up to 215 million packets per second message rate
- Selective repeat and programmable congestion control interface
- Support for Ethernet protocols: 100GBASE-CR4/KR4/SR4, 50GBASE-R2/R4, 40GBASE-CR4/KR4/SR4/LR4, 25GBASE-R, 10GBASE-CR/KR/SR, 1000BASE-KX
- Non-crypto SKU (no IPsec/TLS/AES-XTS hardware offload)

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.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

Form Factor: OCP 3.0 (Open Compute Project Spec 3.0)
- Interface: Dual-port QSFP56 Ethernet (copper and optical)
- Supported Speeds: 1/10/25/40/50/100 Gb/s Ethernet
- Host Interface: PCIe Gen 4.0 x16 (backward compatible with PCIe Gen 3.0)
- Dimensions: 2.99 in x 4.52 in (76.00mm x 115.00mm)
- Retention Mechanism: Thumbscrew (Pull Tab) Bracket
- Technology: 50Gb/s PAM4 and 25/10 Gb/s NRZ SerDes
- Configuration: Multi-Host or Socket Direct support
- Security: Hardware Root-of-Trust, Secure Boot, Secure Firmware Update (RSA)
- Host Management: Supported via MCTP over SMBus or PCIe
- Crypto: No crypto acceleration (non-crypto SKU)
- Message Rate: Up to 215 million packets per second
- Latency: Sub 0.8 microseconds
- Memory: 32Kbit EEPROM, 256Mbit SPI Quad Flash
- Device ID: PF 4125, VF 4126
- Regulatory: RoHS compliant, CB/cTUVus/CE, FCC/VCCI/ICES/RCM
- Operating Temperature: 0°C to 55°C
- Storage Temperature: -40°C to 70°C
- Humidity: 10% to 85% RH (operational)

FAQs

Q: What is the difference between the MCX623436MN-CDAB and crypto-enabled variants?
A: The MCX623436MN-CDAB is a non-crypto SKU that does not support IPsec, TLS, or AES-XTS encryption/decryption hardware offload. For applications requiring inline encryption and decryption acceleration, a crypto-enabled variant is required.

Q: Is this adapter compatible with standard PCIe servers or only OCP 3.0 chassis?
A: This adapter is designed specifically for OCP 3.0 server chassis and uses the OCP 3.0 edge connector with thumbscrew retention. It is not compatible with standard PCIe slots. For traditional server installations, consider standard PCIe form factor ConnectX-6 Dx adapters.

Q: What is Multi-Host or Socket Direct mode on this adapter?
A: Multi-Host and Socket Direct configurations allow the adapter to be shared across multiple physical hosts or CPUs within a server, with advanced QoS features ensuring complete isolation and fairness. This is beneficial in disaggregated server architectures and multi-socket systems.

Q: Does this adapter support RDMA and RoCE for low-latency storage and HPC workloads?
A: Yes, the ConnectX-6 Dx supports RDMA over Converged Ethernet (RoCE v2) with hardware offloads, delivering sub-microsecond latency and efficient CPU utilization. It also supports Zero Touch RoCE, eliminating the need for PFC or ECN configuration on the network.

Q: What virtualization features are supported on the MCX623436MN-CDAB?
A: The adapter supports SR-IOV and VirtIO hardware offloads via NVIDIA ASAP2 technology, enabling up to 8 million offload rules for vSwitch and vRouter acceleration. It provides dedicated resources and guaranteed isolation for virtual machines.

Recently Viewed

  • Request a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us