 
|
NVIDIA ConnectX-6 Lx MCX623436AN-CDAB 25/50GbE Ethernet SmartNIC – OCP 3.0 SFF, PCIe Gen4 x8, IPsec Crypto, Zero-Touch RoCE
Product Details:
| Brand Name: | Mellanox |
| Model Number: | MCX623436AN-CDAB |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1pcs |
|---|---|
| Price: | Negotiate |
| Packaging Details: | outer box |
| Delivery Time: | Based on inventory |
| Payment Terms: | T/T |
| Supply Ability: | Supply by project/batch |
|
Detail Information |
|||
| Model NO.: | MCX623436AN-CDAB | Ports: | Dual |
|---|---|---|---|
| Technology: | Eth | Interface Type: | Osfp56 |
| Specification: | 16.7cm X 6.9cm | Origin: | India / Israel / China |
| Transmission Rate: | 100gbe | Host Interface: | Gen4 X16 |
| Highlight: | NVIDIA ConnectX-6 Lx 25/50GbE SmartNIC,OCP 3.0 SFF Ethernet Network Card,PCIe Gen4 x8 IPsec Crypto NIC |
||
Product Description
NVIDIA ConnectX-6 Lx MCX623436AN-CDAB 25/50GbE Ethernet SmartNIC
OCP 3.0 SFF, PCIe Gen4 x8, IPsec Crypto, Zero-Touch RoCE
Key Specifications: Dual-port 25GbE or single-port 50GbE • PCIe Gen4 x8 • IPsec inline crypto • Zero-Touch RoCE • OCP 3.0 SFF form factor
Product Overview
The NVIDIA ConnectX-6 Lx MCX623436AN-CDAB is an advanced Ethernet SmartNIC engineered for modern enterprise and cloud data centers. This adapter delivers scalable 25/50GbE connectivity with PCIe Gen4 x8 host interface, providing exceptional performance, advanced security, and accelerated networking at an optimized total cost of ownership.
This OCP 3.0 Small Form Factor adapter supports up to two ports of 25GbE or a single port of 50GbE, with total bandwidth up to 50 Gb/s. Purpose-built for 25GbE deployments, it features industry-leading RDMA over Converged Ethernet with Zero-Touch RoCE for simplified, resilient, and scalable deployments without requiring special network configurations.
Key Features
- Up to 50 Gb/s total bandwidth (2x 25GbE or 1x 50GbE)
- Line speed message rate of 75 Mpps
- PCIe Gen 4.0 x8 host interface (backward compatible with Gen3)
- OCP 3.0 Small Form Factor for high-density servers
- Zero-Touch RoCE - no PFC or ECN configuration required
- ASAP² SDN acceleration for overlay encap/decap, VXLAN, GENEVE, NVGRE, MPLS, GTP
- Inline hardware IPsec encryption and decryption (AES-XTS 256/512-bit)
- Hardware root-of-trust with secure boot and secure firmware update
- SR-IOV and VirtIO acceleration for virtualization and containerized workloads
- Connection tracking (L4 firewall) hardware offload
Technology & Architecture
The ConnectX-6 Lx architecture integrates advanced acceleration engines that offload critical networking functions from the host CPU, freeing resources for application workloads:
ASAP² (Accelerated Switch and Packet Processing): Offloads the SDN data plane to the SmartNIC, delivering line-rate performance for overlay networks while reducing CPU utilization.
Zero-Touch RoCE (ZTR): Eliminates the need for Priority Flow Control or Explicit Congestion Notification configuration, enabling simple, resilient RDMA deployments at scale.
Inline IPsec Crypto: Hardware-accelerated encryption and decryption for secure data-in-transit with negligible performance impact.
Hardware Root-of-Trust (RoT): Secure boot using RSA cryptography and device-unique key cloning protection ensures firmware authenticity and supply chain security.
Technical Specifications
| Part Number | MCX623436AN-CDAB |
| Product Family | NVIDIA ConnectX-6 Lx |
| Ports | 2x 25GbE or 1x 50GbE (SFP28 / QSFP28) |
| Total Bandwidth | Up to 50 Gb/s |
| Message Rate | 75 Mpps (line rate) |
| Host Interface | PCIe Gen 4.0 x8 (compatible with Gen3, Gen2, Gen1) |
| Form Factor | OCP 3.0 Small Form Factor (SFF) |
| Crypto Acceleration | Inline IPsec (AES-XTS 256/512-bit) encryption/decryption |
| Security | Hardware root-of-trust, secure boot, secure firmware update |
| RoCE | Zero-Touch RoCE, RoCE over IPsec |
| SDN Offload | ASAP²: VXLAN, GENEVE, NVGRE, MPLS, GTP, VXLAN-GPE |
| Virtualization | SR-IOV, VirtIO acceleration |
| Management | NC-SI, MCTP (SMBus/PCIe), PLDM |
| Remote Boot | PXE, iSCSI, UEFI (x86 and Arm) |
| Warranty | 1-year limited hardware warranty |
Typical Deployments
- Enterprise Data Centers: High-performance 25GbE server connectivity with low latency and CPU offload
- Cloud and NFV Infrastructure: SDN acceleration for virtualized and containerized environments
- AI and Machine Learning Clusters: Zero-Touch RoCE provides low-latency RDMA for distributed training
- Security-Sensitive Environments: IPsec inline encryption with hardware root-of-trust
- Telecommunications (CSP): NFV acceleration with MPLS, GTP, and connection tracking
Why Choose ConnectX-6 Lx MCX623436AN-CDAB?
- Superior Performance: 75 Mpps line-rate message processing with PCIe Gen4 x8 bandwidth
- Simplified RoCE: Zero-Touch RoCE eliminates complex PFC/ECN configuration
- Built-in Security: Inline IPsec, hardware root-of-trust, secure boot, and secure firmware updates
- SDN Ready: ASAP² offloads overlay tunneling and SDN data plane to the SmartNIC
- Optimized for Virtualization: SR-IOV and VirtIO acceleration for efficient VM and container networking
- OCP 3.0 SFF: Open Compute Project standard form factor for high-density, scalable deployments
Frequently Asked Questions
What is the port configuration for MCX623436AN-CDAB?
This adapter supports two ports of 25GbE (SFP28) or a single port of 50GbE (QSFP28). Please verify your specific configuration requirements before ordering.
What is Zero-Touch RoCE (ZTR)?
ZTR is a feature that allows RoCE to operate seamlessly on existing Ethernet networks without requiring Priority Flow Control or Explicit Congestion Notification configuration, simplifying RDMA deployments.
Is this card compatible with PCIe Gen3 servers?
Yes, the adapter is PCIe Gen4 x8 and is fully backward compatible with PCIe Gen3, Gen2, and Gen1 slots.
What security features does this SmartNIC provide?
The MCX623436AN-CDAB includes inline IPsec encryption/decryption, hardware root-of-trust, secure boot, and secure firmware update with RSA cryptography and device-unique key cloning protection.
Important Note: This is an OCP 3.0 Small Form Factor adapter. Ensure your server chassis has a compatible OCP 3.0 SFF slot before ordering.
Buyer Checklist
- Confirm server has OCP 3.0 SFF slot
- Verify required port speed (2x 25GbE or 1x 50GbE)
- Check PCIe slot availability (Gen4 x8 recommended)
- Confirm OS/driver support for ConnectX-6 Lx
- Evaluate security requirements (IPsec, RoT)
- Consider RoCE adoption for storage/AI workloads
- Ensure appropriate SFP28/QSFP28 optics or DAC cables
Want to Know more details about this product
