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NVIDIA ConnectX-6 Lx MCX631102AN-ADAT 25G Ethernet SmartNIC
Product Details:
| Brand Name: | Mellanox |
| Model Number: | MCX631102AN-ADAT |
| Document: | connectx-6-infiniband.pdf |
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 |
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Detail Information |
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| 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 |
| Highlight: | NVIDIA ConnectX-6 Lx 25G Ethernet SmartNIC,Nvidia Network Card with 25G performance,MCX631102AN-ADAT SmartNIC with Ethernet connectivity |
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Product Description
NVIDIA ConnectX-6 Lx MCX631102AN-ADAT 25G Ethernet SmartNIC
Product Overview
The NVIDIA ConnectX‑6 Lx MCX631102AN‑ADAT is a high‑performance single‑port 25GbE Ethernet SmartNIC designed for modern enterprise and cloud data centers. It delivers line‑rate 75Mpps message rate, advanced RoCE, and SDN acceleration with ASAP2 - all in a low‑profile PCIe form factor.
Key Features
- Port configuration: 1× 10/25GbE SFP28
- Total bandwidth: Up to 25Gb/s
- Message rate: 75Mpps line‑speed
- Host interface: PCIe Gen4 x8 (backward compatible to Gen3 x8)
- Form factor: Low‑profile PCIe
- RoCE: Zero‑Touch RoCE (ZTR) with PFC/ECN auto‑configuration
- SDN acceleration: ASAP2 for VXLAN, GENEVE, NVGRE
- Virtualization: SR‑IOV, VirtIO, connection tracking (L4 firewall)
- Management: NC‑SI, MCTP, PLDM, secure firmware update
- Remote boot: iSCSI, PXE, UEFI (x86/Arm)
Technology & Design
The ConnectX‑6 Lx ASIC integrates advanced acceleration engines that offload the host CPU for networking and storage workloads. ASAP2 technology enables full SDN data‑plane offload, supporting overlay encapsulations (VXLAN, GENEVE, NVGRE). The adapter features a programmable flexible parser, flow mirroring, sampling, statistics, and hierarchical QoS. Hardware root‑of‑trust with secure boot and firmware updates using RSA cryptography protects the supply chain and guarantees firmware authenticity.
Typical Deployments
- Enterprise data centers: 25GbE server connectivity for virtualization and cloud workloads
- AI/ML clusters: RoCE‑based low‑latency storage and compute interconnects
- Software‑defined storage: High‑performance NVMe‑over‑Fabrics with RoCE
- Cloud service providers: Cost‑effective 25G connectivity for public and private clouds
- Edge computing: Single‑port 25G for space‑constrained edge servers
Specifications
| Parameter | Value |
|---|---|
| Product Type | Ethernet SmartNIC |
| Chipset | NVIDIA ConnectX‑6 Lx |
| Port Configuration | 1× 10/25GbE SFP28 |
| Total Bandwidth | Up to 25Gb/s |
| Message Rate | 75 Mpps (line‑rate) |
| Host Interface | PCIe Gen4 x8 (backward compatible to Gen3 x8) |
| Form Factor | Low‑profile PCIe |
| Connectivity | SFP28 (single‑port) |
| RoCE | Zero‑Touch RoCE (ZTR) with PFC/ECN auto‑config |
| SDN Offload | ASAP2: VXLAN, GENEVE, NVGRE |
| Virtualization | SR‑IOV, VirtIO, connection tracking (L4 firewall) |
| Security | Hardware root‑of‑trust, secure firmware update |
| Management | NC‑SI, MCTP (SMBus/PCIe), PLDM |
| Remote Boot | iSCSI, PXE, UEFI (x86/Arm) |
| Model Number | MCX631102AN-ADAT |
This SKU does not include IPsec crypto acceleration. For crypto variants, please contact our sales team.
Selection Guide
| Feature | MCX631102AN-ADAT | Other Variants |
|---|---|---|
| Ports | 1× SFP28 (25GbE) | 2× SFP28 (25G) / 1× QSFP28 (50G) |
| PCIe | Gen4 x8 | Gen4 x8 |
| IPsec Crypto | No | Yes (crypto variants available) |
| Form Factor | Low‑profile PCIe | OCP 3.0 SFF also available |
| RoCE | Zero‑Touch RoCE | Zero‑Touch RoCE |
| Management | NC‑SI, MCTP, PLDM | NC‑SI, MCTP, PLDM |
For dual‑port, 50G, OCP 3.0, or crypto variants, please contact our sales team for specific ordering part numbers.
Advantages
- CPU offload: ASAP2 acceleration frees up CPU cores for application workloads
- Simplified RoCE: Zero‑Touch RoCE eliminates complex PFC/ECN configurations
- Cost‑effective: Best TCO for 25GbE enterprise deployments
- Future‑ready: PCIe Gen4 x8 delivers 16GB/s bandwidth for emerging workloads
- Virtualization optimized: SR‑IOV and VirtIO acceleration enable efficient multi‑tenant clouds
- Secure boot: Hardware root‑of‑trust protects against firmware tampering
Frequently Asked Questions
Q: What is the maximum bandwidth of this adapter?
A: Up to 25Gb/s (single‑port 25GbE).
Q: Does this card support RoCE?
A: Yes, it features Zero‑Touch RoCE (ZTR) with auto‑configuration for PFC and ECN, simplifying RDMA deployment.
Q: What is ASAP2?
A: ASAP2 (Accelerated Switch and Packet Processing) offloads SDN data‑plane processing to the SmartNIC, accelerating VXLAN, GENEVE, and NVGRE encapsulations.
Q: Is this card compatible with PCIe Gen3 servers?
A: Yes, it is backward compatible with PCIe Gen3 x8 slots.
Q: Does this SKU include IPsec crypto acceleration?
A: No, the MCX631102AN‑ADAT is a non‑crypto variant. Crypto‑enabled SKUs are available - please contact our sales team.
Q: What form factor is this card?
A: Standard low‑profile PCIe. OCP 3.0 SFF variants are also available.
Handling Precautions
- Observe standard ESD precautions during installation and handling
- Ensure the system is powered off before inserting or removing the adapter
- Use appropriate anti‑static wrist straps and grounded workstations
- Do not touch the edge connector or exposed components
- Follow system vendor guidelines for PCIe slot power and cooling requirements
About Hong Kong Starsurge Group
Hong Kong Starsurge Group Co., Limited is a technology‑driven provider of network hardware, IT services, and system integration solutions. Since 2008, we have served customers worldwide with networking equipment including switches, NICs, wireless access points, controllers, cables, and optical modules. Our experienced sales and technical teams support diverse industries such as government, healthcare, manufacturing, education, finance, and enterprise. We deliver customized solutions, global logistics, and multilingual support - all built on a customer‑first commitment to reliability, performance, and scalability.
Compatibility Matrix
| Category | Supported Platforms |
|---|---|
| Operating Systems | Linux (RHEL, Ubuntu, SLES), Windows Server, VMware ESXi |
| Switches | NVIDIA Spectrum SN2000/SN3000/SN4000 series, third‑party 25G switches |
| Servers | x86 and Arm‑based servers with PCIe Gen3/Gen4 slots |
| Management | NC‑SI, MCTP, PLDM |
Buyer Checklist
- Confirm your server has an available PCIe Gen3 or Gen4 x8 slot
- Verify the required port count (single 25G SFP28)
- Check if your OS and driver stack are supported
- Determine if IPsec crypto acceleration is required (this SKU does NOT include crypto)
- Evaluate power and cooling capacity of your server chassis
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