Mellanox MCX623102AN-ADAT
Mellanox ConnectX-6 Dx EN Adapter Card User Manual
Model: MCX623102AN-ADAT
Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of the Mellanox ConnectX-6 Dx EN Adapter Card (Model: MCX623102AN-ADAT). This high-performance network interface card is designed to accelerate mission-critical data-center applications.

Figure 1: Mellanox ConnectX-6 Dx EN Adapter Card (MCX623102AN-ADAT). This image shows the adapter card with its two SFP28 ports, PCIe connector, and the NVIDIA chip.
Product Overview
The Mellanox ConnectX-6 Dx SmartNIC is a state-of-the-art network interface card offering advanced features for data centers. It supports up to 200 Gb/s Ethernet connectivity and incorporates hardware acceleration for various network functions.
Key Features:
- Up to 200 Gb/s bandwidth
- Message rate of up to 215 Mpps
- Sub 0.8 usec latency
- Flexible programmable pipeline for new network flows
- Mellanox Multi-Host with advanced QoS
- ASAP - Accelerated Switching and Packet Processing for virtual switches/routers
- Overlay tunneling technologies
- IPsec and TLS in-line crypto acceleration
- Block crypto acceleration for data-at-rest
- Hardware Root-of-Trust and secure firmware update
Package Contents
Verify that all items are present and undamaged. If any items are missing or damaged, contact your vendor.
- 1 x MCX623102AN-ADAT ConnectX-6 Dx EN Adapter Card 25GbE Crypto Disabled
- 1 x Short Bracket
Setup and Installation
System Requirements:
- Available PCIe slot (e.g., PCIe Gen4 x16 or compatible)
- Compatible operating system (e.g., Linux, Windows Server)
- Sufficient power supply
- Appropriate network cables (e.g., SFP28 DAC or optical transceivers)
Installation Steps:
- Power Off System: Ensure the host system is completely powered off and disconnected from the power source.
- Open Chassis: Open the computer chassis to access the PCIe slots.
- Select PCIe Slot: Identify an available PCIe slot that matches the card's interface.
- Insert Adapter Card: Carefully align the adapter card with the PCIe slot and press firmly until it is securely seated. Ensure the bracket is properly aligned with the chassis opening.
- Secure Card: Secure the adapter card with the retaining mechanism or screw provided by your chassis.
- Close Chassis: Close the computer chassis and reconnect the power source.
- Power On System: Power on the system and proceed with driver installation.
Driver Installation:
After physical installation, install the appropriate drivers for your operating system. Drivers can typically be downloaded from the Mellanox (NVIDIA Networking) official website. Follow the instructions provided with the driver package for a successful installation.
Operating Instructions
Connecting Network Cables:
Connect compatible SFP28 Direct Attach Copper (DAC) cables or optical transceivers with fiber optic cables to the ports on the adapter card. Ensure the cables are securely latched.
Network Configuration:
Once drivers are installed and the card is recognized by the operating system, configure network settings (IP address, subnet mask, gateway, DNS) through your operating system's network interface configuration tools. Refer to your operating system's documentation for specific network configuration steps.
Verifying Operation:
To verify proper operation, check the link status indicators on the adapter card. Use network diagnostic tools (e.g., ping, ipconfig/ifconfig) to confirm connectivity and data transfer.
Maintenance
The Mellanox ConnectX-6 Dx EN Adapter Card is designed for reliable operation with minimal maintenance. However, periodic checks are recommended:
- Dust Removal: Periodically inspect the card and surrounding area for dust accumulation. Use compressed air to gently remove dust from the heatsinks and components to ensure proper airflow and cooling.
- Firmware Updates: Check the Mellanox (NVIDIA Networking) website for firmware updates. Applying the latest firmware can improve performance, stability, and security. Follow the provided instructions carefully when performing firmware updates.
- Cable Integrity: Ensure all connected network cables are secure and undamaged.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Card not detected by OS |
|
|
| No link light / No network connectivity |
|
|
| Poor network performance |
|
|
Specifications
| Feature | Detail |
|---|---|
| Model Number | MCX623102AN-ADAT |
| Brand | Mellanox (NVIDIA Networking) |
| Series | ConnectX-6 Dx EN |
| Interface | PCIe (Specific generation not explicitly stated, but ConnectX-6 typically uses PCIe Gen4) |
| Data Link Protocol | Ethernet |
| Ports | 2 x 25GbE (SFP28) or 1 x 200GbE (via aggregation) |
| Bandwidth | Up to 200 Gb/s |
| Message Rate | Up to 215 Mpps |
| Latency | Sub 0.8 usec |
| Dimensions (LxWxH) | 7.5 x 6.25 x 1.05 inches |
| Item Weight | 0.35 ounces |
| Special Features | Crypto Disabled, IPsec/TLS in-line crypto acceleration, Block crypto acceleration, Hardware Root-of-Trust, Secure firmware update, ASAP, Overlay tunneling |
Warranty and Support
For warranty information and technical support, please refer to the official Mellanox (NVIDIA Networking) website or contact your authorized reseller. Keep your proof of purchase for warranty claims.
Online Resources:
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.







