Mellanox M2401G InfiniBand Switch Blade

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Performance and efficiency in a cost-effective solution

High bandwidth, low latency and low power demands for enterprise data centers and high-performance-computing (HPC) environments.

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Mellanox M2401G


World-Class Price and Performance

The Mellanox M2401G 20-Gb/s InfiniBand Switch Blade for Dell PowerEdge™ M1000e-series Blade Enclosures provides a high-bandwidth, low-latency, low-power fabric for enterprise data center and HPC environments.

Based on the third-generation InfiniScale III InfiniBand switch device, the platform delivers an ideal balance between cost and performance. When used in conjunction with ConnectX® InfiniBand dual port I/O cards, clustered databases, parallelized applications and transactional services, applications will achieve significant performance improvements resulting in reduced completion time and lower cost per operation.

The 24-port switch blade supports up to 16 server blades while providing eight ports for connecting to a larger InfiniBand fabric. The non-blocking architecture ensures that each port provides the full 20 Gb/s of bidirectional bandwidth while the advanced scheduling engine supports quality of service for up to nine traffic classes.

High Availability

The M2401G delivers director-class availability required for mission-critical applications environments. When fully populated, the PowerEdge M1000e chassis can support up to four M2401G Switch Blades for maximum server throughput and redundancy. The switch blade is hot-swappable, enabling expansion without server interruption.

Easy Management

The M2401G is easily managed through any InfiniBand Trade Association (IBTA)-compliant subnet manager. Mellanox recommends installing and running Mellanox OpenFabrics software stack on each server blade. Any server can then run the subnet manager along with the switch management tools.

Port configuration and data paths can be set up automatically or customized to meet the needs of the application. Firmware can be updated in-band for simple network maintenance.

Port Attributes

  • 24 auto-negotiating 10Gb or 20Gb/s InfiniBand ports

    16 internal server ports
    Up-to 8 external microGiGaCN connector ports for use with uplink cables
        Passive copper cable 
        Optical media adapter and active cable support  

    Port and system status LED indicators

    Per port status LEDs: Link, Activity
    System status LEDs: System status, power

    Hot-swappable, enabling expansion without server interruption
    Support for up-to four switch blade modules per M1000e blade chassis


  • Non-blocking architecture ensures simultaneous wire-speed (any port to any port) with bi-directional bandwidth
    Switch Fabric Capacity 960 Gb/s
    Up to 16K Multicase Addresses per Subnet
    Up-to 48K Unicast Addresses Max per Subnet

Quality of Service

  • Advanced scheduling engine supports quality of service for up to 9 traffic classes

    9 virtual lanes
    8 data
    1 management

Other Switching

  • IBTA Specification 1.2 compliant
    Integrated subnet manager agent
    Linear forwarding table
    256 to 4Kbyte MTU
    48K entry linear forwarding data base
    Hot pluggable


  • Diagnostic and debug tools
    Unmanaged switch supports Open SM or third-party subnet managers

    NOTE: Mellanox OpenFabrics Enterprise Distribution (OFED) software stack contains a subnet manager along with switch management tools


  • 272.50 x 29.45 x 255.20 mm (H x W x D)
    10.73 x 1.16 x 10.04 inches
    Approximate weight: 1.5 Kg fully configured

Standards Supported

    EU: IEC60950

    USA: FCC, Class A
    Canada: ICES, Class A
    EU: EN55022, Class A
    EU: EN55024, Class A
    EU: EN61000-3-2, Class A
    EU: EN61000-3-3, Class A
    Japan: VCCI, Class A
    Korea: RRL (MIC), Class A

    EU: IEC 60068-2-64: Random Vibration
    EU: IEC 60068-2-29: Shocks, Type I / II
    EU: IEC 60068-2-32: Fall Test

Environmental Operating Conditions

  • Operating Temperature: 0º C to 50º C
    Operating Relative Humidity: 10% to 90% non-condensing

    Dissipated power: 36.8W
    Power through connector: 13.2W (1.65 W per port)
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