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Dell EMC PowerEdge MX7116n Fabric Expander Module
Low latency 25 Gigabit Ethernet fabric expansion for the PowerEdge MX platform

Dell EMC PowerEdge MX7116n Fabric Expander Module

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Dell EMC PowerEdge MX7116n Fabric Expander Module
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The Dell EMC Networking MX7116n Fabric Expander Module is a key component in the MX Scalable Fabric Architecture. This module transparently extends the networking capabilities of the MX9116n Fabric Switching Engine to multiple PowerEdge™ MX7000 chassis, providing high performance networking at a low TCO.

Maximum scalability

The MX7116n extends the capabilities of the MX9116n Fabric Switching Engine to a total of ten MX7000 chassis and 80 PowerEdge MX compute sleds. In addition to 16 internal 25GbE ports, the MX7116n provides two QSFP28-Double Density uplink ports. Each QSFP28-DD port provides capacity for eight 25GbE connections from PowerEdge MX compute sleds for a total of 200GbE of bandwidth per QSFP28-DD cable, and 400GbE bandwidth per MX7116n.

Performance and latency

The non-blocking switching architecture in the MX9116n Fabric Switching Engine provides line-rate 25GbE L2 and L3 forwarding capacity to all connected servers. The MX7116n extends that capability to additional MX7000 chassis, adding less than 75ns of latency for a total of less than 600ns latency between any two compute sleds in a Scalable Fabric.

The design of the MX Scalable Fabric Architecture also allows for zero oversubscription between any two compute sleds in the fabric.

Zero touch management

The MX7116n does not run an operating system or have firmware that requires frequent updating to keep “in sync” with the Fabric Switching Engine. It is transparently managed by the MX7000 infrastructure and does not require user configuration.

Technical Specifications:

Dell EMC PowerEdge MX7116n Specifications
  • Transceiver, 2x100/2x80GbE Multi-rate, 2SR4 QSFP28-DD
  • Transceiver, 2x100GbE, 2SR4 QSFP28-DD
  • Transceiver, 2x40GbE, 2SR4 QSFP28-DD
  • 2x 100GbE, QSFP28-DD to QSFP28-DD, active optical, passive DAC
  • 2x 100GbE, QSFP28-DD to 2xQSFP28, active optical, passive DAC
  • 2x 100GbE, QSFP28-DD to 8xSFP28 (8x10/25GbE), active optical, passive DAC
  • 2x 100GbE, MPO12-DD to MPO12-DD optical
  • 2x 100GbE, MPO12DD to 2xMPO12 optical breakout
  • 2x 100GbE, MPO12DD to 8xLC optical breakout
  • 2x 40GbE, QSFP28-DD to 2xQSFP+, active optical, passive DAC
  • 2x 40GbE, QSFP28-DD to 8xSFP+ (8x10/10GbE), active optical, passive DAC


  • 25GbE Fabric Expander in PowerEdge MX Fabric A/B I/O sled form factor
  • Indicators:
    • Power/Health LED
    • ID LED
    • Supported Optic LED
    • Compute sled link/activity LEDs
  • Size: 1.18”h x 17.11”w x 10.94”d
  • Weight: 6.83lbs (3.1kg)
  • Max. power consumption: 21.9 Watts
  • Typ. power consumption: 16.0 Watts
  • Max. operating specifications:
    • Standard Operating Temperature 10°C to 35°C (50°F to 95°F)
    • Operating Relative Humidity 5% to 85%, noncondensing
  • Max. non-operating specifications:
    • Storage temperature: -40°C to 65°C (-40°F to 149°F)
    • Storage humidity: 5 to 95% (RH), noncondensing
  • Expanded Operating Temperature, Continuous Operation: 5°C to 40°C at 5% to 85% RH with 29°C dew point
  • Note: Outside the standard operating temperature, the system can operate continuously in temperatures as low as 5°C and as high as 40C. For temperature between 35°C to 40°C, de-rate maximum allowable temperature by 1°C per 175m above 950m (1°F per 319 ft)


  • Redundant Power and Cooling provided by Dell EMC PowerEdge MX7000 Chassis


  • Latency: Sub 75ns

Regulatory compliance


  • UL/CSA 60950-1, Second Edition
  • EN 60950-1, Second Edition
  • IEC 60950-1, Second Edition Including all National Deviations and Group Differences
  • EN 60825-1 Safety of Laser Products Part 1: Equipment Classification Requirements and User’s Guide
  • EN 60825-2 Safety of Laser Products Part 2: Safety of Optical Fiber Communication Systems FDA Regulation 21 CFR 1040.10 and 1040.11

Emissions & Immunity

  • Australia/New Zealand: AS/NZS CISPR 32:2015, Class A
  • Canada: ICES-3/NMB-3, Class A
  • Europe: EN 55024:2010 (CISPR 24:2010), Class A
  • Japan: VCCI V-3/2010.04 Class A
  • USA: FCC CFR 47 Part 15, Subpart B:2011, Class A
  • EN 300 386 V1.6.1 EMC for Network Equipment
  • EN 55024:2010
  • EN 61000-3-2: Harmonic Current Emissions
  • EN 61000-3-3: Voltage Fluctuations and Flicker
  • EN 61000-4-2: ESD
  • EN 61000-4-3: Radiated Immunity
  • EN 61000-4-4: EFT
  • EN 61000-4-5: Surge
  • EN 61000-4-6: Low Frequency Conducted Immunity


  • EN 50581:2012 All MX9116n components are EU RoHS compliant

Support & Services:

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Proactive Management and Monitoring (no charge)


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Support Services


Gain the freedom to focus on your business transformation with the support expertise and insights Dell is known for across the globe. Choose the right support based on the criticality of specific systems with available automated predictive analysis, collaborative third-party assistance and a Technology Service Manager.

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Training & Certification

Training & Certification

Education Services offers an expansive suite of training services with multiple delivery methods, including instructor-led, self-paced online and virtual instructor-led training. With comprehensive and flexible training programs, we make it easy to ensure your staff has the skills they need to successfully manage and utilize your new technology to its full potential.


Dell EMC PowerEdge MX7116n Datasheet (.PDF)

Pricing Notes:

  • Pricing and product availability subject to change without notice.
Dell Storage Products
Dell PowerEdge Modular Infrastructure
Dell EMC PowerEdge MX7116n Fabric Expander Module
Get a Quote!