Micas Networks M2-W6940-128QC-FA 128x400G QSFP112 Ports Data Center Switch

MFR# M2-W6940-128QC-FA
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Brand Name: Micas Networks
Product Type: Open Switches
Main Port Count: 128 Ports
Main Port Type: QSFP112
Main Port Speed: 400GbE
Product Brief: M2-W6940-128QC-FA

Micas Networks M2-W6940-128QC-FA 128x400G QSFP112 Ports Data Center Switch, 4RU, 128x400GbE QSFP112 ports, Broadcom Tomahawk 5 BCM78900 ASIC, Intel Xeon D-1734NT Processor, 4 AC PSUs with 2+2 redundancy, Front-to-rear airflow, Supported NOS SONiC

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Overview

The Micas Networks M2-W6940-128QC-FA is a 4RU 400G data center switch based on the Broadcom Tomahawk 5 ASIC with 128 QSFP112 ports for high-density open Ethernet fabrics. This configuration includes four AC power supplies with 2+2 redundancy and front-to-rear airflow.

Use Cases

  • Data center Ethernet fabrics
  • Cloud and AI infrastructure

Ports & Switching

  • 128x400GbE QSFP112 ports

Hardware & Platform

  • Broadcom Tomahawk 5 BCM78900 silicon
  • Intel Xeon D-1734NT
  • 16GB DDR4, expandable to 32GB system memory
  • 240GB SSD
  • 4RU rack form factor
  • 17.40 x 31.50 x 6.83 in (W x D x H)
  • 94.03 lbs (with all modules)

Compatible Software (NOS)

  • Open Network Install Environment (ONIE)
  • Compatible with SONiC
  • Software licensing and the supported feature set depend on the selected NOS and configuration.

Cooling & Power

  • 4 AC PSUs with 2+2 redundancy
  • 5 hot-swappable fans with 4+1 redundancy
  • Front-to-rear airflow

Efficiency & Reliability

  • Layer 2 and Layer 3 forwarding
  • Community and enterprise SONiC options
  • Redundant, serviceable power and cooling
  • RoCEv2 data forwarding

Ordering Information

  • M2-W6940-128QC-FA with 4 AC PSUs with 2+2 redundancy and front-to-rear airflow
Specifications
Brand Name

Micas Networks
Product Type

Open Switches
Main Port Count

128 Ports
Main Port Type

QSFP112
Main Port Speed

400GbE
ASIC

Broadcom Tomahawk 5 BCM78900
Processor

Intel Xeon D-1734NT
Flash Memory

240GB SSD
Layer Switching

L2, L3
Power Supply

4 PSU
Supported NOS

SONiC
Software

Open Network Install Environment (ONIE)
Dimensions

17.40 x 31.50 x 6.83 in
Weight

94.03 lbs
Frequently Asked Questions

Question:

Which network operating systems can I run on the M2-W6940-128QC-FA?
Hardware Nation
12-Oct-2026

Answer:

Community SONiC, Enterprise SONiC Distribution by Micas and Enterprise SONiC Distribution by Broadcom. ONIE is preloaded for installing a compatible image. Commercial software licensing and support depend on the selected package. Other NOS options may be available as the ecosystem evolves.

Question:

What ports does the M2-W6940-128QC have?
Hardware Nation
12-Oct-2026

Answer:

128x400G QSFP112 ports in a 4RU chassis.

Question:

What switch chip does it use?
Hardware Nation
12-Oct-2026

Answer:

Broadcom Tomahawk 5, BCM78900.

Question:

What is it designed for?
Hardware Nation
12-Oct-2026

Answer:

AI/ML, high-performance computing and distributed storage networks that need a large number of 400G connections.

Question:

Does it have redundant power and cooling?
Hardware Nation
12-Oct-2026

Answer:

Four hot-swappable power supplies provide 2+2 redundancy, and five hot-swappable fan modules provide 4+1 redundancy.

Question:

What power and airflow does this version use?
Hardware Nation
12-Oct-2026

Answer:

M2-W6940-128QC-FA uses AC power and front-to-rear airflow.

Question:

What CPU, memory and storage does it have?
Hardware Nation
12-Oct-2026

Answer:

An Intel Xeon D1734NT CPU, 16 GB DDR4 memory with support for up to 32 GB, and 240 GB storage.

Question:

How is it different from the M2-W6940-64OC?
Hardware Nation
12-Oct-2026

Answer:

The M2-W6940-64OC has 64x800G OSFP ports in 2RU; the M2-W6940-128QC has 128x400G QSFP112 ports in 4RU. Both use Tomahawk 5 and provide 102.4 Tbps full-duplex capacity.
Warranty
All new products are covered by the manufacturer warranty. To claim warranty, you may contact the manufacturer directly or contact your account executive at Hardware Nation. We can help facilitate the warranty processes between the customer and manufacturer.
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