Skip to main content
MMC Connectors and Assemblies

Optical Solutions

MMC Cable Assemblies and Adapters

Helping data centers optimize space and density to meet AI-driven demands for increased capacity and performance, the Molex MMC system leverages a very small form factor (VSFF) design to achieve higher density within the same footprint. MMC Cable Assemblies and Adapters are available with 16 or 24 fibers, providing higher cabling port density and low-loss performance in a compact design to support high-bandwidth applications.

Find Parts Contact Us
Insertion Loss (max.) Return Loss (max.) Cable Outside Diameter Cable Length
0.35 dB -55 dB 2.00 to 2.50mm 1.0 to 20.0m (standard), longer cables up to 100.0m available as custom solutions

MMC Cable Assemblies

Find Parts

Features and Benefits

To meet AI- and machine learning-driven demands for increased bandwidth, data centers need to accommodate more connectivity in smaller spaces while maintaining high speed, reliability and signal integrity. Interconnect solutions must also support streamlined installation and maintenance.

By adopting high-density optical connectors, data centers can simplify network management, enhance design flexibility and maximize performance and efficiency. Ensuring robust EMI shielding supports high-speed connectivity even in dense applications, while components optimized for fast and simple installation help reduce assembly errors and system downtime.

The VSFF form factor and 16- or 24-fiber capacity of the MMC connector system supports high fiber counts and enables the aggregation of 8- or 12-fiber transceivers, providing higher fiber capacity per rack unit and supporting high-bandwidth applications. The MMC system offers EMI shielding to ensure exceptional signal integrity and low latency. MMC connectors use a push-pull boot and polarized rails to simplify mating and reduce assembly errors, minimizing downtime and improving efficiency.

Enhanced Space Utilization

The compact VSFF design of the MMC connector supports up to three times the fiber density of standard MPO/MTP solutions, enabling higher fiber counts in the same 1RU space to support growing demands for capacity driven by 5G, AI and the Internet of Things.

Exceptional Versatility and Simplified Installation

The MMC system offers hybrid cable assemblies to MPO, LC duplex and MDC connectors, offering flexibility in data center installation and design. The push-pull boot and guiderail features make installation easier and reduce the potential for assembly errors.

MMC Connectors

Superior EMI Protection

A line of EMI shielding adapters for the MMC system helps ensure a clean signal, improving signal integrity (SI) and reducing the risk of failure in challenging environments subject to electronic noise.

MMC Connectors

Offers higher port density than alternative optical connectors 
The compact form factor delivers up to three times the fiber density per rack unit when compared to MPO/MTP connectors.

Supports higher data rates and increased capacity for data centers
With increased fiber counts of 16 or 24 fibers in a single connector, the MMC system simplifies capacity upgrades for high-performance applications like hyperscale data centers.

Simplifies data center architecture by consolidating multiple connections into one connector 
Aggregating multiple 8F MPO/MTP connections into a single 16F MMC connector streamlines infrastructure and helps optimize both space and network reliability. 

Enhances EMI protection and helps improve signal integrity
EMI adapters use shielded designs, grounding mechanisms and high-quality materials to improve performance in applications subject to electronic noise.

Simplifies installation and maintenance
The push-pull boot and polarized guiderails make installation faster and easier while reducing the chance of assembly errors.

Datasheets and Guides

Applications by Industry

16- and 24-fiber applications
High-density patch panels
QSFP-DD applications
Signal aggregation devices

16- and 24-fiber applications
AI & Machine Learning
High-density patch panels
OptoConnect aggregation enclosures

 

Front panel I/O connections
High-bandwidth transceivers

Frequently Asked Questions

What is the expected loss rate for MMC connectors?
MMC Cable Assemblies and Adapters enable IEC Grade B insertion-loss performance of less than 0.35 dB, with an angled physical contact (APC) interface that supports superior return-loss performance of less than -55 dB. 

What are the advantages of MMC connectors over standard MPO/MTP connectors?
MMC connectors use a VSFF design to maximize the port density, enabling up to three times the cabling port density when compared with MPO/MTP connectors. This enables higher bandwidth per rack unit for multiple applications, including structured cabling, hyperscale data center connectivity, transceivers and onboard optics.

In what fiber counts are MMC solutions available?
MMC Cable Assemblies and Adapters are currently offered in 16- and 24-fiber TMT ferrule options.