What Is the CB-M12-4LC-MMF2M=? Key Features and Deployment Insights for Cisco Networks



​Understanding the CB-M12-4LC-MMF2M= Module​

The ​​CB-M12-4LC-MMF2M=​​ is a specialized Cisco transceiver module designed for high-density fiber connectivity in enterprise and data center environments. This compact, hot-swappable module supports ​​multimode fiber (MMF)​​ with a 2-meter reach, making it ideal for short-distance, high-bandwidth applications. Its 12-port configuration (4 LC duplex connectors) enables efficient cable management while maintaining performance.


​Core Technical Specifications​

  • ​Fiber Type:​​ Multimode (OM3/OM4) with 850nm wavelength.
  • ​Port Density:​​ 12 ports (4 LC duplex interfaces).
  • ​Data Rate:​​ Supports 1G/10G Ethernet speeds.
  • ​Compatibility:​​ Optimized for Cisco Catalyst 9000 and Nexus series switches.
  • ​Form Factor:​​ SFP+ (Small Form-Factor Pluggable).

​Why Deploy the CB-M12-4LC-MMF2M=? Key Use Cases​

  • ​High-Density Data Centers:​​ Minimizes rack space while maximizing port density for spine-leaf architectures.
  • ​Cost-Effective Short-Reach Links:​​ Replaces expensive single-mode solutions for intra-rack or adjacent rack connectivity.
  • ​Simplified Upgrades:​​ Hot-swappable design allows seamless integration without network downtime.

​Critical Compatibility Considerations​

Before deploying the CB-M12-4LC-MMF2M=, verify:

  • ​Switch Support:​​ Confirm compatibility with your Cisco switch’s IOS-XE or NX-OS version.
  • ​Fiber Compatibility:​​ Use OM3/OM4 cables to avoid signal loss.
  • ​Power Budget:​​ Ensure the switch’s power supply accommodates multiple modules.

​Purchasing and Authenticity: Why itmall.sale?​

For genuine Cisco modules like the ​​CB-M12-4LC-MMF2M=​​, sourcing from authorized suppliers is non-negotiable. Counterfeit components risk network instability and void warranties. [“CB-M12-4LC-MMF2M=” link to (https://itmall.sale/product-category/cisco/) offers verified, factory-sealed units with full Cisco support.


​Performance vs. Alternatives: When Does It Make Sense?​

​Feature​ ​CB-M12-4LC-MMF2M=​ ​Generic 10G MMF Module​
Port Density 12 ports 4-8 ports
Cisco Compatibility Guaranteed Limited/Unverified
Warranty & Support Full Cisco coverage None/Third-party only

​Final Thoughts: A Technician’s Perspective​

The CB-M12-4LC-MMF2M= exemplifies Cisco’s focus on scalability and reliability for modern networks. While cheaper alternatives exist, their hidden costs in troubleshooting and downtime far outweigh upfront savings. For mission-critical environments, investing in certified hardware isn’t just prudent—it’s essential.

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