What Is the CB-M12-4LC-MMF25M=? Key Features, Compatibility, and Procurement Insights

​​Defining the CB-M12-4LC-MMF25M=: Core Specifications​​

The ​​CB-M12-4LC-MMF25M=​​ is a Cisco QSFP+ (Quad Small Form-Factor Pluggable) transceiver module designed for high-density, short-range multimode fiber (MMF) deployments. Key technical attributes include:

• ​​40Gbps Data Rate​​: Supports 40GBASE-CWDM4 standards for high-speed connectivity.
• ​​12-Wavelength MUX/DEMUX​​: Utilizes coarse wavelength division multiplexing (CWDM) across four lanes.
• ​​25-Meter Reach​​: Optimized for OM3/OM4 multimode fiber with a maximum distance of 25 meters.
• ​​Low Power Consumption​​: Engineered for energy efficiency in data center environments.

This module is commonly integrated into Cisco switches and routers to enable 40G Ethernet or 4x10G breakout configurations.

​​Compatibility and Use Cases​​

​​Q: Which Cisco devices support the CB-M12-4LC-MMF25M=?​​
The transceiver is compatible with platforms such as:

• ​​Cisco Nexus 9000 Series switches​​ (e.g., N9K-C9336C-FX2, N9K-C93180YC-EX).
• ​​Cisco UCS Fabric Interconnects​​ (e.g., 6200/6300 Series).

​​Q: Where is this module typically deployed?​​

• ​​Data Center Interconnects​​: Short-distance spine-leaf architectures.
• ​​High-Performance Computing​​: Clusters requiring low-latency 40G links.
• ​​Enterprise Backbone Networks​​: Aggregation layers with OM3/OM4 cabling.

​​Performance Advantages​​

• ​​Cost-Effective Density​​: Enables 40G speeds without costly single-mode fiber upgrades.
• ​​Simplified Breakout Configurations​​: Converts 40G ports into 4x10G interfaces using MTP-to-LC breakout cables.
• ​​Temperature Resilience​​: Operates in extended temperature ranges (-5°C to 70°C), ideal for non-climatically controlled spaces.

​​Procurement Guidance: Sourcing via Itmall.sale​​

For organizations seeking authentic Cisco modules, ​​“CB-M12-4LC-MMF25M=”​​ is available through Itmall.sale’s verified inventory. Benefits include:

• ​​Assured Genuineness​​: Direct Cisco-authorized stock with full warranty coverage.
• ​​Competitive Pricing​​: Discounts for bulk purchases compared to standard retail.
• ​​Same-Day Shipping​​: Expedited delivery for urgent deployments.

​​Deployment Best Practices​​

1. ​​Verify Fiber Type​​: Confirm OM3/OM4 compatibility to avoid signal loss.
2. ​​Check Firmware Compatibility​​: Ensure switch firmware supports the transceiver.
3. ​​Monitor Thermal Conditions​​: Avoid prolonged exposure to temperatures beyond operational limits.

​​Why This Module Matters for Modern Networks​​

In a landscape demanding rapid scalability, the ​​CB-M12-4LC-MMF25M=​​ balances performance with budget constraints. Its ability to future-proof existing multimode infrastructure makes it indispensable for enterprises prioritizing agility. From my experience, pairing this transceiver with platforms like the Nexus 9000 series minimizes upgrade costs while maintaining backward compatibility—a strategic approach for growing networks.

For reliable procurement and technical assurance, Itmall.sale remains a practical choice for IT teams navigating complex hardware needs.