MDC to MDC Fiber Optic Patch Cord | Ultra-Compact Connectivity for 400G High-Density Data Centers

The MDC to MDC Fiber Optic Patch Cord represents the latest generation of duplex fiber connectivity designed for ultra-high-density environments. Developed by US Conec, the MDC interface achieves three times the density of standard LC connectors while maintaining superior optical performance. It features a convenient push-pull boot for quick installation and removal, even in congested panels. Available in OS2 single-mode and OM3/OM4/OM5 multimode options, the MDC-MDC jumper is ideal for 400G/800G networks, hyperscale data centers, and modern cloud infrastructure.

Feature Details

1. Ultra-Compact Form Factor
   Each MDC connector occupies one-third the space of a standard LC duplex connector, tripling panel density and simplifying cable management in large data centers.
2. Push-Pull Accessibility
   The integrated push-pull tab enables effortless insertion and extraction from high-density transceiver ports, eliminating the need for special tools.
3. Excellent Optical Performance
   Engineered with precision ferrules and low-loss fiber assemblies, ensuring stable IL ≤ 0.25 dB and RL ≥ 50 dB, ideal for 400G/800G links.
4. Polarity Reversible Design
   Quick polarity change (A/B) supports flexible installation, reducing maintenance time and preventing cross-connection errors.
5. Broad Fiber Compatibility
   Supports OS2 for long-haul single-mode links and OM3/OM4/OM5 for high-speed short-reach multimode applications.
6. Standards Compliance
   Manufactured under IEC 61754-36 and TIA-604-38 specifications, guaranteeing interoperability with MDC cassettes, modules, and transceivers.

Product Specifications

Deployment Notes

• MDC-to-MDC patch cords are typically selected for 400G/800G high-density architectures where the MDC interface standard has been defined at the system design stage.

• Not recommended for environments where connector interface selection (MDC vs LC) has not yet been finalized.

Application Details

• High-Density Data Centers – Ideal for 400G/800G switch-to-server connectivity and MDC cassette interconnections.
• Cloud Infrastructure – Compact design supports scalable growth without expanding rack space.
• Test Labs & Equipment – Used in optical test benches and measurement setups where easy plug-in/out access is essential.
• AI / HPC Clusters – Ensures reliable low-loss connections between GPU servers and optical interconnect modules.
• Edge Computing Cabinets – Reduces footprint while maintaining enterprise-grade optical performance.

FAQ

Q1: What is an MDC connector?
A1: MDC (Mini Duplex Connector) is a next-generation fiber interface developed by US Conec, offering three times the density of an LC duplex connector.

Q2: What are the advantages of MDC over LC?
A2: MDC provides smaller size, push-pull operation, and higher port density—ideal for 400G and 800G transceiver modules.

Q3: Can MDC be used with LC ports?
A3: No, MDC and LC connectors are not mechanically compatible. However, MDC-to-LC hybrid patch cords are available for migration projects.

Q4: What fiber types are supported?
A4: Both single-mode (OS2) and multimode (OM3, OM4, OM5) are supported depending on transmission distance and bandwidth requirements.

Q5: How does the polarity reversal work?

A5: The MDC connector allows A/B polarity change by simply flipping the duplex clips—no re-termination required.

Q6: What applications are most common?
A6: High-density data centers, 400G/800G optical interconnects, and advanced testing environments.

Q7: Is OEM branding available?
A7: Yes, HOLIGHT offers OEM/ODM services including custom logo printing, cable color, and length options.

Q8: How are MDC patch cords tested?
A8: Every assembly is 100% tested for insertion loss, return loss, and end-face geometry compliance before shipment.