High-Density 72-Core MPO/MTP® Breakout Trunk Cable

Product Overview

The 72-Fiber MPO/MTP® Conversion Trunk Cable is a high-density cabling solution designed to bridge the gap between different fiber network architectures. As data centers migrate from 10G to 40G, 100G, and 400G, the need to connect legacy infrastructure with new high-speed optics often creates fiber waste. This conversion trunk eliminates unused fibers by intelligently mapping signal paths between connectors (e.g., converting three 8-fiber links into two 12-fiber ports or connecting Base-24 to Base-12 infrastructures).

At MeFiber, we engineer these conversion assemblies to ensure 100% fiber utilization. By consolidating 72 fibers into a compact, manageable trunk, this cable significantly reduces congestion in high-density patching areas. Whether you are connecting multiple SR4 transceivers to high-density trunk ports or migrating to parallel optics, our MPO/MTP® conversion cables provide a cost-effective, low-loss solution without the need for complex field termination.

Key Features

• High-Density 72-Fiber Capacity: Consolidates multiple links into a single assembly, reducing cable clutter in pathways.
• 100% Fiber Utilization: Designed to eliminate “dark fibers” when connecting 40G/100G (Base-8) optics to standard Base-12 trunk infrastructure.
• Flexible Configuration: Available in various conversion map scenarios (e.g., 2×3 conversion) to suit specific network topologies.
• Premium MPO/MTP® Connectors: Utilizes high-precision ferrule technology for minimal insertion loss and superior return loss.
• Multiple Fiber Types: Configurable with Singlemode (OS2) or Multimode (OM3/OM4/OM5) fiber to match your transceiver distance requirements.
• Space Saving: Small diameter trunk cable improves airflow and cable management in server racks.

Applications

This conversion trunk is essential for optimizing modern data center architectures:

• Base-12 to Base-8 Migration: Connects standard 12-fiber backbone trunks to 8-fiber transceivers (like QSFP+ and QSFP28) without wasting 33% of the fiber.
• High-Density Patching: Aggregates multiple low-speed links into high-speed aggregation switches.
• 100G/400G Upgrades: Facilitates seamless migration to higher bandwidths using existing cable containment.
• Direct Equipment Connections: connects core switches to distribution areas with optimized polarity.

Specifications

Performance Assurance

MeFiber is dedicated to delivering carrier-grade reliability. Every 72-Fiber MPO/MTP® trunk undergoes rigorous end-face inspection and interferometry testing to ensure physical contact integrity. We test for insertion loss and return loss on every channel to guarantee that your conversion cable performs flawlessly under high-bandwidth loads, adhering to IEC and TIA standards.

FAQ

1. What is the difference between MPO and MTP®?

MPO (Multi-Fiber Push On) is the standardized interface type defined by the IEC. MTP® is a high-performance brand of MPO connector manufactured by US Conec. The MTP® connector features advanced engineering, such as elliptical guide pins and a floating ferrule design, which reduce wear and ensure more precise physical contact. While standard MPO connectors work well for general use, MTP® connectors are preferred for high-density, critical network links where signal integrity is paramount.

2. What is a “Conversion” trunk cable?

A conversion trunk cable has a different number or grouping of connectors on each end. For example, it might have six 12-fiber MPO connectors on one end and three 24-fiber MPO connectors on the other, or it might map three 8-fiber links (used for 40G/100G) into two 12-fiber connectors. This allows you to use 100% of the fibers in your backbone cabling, avoiding the waste of unused strands common in Base-8 applications.

3. Can I order this cable with different lengths?

Yes. This is a customizable product. You can specify the exact length required for your data center to avoid slack loops and congestion. You can also select the fiber type (OM3, OM4, OS2) and the connector gender (Pinned or Unpinned) to match your equipment.

4. Does this cable support 400G?

Yes, provided the fiber type and transceiver specifications match. For 400G applications (such as SR8), conversion cables are often used to aggregate fibers from multiple transceivers into high-density trunk ports. Using high-quality OM4 or OM5 fiber ensures support for these next-generation speeds.