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QSFP Breakout Cables

QSFP Breakout Cables

MTP FiberShield Specifications

QSFP Breakout Cables (also known as MTP to LC breakout cables, harness cables, or fanout cables) feature a higher performing MPO connector than the industry standard, which was designed by US Conec. Each MTP® connector minimizes insertion loss, decreases equipment wear and tear, and ensures a physically secure connection. This enables each QSFP Breakout Cable to provide unmatched performance, particularly in mission-critical telecommunications and datacenter applications.

OptoSpan QSFP Breakout cables are made up of eight, twelve, or twenty-four fiber cables that terminate in an MTP connector on one end and four, six, or twelve pairs of LC duplex connectors on the other. This enables seamless conversion from duplex-based (LC) 10G systems to 40G and 100G MTP applications based on parallel optics. OptoSpan's unique and exclusive FiberShield design is used on these MTP Breakout Cables. FiberShield uses three times the amount of PVC jacket and DuPont Kevlar to shield the cables' sensitive optical fibers, resulting in a flexible yet sturdy 4.5mm cable that is five times stronger than regular 3.0mm cable.

QSFP Breakout Cables are often used to divide high-speed QSFP28, QSFP+ or a QSFP port on a network switch into many lower-speed SFP+ ports. A switch having 40G ports, for example, can be linked to 10G server ports.  QSFP Breakout cables, for example, can be used for the following conversions:

For multimode applications:

  • Convert 40GBASE-SR4 to 4 x 10GBASE-SR
  • Convert 100GBASE-SR4 to 4 x 25GBASE-SR
  • Convert 400GBASE-SR8 to 8 x 50GBASE-SR

For single-mode applications:

  • Convert 400GBASE-DR4 to 4 x 100GBASE-DR

In addition, these MTP Breakout cables can be used to connect MPO/MTP-based LAN switches and servers to LC-based patch panels and infrastructure. For more information, please see our main MTP Cables page.

OptoSpan's QSFP Breakout Cables are pre-configured with the abovementioned connections!

QSFP Breakout Cable with FiberShield: OptoSpan's 8-, 12-, and 24-fiber standard MTP Breakout Cables have exclusive FiberShield technology that is 5x stronger and contains 3x the PVC and DuPont Kevlar found in competing MTP Breakout Cables. These MTP Fanout Cables are 3mm or 4.5mm thick, which protects them from inadvertent damage during installation.

8-Fiber QSFP Breakout

8-Fiber QSFP Breakout

12-Fiber QSFP Breakout

12-Fiber QSFP Breakout

48-Fiber QSFP Breakout

48-Fiber QSFP Breakout

72-Fiber QSFP Breakout

72-Fiber QSFP Breakout

96-Fiber QSFP Breakout

96-Fiber QSFP Breakout

144-Fiber QSFP Breakout

144-Fiber QSFP Breakout

Do you need help choosing the correct QSFP Breakout Cables for your application? SanSpot’s MTP network engineers can evaluate your unique situation and recommend a complimentary cable configuration that is suitable for your needs. Please feel free to contact us toll-free at 1-800-720-3860, or you can email [email protected].

How do you choose the right MTP Trunk Cable for your application?

SteelPatch Armored MTP Breakout Cables: OptoSpan SteelPatch Armored MTP Breakout Cables are manufactured with a specific steel jacket that is sculpted into a helical pattern to protect the interior fibers. SteelPatch protection increases the cable strength by sevenfold while staying completely flexible and lightweight.

SteelFlex Armored QSFP Breakout Cables (Special Order): These top-of-the-line military-grade OptoSpan SteelFlex Armored QSFP Breakout cables include a proprietary OptoLock mechanism that utilizes an overlapping steel tube to secure the cable in place. This composition results in a cable that is unparalleled in terms of ruggedness while remaining lightweight.

Weatherproof (IP68) MTP Breakout Cables (Special Order): OptoSpan's IP68-rated Weatherproof MTP Breakout Cables offer superior resistance to water, dust, and extreme weather conditions. IP68 QSFP breakout cables are designed to protect optical fibers by utilizing a simple bayonet locking technique that does not require specialized tools for assembly.

What are the most common applications for QSFP Breakout cables?

MTP Breakout cables are typically used in data centers and telecommunications to quickly connect high-speed networks. There are two primary applications:

  • During the migration from 10G to 40G networks, eight-fiber QSFP to SFP breakout cables are utilized to link the MPO-based QSFP+ or QSFP28 transceiver to four independent LC-based 10G/25G SFP+ transceivers.
  • MTP Breakout Cables with 12 or 24 fibers are used to combine six or twelve duplex LC ports into a single MTP connector in a patch panel.

How do you determine which QSFP Breakout Cable is appropriate for your application?

The suitable cable depends on a number of critical criteria, including the kind of network optics, the fiber count, the cable polarity, the type of MTP connectors, and the type of fiber media (single-mode or multimode). If you are unsure or require assistance, please contact us before to placing an order!

Need Help? Get Answers from an MTP/MPO Experts

MTP Breakout Cable Applications:

  • 8-Fiber QSFP to SFP Breakout Cables are typically used to link one QSFP+ or QSFP28 transceiver with an MTP connector to four SFP+ transceivers with LC connectors.
  • 12-Fiber MTP Fanout Cables are commonly used to connect a single MPO component to twelve LC ports on patch panels or distribution frames.
  • 24-Fiber MTP Fanout Cables are typically utilized for 10G to 100G migration and high-density intra-patch panel applications in which 24 LC ports are consolidated into one MPO/MTP port.
  • 48-144 Fiber MTP Fanout Cables are available for any combination of the above applications.

QSFP Breakout Polarity:

  • Type B QSFP Breakout Cables (Standard) feature MPO/MTP connectors on one end and duplex LC connectors on the other, with pre-defined polarity for one 40G MPO to four 10G LC connections.
  • Type A QSFP Breakout Cables employ a straight-through design, with MPO/MTP pin 1 mapped to LC fiber 1, MPO/MTP pin 2 mapped to LC fiber 2, and so on.
  • Type C MTP Fanout Cables (Special Order) feature an MPO/MTP connector on one end and LC duplex connectors on the other. Each pair of LC fibers is flipped in this configuration.

MTP Breakout Cable Connectors:

Each configuration of an MTP breakout cable must define the type and gender of the MTP connections. The most common MTP connectors include eight, twelve, sixteen, or twenty-four pins. For instance, 12-fiber MTP Breakout Cables are typically used in 10G or 40G applications, whereas 8- and 24-fiber MTP Breakout Cables are typically utilized in 100G applications.

QSFP Breakout Cable Types

Standard MTP Breakout Cables

  • 8-Fiber QSFP to SFP fanout cables are used for distances of up to 150 meters for 40G QSFP+ and up to 100 meters for 100G QSFP28.
  • 12-Fiber MTP Breakout Cables use typical fanout cable to connect 12 LCs to one MTP connector.
  • 24-Fiber MTP Breakout Cables link 24 LCs to a single MTP connector.

SteelPatch Armored QSFP Breakout cables (7x stronger, but flexible)

  • 8-Fiber QSFP to SFP armored breakout cables are used for distances of up to 150 meters for 40G QSFP+ and up to 100 meters for 100G QSFP28.
  • 12-Fiber MTP to LC armored breakout cables link twelve LCs to a single MTP connection.
  • 24-Fiber MTP to LC armored breakout cables link 24 LCs to a single MTP connection.

In addition to the above available configurations, OptoSpan offers Custom QSFP Breakout Cables that are designed specifically for your application.

Quality and Engineering Excellence

By utilizing our proprietary manufacturing process developed over 15 years of experience, we are able to produce higher performance products using the same components, hence lowering the cost to our clients. OptoSpan cables are made in a Class 10,000 (ISO14644-1, ISO7) clean room facility, which eliminates the potential of end face contamination.

Rohs Compliant

Quality Management Systems

  • ISO 9001: 2008
  • TL9000 (Ver. 5)

Standards Compliance

  • Telcordia GR-326 Core
  • TIA-604-18: FOCIS 18
  • IEC 61754-7-3:2019

OptoSpan fiber optic cables are RoHS compliant.

MTP Fanout Cable Cleaning and Testing

MTP connectors are more prone to contamination due to their bigger surface area and array of fibers. OptoSpan advises cleaning MTP cables with these simple MPO cleaners prior to each insertion. Use the OptoSpan LC connector cleaner to clean the LC side.

OptoSpan offers a basic MPO fiber tester for troubleshooting MPO cable connections (fiber breaks or defects) during installation or for finding issues during normal operation.


You might be interested in the following MTP Cables related products.


Are you looking for custom-designed and purpose-built MTP cables? Visit our section on Custom MTP fiber optic cables...
Do you require MTP patch panels that are compatible with MTP assemblies? Visit our MTP Patch Panels...
Have you seen our industry leading MPO Cables? Our MPO Cables...
Do you require the strongest MTP fiber optic cables available in the industry? Visit our Armored MTP Cables section for more information...
For the highest performance MTP Cables, go to this link... MTP Elite Cables
If you prefer to use LC-LC breakout cables... Visit our Section on Breakout Fiber Cables...
> Need IP68 (Weatherproof) and additional MTP Cable options? Visit our section on Specialty Fiber Optic Cables...