1. Product Overview

The MTP/MPO to 8 x LC OM4 Breakout Cable (also known as a Harness or Fan-out) is designed for high-density patching in data center environments. It features a single MPO/MTP connector on one end that fans out into 8 discrete LC connectors (typically arranged as 4 duplex pairs). Utilizing OM4 50/125μm fiber, it supports high-speed data transmission over short to medium distances with significantly reduced cable bulk.

2. General Specifications

Item	Specification
Connector A	1 x MPO or MTP (8-Fiber or 12-Fiber, Female or Male)
Connector B	8 x LC/UPC Simplex (or 4 Duplex)
Fiber Mode	Multimode OM4 50/125μm
Fiber Count	8 Cores
Polarity	Method B (Standard for QSFP) or Custom
Jacket Material	LSZH (Low Smoke Zero Halogen) / OFNP (Plenum)
Jacket Color	Aqua (Standard) or Erika Violet
Breakout Diameter	2.0mm or 0.9mm (Fan-out legs)
Standards	TIA-604-5 (FOCIS 5), IEC 61754-7, RoHS

3. Optical Performance

Parameter	MTP/MPO Connector	LC/UPC Connector
Insertion Loss (IL)	≤ 0.35 dB (Elite/Low Loss)	≤ 0.25 dB
Return Loss (RL)	≥ 20 dB	≥ 30 dB
Test Wavelength	850nm / 1300nm	850nm / 1300nm
Bandwidth (EMB)	4700 MHz·km @ 850nm	4700 MHz·km @ 850nm

4. Mechanical & Environmental Characteristics

Operating Temperature: -20°C to +70°C
Storage Temperature: -40°C to +85°C
Minimum Bend Radius: 7.5mm (Bend-Insensitive OM4)
Transmission Distance: 40G/100G: 100m @ 850nm / 10G: 400m @ 850nm
Durability: >500 mating cycles

Product Applications

The MPO-to-8xLC OM4 breakout cable is a strategic component for optimizing high-speed multimode networks:

1. 40G/100G to 10G/25G Port Breakout

This is the primary application in modern data centers. It allows a single QSFP+ (40G) or QSFP28 (100G) transceiver port to be fanned out into four separate 10G (SFP+) or 25G (SFP28) ports. This maximizes switch port density and allows for granular distribution of bandwidth from a core switch to individual servers.

2. High-Density SAN & Fiber Channel

Ideal for connecting high-speed Storage Area Network (SAN) director switches to individual storage arrays. The OM4 fiber provides the high bandwidth and low latency required for mission-critical data retrieval and storage operations.

3. Structured Cabling Distribution

Used to connect MPO/MTP backbone trunks directly to LC-based patch panels or active equipment. This "Plug-and-Play" approach eliminates the need for bulky fiber cassettes in certain configurations, reducing the depth required in shallow wall-mount cabinets or crowded racks.

4. Parallel Optics to Duplex Transition

Many next-generation optics use parallel transmission (multiple fibers for one signal). This breakout cable serves as the mechanical bridge between these parallel MPO-based optics and traditional duplex LC-based infrastructure, allowing for a phased hardware upgrade.

5. AI and Machine Learning Clusters

In AI clusters where GPU-to-GPU communication requires ultra-high bandwidth over short distances, these breakout cables provide a clean, organized, and low-loss pathway to manage the massive amount of fiber connections required between compute nodes.

Professional Recommendation:

To ensure peak performance in 100G environments, always use Elite/Low Loss MPO connectors. The tighter insertion loss tolerances are essential for maintaining the optical power budget when multiple patches are present in a single link. Optimize your data center with MPO/MTP to 8x LC OM4 breakout cables. Ideal for 40G QSFP+ to 10G SFP+ port splitting. Features Elite Low Loss Aqua LSZH. MPO to LC breakout, MTP fan-out cable, 40G to 10G breakout, 100G to 25G split, OM4 8-core harness, Aqua fiber patch cord, QSFP28 breakout cable.