SM 16 cores MTP Female to 8x MDC APC harness Cables assemblies
Designed for next-generation ultra-high-density data centers, this 12-core MTP® to 8x MDC Duplex harness fanout cable delivers an unmatched space-saving transition solution. Featuring a single 12-fiber MTP® connector that efficiently breaks out into eight MDC duplex interfaces via ruggedized 2.0mm legs, it maximizes port density while providing superior physical durability.
Available in SM (OS2), OM3, and OM4 fiber types, this plug-and-play assembly supports diverse high-speed transmission requirements, seamlessly bridging high-capacity MTP® trunks with advanced MDC infrastructure. The 2.0mm fanout legs offer excellent tensile strength and bend radius management, making them ideal for routing through congested Top-of-Rack (ToR) environments and connecting core switches to high-density patch panels.
Factory-terminated and 100% optically tested, each harness guarantees minimal insertion loss and reliable signal integrity. By eliminating complex on-site splicing, this solution significantly accelerates deployment timelines, providing a highly scalable and future-proof pathway for migrating to 100G, 200G, and 400G Ethernet architectures.
Description
Optical Specification:
| Spec items. | Insertion loss (IEC 61300-3-xx) | Return loss(IEC 61300-3-6 /TIA/EIA-455-107) | Standard |
| MTP SM | Standard MTP:≤0.75dB(max), ≤0.50dB(Typical) Elite MTP:≤0.35dB(max), ≤0.20dB(Typical) |
APC≥60dB; PC≥50dB | IEC 61300-3-4 / TIA/EIA-455-34 |
| MTP MM | Standard MTP:≤0.6dB(max), ≤0.50dB(Typical) Elite MTP:≤0.35dB(max), ≤0.20dB(Typical) |
PC≥50dB | IEC 61300-3-34 / TIA/EIA-455-61 |
| MDC SM | ≤0.3dB | APC≥60dB; PC≥50dB | IEC 61300-3-4 / TIA/EIA-455-34 |
| MDC MM | ≤0.3dB | PC≥50dB | IEC 61300-3-34 / TIA/EIA-455-61 |
End-Face 3D Interference Index
| Parameter | MTP® | MDC | Standard |
| Radius of Curvature, ROC | X: ≥ 2000 mm,Y: 50 mm | 10 ~ 25 mm (PC) 5 ~ 12 mm (APC) |
IEC 61300-3-30 |
| Fiber Height / Protrusion | -300 nm ~ +300 nm | ± 100 nm | IEC 61300-3-30 |
| Apex Offset | N/A | ≤ 50 μm | IEC 61300-3-30 |
| Angle | 8.0° ± 0.5° (APC) | 8.0° ± 0.5° (APC) | IEC 61300-3-30 |
| Core Dip | “-200 nm ~ +300 nm (SM)” | N/A | IEC 61300-3-30 |
MDC End-face Quality (SM)
| Zone | Range (μm) | Scratches | Defects | Reference |
| A: Core | 0 to 25 | None | None | IEC 61300-3-35:2015 |
| B: Cladding | 25 to 115 | None | None | |
| C: Adhesive | 115 to 135 | None | None | |
| D: Contact | 135 to 250 | None | None | |
| E: Rest of ferrule | None | None | ||
MDC End-face Quality (MM)
| Zone | Range (μm) | Scratches | Defects | Reference |
| A: Core | 0 to 65 | None | None | IEC 61300-3-35:2015 |
| B: Cladding | 65 to 115 | None | None | |
| C: Adhesive | 115 to 135 | None | None | |
| D: Contact | 135 to 250 | None | None | |
| E: Rest of ferrule | None | None | ||
MTP Connector’s Details:
| Connector | Fiber Channel |
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| MTP Female Connectors | 16 Fibers |
| Note: Female connector need to connect with male connector type. | |
| Connector | Reference | Housing Details |
| MTP Single Mode | IEC 61754-7 | SM APC: Green connectors+black boot (Standard Loss MPO)
SM APC: Yellow connectors+black boot (Super low loss MPO) |
| MTP Multimode | IEC 61754-7 | OM1&OM2 PC: Beige connectors+black boot (Standard Loss MPO)
OM3&OM4 PC: Aqua connectors+black boot (Standard&Super low loss MPO) OM3&OM4 PC: Heather Violet connectors+black boot (Standard loss MPO) |
- Meets IEC Standard IEC-61754-7; IEC61755, Telcordia GR-1435-CORE, JIS C5982; TIA-604-5(FOCIS5) compliant
- Structured cabling per TIA-568-C
- 10G Fiber Channel Compliant
- 40G and 100G IEEE 802.3
MDC Connector’s Details:

3x fiber cabling density over LC connectors, providing 216 duplex connectors (432 fibers) within 1 RU
DirectConecm push-pull boot for effortless connector insertion and extraction
Simple polarity reversal with no exposed fibers
Meets lEC Attenuation Grade B random mating requirements (0.12 dB mean, 0.25 dB maximum for 2 97% of the connectors)
Telcordia GR-326 and TlA-568 compliant
Designed for cables up to 2.0mm OD
Multi-mode,Singlemode and Singlemode APC available
Cable Parameters-16F Microfiber cable

| Item | Contents | Unit | Data |
| Fiber type | / | / | OS2 9/125um |
| Fiber Count | / | piece | 16 |
| Cable diameter | / | mm | 3.0±0.2 |
| Strength member | Material | / | Aramid Yarn |
| Max. tensile load | / | / | Short term:150N; Long term:80N |
| Outer sheath | material | / | LSZH, Plenum(OFNP),Riser(OFNR) |
| Temperature range | -20℃ ~ +70℃ |
Flame retardant Performance
| Cable material | Standard |
| LSZH | CPR : B2ca, Cca, Dca, Eca,Fca |
| OFNP&OFNR | UL-94V0 |
Cable Jacket Material
| Item | OFNP Plenum | LSZH | OFNR Riser |
| Smoke emission | Extremely low | Very low | Heavy black smoke |
| Toxic halogen gas | None | Zero | High (chloride) |
| Fire resistance rank | Highest | Medium | Medium-low |
| Plenum air space use | Allowed | Not UL certified, restricted | Strictly prohibited |
| Vertical riser shaft | Supported | Supported | Optimized for riser shafts |
| Rigidity & hardness | Stiff, firm texture | Soft, flexible | Moderate flexibility |
| Cost | Highest | Mid-range | Lowest |
Cable Drawing
This is Staggered harness cable, Each fanout cable length is different.
This is Straight harness cable, Each fanout cable length is same.
Length Tolerance
| Overall Length(L)(m) | length of tolerance(cm) |
| 0<L<1 | +5/-0 |
| 1<L<10 | +10/-0 |
| 10<L<40 | +15/-0 |
| 40<L | +0.5% x L/-0 |
Application
- Next-Generation 400G & 800G Network Migration
As data centers transition to higher bandwidths, this 12-fiber harness is essential for supporting advanced parallel optics. It is widely deployed to break out 400G QSFP-DD transceivers (such as 400G-SR8) into discrete MDC channels. This allows network architects to seamlessly migrate from 100G infrastructure to 400G/800G Ethernet architectures while maximizing port utilization on high-capacity spine switches. - Ultra-High-Density Intra-Rack Connectivity
Benefiting from the ruggedized 2.0mm fanout leg diameter, this cable offers superior tensile strength and crush resistance. It is highly suitable for routing through dense cable managers and connecting Top-of-Rack (ToR) switches to server Network Interface Cards (NICs) or storage arrays in highly congested rack environments. - Structured Cabling Transition to MDC
Acting as a critical bridge in structured cabling systems, this harness connects high-capacity MTP backbone trunks to advanced MDC patch panels or active equipment. It eliminates the need for complex on-site splicing, significantly accelerating deployment timelines and providing a future-proof pathway for high-speed network upgrades. - AI Smart Computing & HPC Cluster Interconnects
In the era of AI and Big Data, massive GPU clusters require ultra-low latency and high-bandwidth connectivity. This 12-fiber solution is extensively deployed in High-Performance Computing (HPC) and AI smart computing centers to deliver deterministic, low-latency links between core switches, server racks, and massive storage arrays.
Summary: The 12F 2.0mm MDC harness is specifically optimized for next-generation 400G/800G breakout applications and AI/HPC cluster interconnects. It combines massive fiber capacity with the physical durability required for complex data center routing, providing a future-proof pathway for ultra-high-speed network migrations.







