NSComm MPO 12F to 2xMPO 4F APC Breakout Cables, 8 Fibers, Multimode (OM4), OFNF, Low Loss, Polarity Type B

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Features
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Bend insensitive fibre paired with high-performance MPO connectors delivers reliable connectivity for dense data centre and carrier-grade applications.
Overview
The NSComm MPO 12F to 2xMPO 4F APC low loss breakout cable is a high-density OM4 multimode fanout solution engineered for 400G/800G data center architectures. With one 12-fiber MPO-12 APC (Female) trunk splitting into two 4-fiber MPO-4 APC (Female) legs, this assembly provides a 4-channel-to-two 2-channel splitter design that uses 8 active fibers for transmission and 4 inactive fibers as additional strength members. The APC endfaces feature an 8-degree angled polish to deflect internal back reflections away from sensitive transceivers, helping maintain signal integrity at high data rates.
Built with bend-insensitive OM4 50/125 μm multimode fiber and a riser-rated OFNR jacket, this Type B breakout cable is ideal for short-reach parallel optics deployments in high-density racks. When used in pairs, two MPO-12 to 2×MPO-4 APC cables can link an 800G NVIDIA InfiniBand twin-port OSFP transceiver to four 400G NVIDIA InfiniBand OSFP/QSFP112 transceivers, enabling efficient 1×800G-to-4×400G fanout in high-speed multimode links. When 400G transceivers are used with the 1:2 breakout, only two channels are activated per leg, effectively creating 200G links. Compared with separate breakout cassettes, MPO breakout cables reduce interconnect points, lower insertion loss, and provide a more cost-effective solution.
Need help verifying polarity, fiber mapping, or compatibility with your 400G/800G SR optics? Contact us now and our team will help validate your design before deployment.
Key Specifications
| Specification | Details |
|---|---|
| Vendor Name | NSComm |
| Product Type | MPO 12F to 2xMPO 4F APC Multimode Breakout Cable |
| Connector A | MPO-12 APC Female (Pinless), Low Loss |
| Connector B | 2 × MPO-4 APC Female (Pinless), Low Loss |
| Polish Type | APC to APC, 8° angled endfaces |
| Fiber Mode | OM4 50/125 μm Multimode |
| Glass Fiber | Bend-insensitive multimode fiber |
| Wavelength | 850 nm / 1300 nm |
| Fiber Count | 8 Active Fibers (4 channels) + 4 Inactive Fibers |
| Polarity | Type B |
| 400G Ethernet Distance | Up to 50/100 m at 850 nm (application dependent) |
| 800G Ethernet Distance | Up to 50 m at 850 nm (application dependent) |
| Cable Outside Diameter (OD) | 3.0 mm (trunk, typical) |
| Cable Jacket | Riser-rated, OFNR |
| Minimum Bend Radius | 7.5 mm |
| Trunk Length | 0.2 m (typical trunk before breakout) |
| Installation Tensile Load | 66 N |
| Tensile Strength | 60/120 N (Long/Short Term) |
| Insertion Loss | Low Loss, ≤ 0.35 dB Max (Typ. 0.15 dB) |
| Return Loss | ≥ 45 dB (APC) |
| Attenuation @ 850 nm | ≤ 2.3 dB/km |
| Attenuation @ 1300 nm | ≤ 0.6 dB/km |
| Operating Temperature | -10 to 60 °C (14 to 140 °F) |
| Storage Temperature | -10 to 70 °C (14 to 158 °F) |
| Standards Compliance | MPO interface standards, OM4/MMF, RoHS compliant |
| Applications | 1×800G to 4×400G fanout, 400G to 200G downshift, high-speed MM breakout in leaf–spine DC |
Why Choose NSComm MPO 12F to 2xMPO 4F APC Low Loss OM4 Breakout Cables?
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Optimized for 400G/800G SR fanout – Designed to link 800G twin-port OSFP transceivers to multiple 400G OSFP/QSFP112 SR optics.
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Efficient 4-to-2 channel splitter design – Uses 8 active fibers and 4 inactive fibers for robust, high-density deployment.
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Lower loss vs. cassette solutions – Direct MPO breakout reduces connector counts and overall insertion loss.
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High return-loss APC performance – 8° angled APC endfaces help minimize back reflections and improve signal quality.
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Bend-insensitive OM4 multimode fiber – Maintains optical performance in tight routing and dense patching environments.
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Riser-rated OFNR construction – Suitable for structured cabling, in-cabinet routing, and large-scale data center backbones.
Length Options
Standard stocked lengths:
Available in common breakout lengths tailored for short-reach 400G/800G patching between switches and transceivers within and between racks.
Custom lengths:
Custom trunk lengths, breakout leg lengths, labeling, and configurations are available on request to match your panel layouts, trunk routing, and optics locations.
More Details
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