Optical Communication Products · Shenzhen, China
Tel: +86 0755 23766314  ·  marketing@fotfiberoptic.com
Request a Quote
Measured fibre by fibreMPO to MPO Conversion / Breakout Harness — FOT Fiber Optic
Configure the assembly below — fibre count, type, polish, polarity, gender, jacket and length all update the specification table live.

MPO to MPO Conversion / Breakout Harness

SKU: FOT-MPO-CONV · Harness, Hydra & Conversion

Split one high-count MPO into several lower-count MPOs.

8F → 2 × 4FConversion
≤ 0.35 dBInsertion loss
NVIDIAMFP7E30 / MFP7E40 equivalent
APCAngled polish
Conversion
8F → 2 × 4F16F → 2 × 8F24F → 3 × 8F24F → 2 × 12F32F → 4 × 8F12F → 3 × 4F
Fibre type
OM4 multimodeOM3 multimodeOM5 widebandOS2 single-mode (G.652.D)G.657.A1 bend-insensitiveG.657.A2 bend-insensitive
Loss grade
Standard lossLow lossExtra low loss
Polish
APC (angled, 8°)UPC / PC (flat)
Gender
Female / FemaleMale / FemaleFemale / Male
Leg length
0.5 m1.0 m2.0 m
Length
3 m1 m2 m5 m10 m15 m20 m30 m
Configured part numberFOT-MPO-CONV
Request a Quote Request Datasheet
Ships worldwide
Built to your configuration
3-year warranty

Product Overview

A conversion harness re-groups fibres between MPO counts: an 800G SR8 port on one MTP-8 broken out to two 400G SR4 ports on two MTP-4, or a 24-fibre trunk regrouped into three 8-fibre legs. It is what lets a high-radix switch port feed several lower-speed devices without wasting fibres in the trunk.

Assemblies are built on US Conec MTP® ferrules and terminated in a controlled environment, then measured fibre by fibre. Interferometry checks the three geometry parameters that decide whether a multi-fibre ferrule mates properly — radius of curvature, apex offset and fibre height — and every end face is inspected and graded to IEC 61300-3-35 before the dust cap goes on.

Fibre count, fibre type, polish, polarity, gender, jacket rating, leg length and overall length are all build options rather than catalogue limits. Use the selector above to configure the exact assembly and the specification table will follow your choices; the measured test report ships with the cable.

Technical SpecificationsUpdates with your selection

Optical
Conversion1 × MPO-12 (8F loaded) → 2 × MPO-12 (4F loaded)
Fiber Count8F
Fiber TypeOM4 50/125 µm laser-optimised multimode
Wavelength850 / 1300 nm
Insertion Loss≤ 0.35 dB
Return Loss≥ 60 dB
Connector PolishAPC — 8° angled, green housing
PolarityCrossover wiring for parallel optics breakout
Typical Insertion Loss0.25 dB
Loss GradeStandard
Mechanical & Environment
ConnectorUS Conec MTP® / MPO
GenderFemale (unpinned) both ends
Breakout Leg Length0.5 m
Cable JacketLSZH round, 3.0 mm
Jacket ColourAqua / Violet
Length3 m
OEM EquivalenceFunctionally equivalent to NVIDIA MFP7E30 (MMF) / MFP7E40 (SMF) series
Min. Bend Radius10 × cable OD dynamic, 5 × static
Crush Resistance≥ 1000 N / 100 mm
Tensile StrengthShort term 100 N / long term 30 N
Operating Temp-10 °C to +60 °C
Storage Temp-40 °C to +75 °C
ComplianceIEC 61754-7, TIA-604-5 (FOCIS-5/10), RoHS
Testing, Quality & Supply
Optical Test100% — every fibre measured for insertion loss and return loss before shipment
Ferrule GeometryInterferometer-verified: radius of curvature, apex offset and fibre height to IEC 61755-3
End-Face InspectionEvery ferrule inspected and graded to IEC 61300-3-35
Test ReportPer-fibre measured data supplied with the assembly, traceable to the serial number
Connector SourceUS Conec MTP® ferrules; genuine-brand or FOT MPO to your preference
CustomisationFibre count, type, polish, polarity, gender, jacket, leg length and overall length built to order
Lead TimeStock configurations 3–5 days; custom builds 7–10 days
Warranty3 years

Ordering Information

Part NumberConfigurationFibre countAvailability
FOT-MPO-CONVStandard configuration8FBuild to order
FOT-MPO-CONV-16T28Conversion: 16F → 2 × 8F16FBuild to order
FOT-MPO-CONV-24T38Conversion: 24F → 3 × 8F24FBuild to order
FOT-MPO-CONV-24T212Conversion: 24F → 2 × 12F24FBuild to order
FOT-MPO-CONV-32T48Conversion: 32F → 4 × 8F32FBuild to order
FOT-MPO-CONV-12T34Conversion: 12F → 3 × 4F12FBuild to order
FOT-MPO-CONV-OM3Fibre type: OM3 multimode8FBuild to order
FOT-MPO-CONV-OM5Fibre type: OM5 wideband8FBuild to order
FOT-MPO-CONV-OS2Fibre type: OS2 single-mode (G.652.D)8FBuild to order

Part numbers are indicative. Send us the fibre count, type, polish, polarity, gender, jacket and length and we confirm the exact build code on the quotation.

Quality & What's in the Box

Measured Fibre by Fibre

Insertion loss and return loss recorded for every fibre, not sampled.

Geometry Verified

Interferometer data on ferrule radius, apex offset and fibre height.

Inspected & Graded

Every end face checked against IEC 61300-3-35 before packing.

Packaging

Dust-capped, coiled on a reel or in a bag with the test report and pulling sock.

Typical Applications

Data Centre Spine & Leaf

Parallel 40G/100G/400G/800G backbone between spine, leaf and top-of-rack panels.

AI / GPU Clusters

Rail-optimised accelerator fabrics where one switch port breaks out to several GPUs.

Structured Cabling

Pre-terminated backbone that installs in hours instead of days, with the loss budget known up front.

Test & Commissioning

Loopbacks, attenuators and inspection for proving ports before the link goes live.

Frequently Asked Questions

Is this compatible with NVIDIA MFP7E30 / MFP7E40 cables?

It is built to the same 8-fibre-to-2×4-fibre configuration and APC polish, so it functions in place of those parts in an 800G-to-2×400G breakout. It is an FOT-manufactured assembly, not an OEM-branded part; MFP7E30 and MFP7E40 are NVIDIA part numbers listed for compatibility reference only. Send us the exact part number you are replacing and we confirm the pinout before building.

Do I still have to configure breakout on the switch?

Yes. The cable is passive — it moves fibres, it does not split lanes. The port has to be configured for breakout in the switch OS, and on most platforms that needs a reload. Decide the breakout ratio before you cable, not after.

Why does the conversion harness need APC?

Because these are single-mode parallel links in most cases, and with eight lanes in one ferrule the reflection budget is tight. On multimode builds UPC is normal. Whichever you pick, both ends of every mated pair in the channel must match.

How is the assembly labelled?

Both ends carry a printed label with the part number, fibre count, fibre type, polarity type and the serial number, and breakout legs are individually numbered. Tell us your own labelling convention on the RFQ and we print to it — it costs nothing and it saves an afternoon at installation.

Can I get free samples before ordering volume?

Yes. We supply qualification samples so you can measure the loss and check the fit in your own panels before committing. Per-order test reports are standard, and sample reports can be provided in advance for tender documentation.

Related MPO / MTP Products

MPO/MTP to LC / SC / FC Harness Cable
Harness, Hydra & Conversion

MPO/MTP to LC / SC / FC Harness Cable

MPO/MTP to LC Hydra Breakout Cable
Harness, Hydra & Conversion

MPO/MTP to LC Hydra Breakout Cable

MPO/MTP Trunk Cable
Trunk & Jumper Cables

MPO/MTP Trunk Cable

MPO/MTP Bundle / Multi-Leg Trunk Cable
Trunk & Jumper Cables

MPO/MTP Bundle / Multi-Leg Trunk Cable

Request a quote for this part

Tell us the platform and the quantity. An engineer checks the part against your switch and software version before quoting — if it will not work, we say so.

Goes to our engineers and the quotation desk together. Replies come from sales@topnetsystem.com, usually within one working day.