100G QSFP28 variant mapping
Compare the optical architectures against the actual host, fibre, route, connector and operating requirement.
Review this routeCOMMERCIAL SUPPLY SOLUTION
100G QSFP28 Transceiver Supplier
100G QSFP28 Transceiver Supplier for professional buyers: specification review, compatibility support, OEM coordination and documented supply from China.
01Requirement review
02Sample-first option
03Lot QC coordination
04OEM / private label
05Documented handover
Variant scopeSR4 · DR1 · CWDM4 · LR4 · ER4 · PSM4
Physical pathMPO · LC · SMF/MMF
Host boundaryQSFP28 · FEC · breakout
Release unitComplete named link
Commercial overview
100G QSFP28 variants solve different fibre and host problems
100G QSFP28 is not one interchangeable module class. SR4, PSM4, DR1, CWDM4, LR4 and ER4 use different lane architectures, connectors, fibre counts, reaches and host assumptions. The RFQ should begin with the exact switch or router, port mode, FEC, fibre plant, connector, route loss and peer before a variant is selected.
Parallel-optic options can require MPO polarity, lane continuity and structured-fibre verification. Duplex LC options reduce fibre count but may introduce different power, FEC or reach considerations. Breakout use changes the decision again because the parent port, child lanes, cable assembly and all peers form one controlled link.
MingApex coordinates suitable 100G QSFP28 configurations with order-specific coding, source and evidence. Portfolio listings do not imply every variant is stocked or validated on every host. The final quotation identifies the exact optical type, connector, source, quantity, sample scope, MOQ and delivery boundary.
Decision matrix
The 100G QSFP28 link decisions to close
Keep unknown values visible. The selected product should follow the complete link and operating requirement, not a headline specification.
Open questionRequirementWhy it mattersRelease record
Optical variantSR4/PSM4 parallel optics, DR1 single-lambda, or CWDM4/LR4/ER4 duplex solutionsVariants with the same speed can use different fibres, connectors and lane architectures.Named optical type and source
Host and portExact QSFP28 port, coding, FEC, native 100G or breakout state and software releaseCoding, management and FEC behaviour can change by host and release.Host/port configuration record
Fibre and routeMPO or LC, fibre type/count, polarity, route loss, reach and peer architectureHeadline reach does not include every connector, passive element or peer assumption.Approved end-to-end link
Operational stateLane state, FEC, DOM, errors, breakout mapping, power, temperature and restartLink-up alone does not show thermal, error, lane or recovery behaviour.Named acceptance log
Supply continuitySource, components, firmware/management identity, label and change triggerA silent change can invalidate host or link acceptance.Controlled production reference
Supply options
Supply options
Parallel versus duplex fibre
Compare installed fibre count, MPO polarity, connector loss, migration flexibility and service method before choosing the optical architecture.
Review this routeHost compatibility review
Record the exact device, software, port mode, coding, management and acceptance checks.
Review this routeSample and golden-link approval
Validate a representative complete link and retain its host, route, module identity and evidence for production release.
Review this routeBuyer scenarios
Buyer scenarios
Leaf-spine fabric
Short fabric links can use SR4, DR1 or cable assemblies depending on fibre, density and host support. Compare the complete installed path, not only module cost.
Campus or metro backbone
CWDM4, LR4 or ER4 selection depends on route loss, connector count, receive-power boundary and restoration plan. Validate the named route rather than the nominal distance.
4×25G breakout
Breakout approval includes the parent QSFP28 port, lane assignment, cable polarity, each SFP28 peer and the operational recovery method. One passing child lane is not enough.
Controlled workflow
Controlled workflow
- 01 · Define both endpoints
Record each host, hardware/software release, port mode, peer and operational role. Do not approve from one endpoint only.
- 02 · Engineer the physical path
Confirm fibre type and count, connector, polarity where relevant, route loss, reach, patching and environmental boundary.
- 03 · Select and identify
Choose the 100G QSFP28 variant, coding and management identity against the same controlled requirement and record any proposed deviation.
- 04 · Validate the link
Test the representative endpoints, physical path, operational states and recovery actions. Record failures and limitations as well as passing results.
- 05 · Release and preserve
Connect the approved link, module identity, source, labels, evidence and change triggers to the order and repeat reference.
Evidence and release control
Evidence and release control
Link specification
Both endpoints, port states, fibre path, connector, reach, loss and accepted optical architecture are recorded together.
Module identity
Part, source, coding or management data, label and sample identity define the approved unit.
Operational result
The log records the named host/port, method, diagnostics, errors, FEC or lane state, power and thermal observations relevant to acceptance.
Lot and change control
Released quantity and lot/serial identity connect delivery to the approved source; material changes carry notice and a revalidation decision.
Commercial planning
Commercial planning
Price comparison begins only after optical architecture, connector, host coding, evidence and delivery scope are aligned. Two modules with the same speed can carry different components, power, fibre and validation work, so their unit prices may not represent the same deliverable.
MOQ and lead time are configuration-specific. Common variants, special wavelengths, industrial grades and project coding can follow different component and production schedules. Show timing by line and separate sample, buyer approval, production, inspection and transport.
For mixed-variant orders, identify which line controls consolidated shipment and whether partial release is acceptable. A large total quantity does not automatically remove MOQ or timing constraints from a specialised low-volume line.
The quotation should state currency, Incoterm, payment, sample cost, quantity, allowed alternatives, evidence, inspection responsibility, warranty/RMA path and change-notice rule. Unknowns remain open rather than becoming silent assumptions.
When an endpoint, port mode, fibre path, source, firmware/management identity or deployment wave changes, review only the affected decision rows but do not carry the earlier approval forward automatically.
Procurement questions
Procurement questions
What information is required for a 100G QSFP28 quote?
Provide both endpoints, software and port state, reference or preferred variant, fibre, connector, reach or route loss, quantity, destination, target date and required validation evidence for the 100G QSFP28 link.
Does the longest reach provide the safest choice?
No. Excess transmit power, receiver range, host power/thermal limits, FEC, connector and fibre architecture can make a longer-reach module unsuitable. Use the actual link budget and host boundary.
When should a complete-link sample be used?
Use it when the host, port mode, fibre architecture, peer, source, coding or variant is new, or when failure consequences justify validation. Agree the method before shipping the sample.
Can variants with the same speed be substituted?
Only after the connector, fibre, lane architecture, reach, optical budget, host/FEC behaviour and acceptance evidence are reviewed. Any allowed alternative must be named in writing.
Are availability and lead time fixed on the website?
No. The page describes the decision scope. Exact source, configuration, availability, MOQ, sample effort, lead time, evidence and warranty route are confirmed in the written quotation.
Build a comparable RFQ
Build a comparable RFQ
Send both 100G endpoints, port/FEC mode, fibre architecture, connector, route loss, reach, variant preference, quantity and acceptance evidence.
NEXT STEP
Have a part number or project list?
Send the technical requirement for a structured compatibility and supply review.
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