40G QSFP+ Optical Transceivers SR4 / LR4 / PSM4 / ER4 — Product view 1
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40G QSFP+ Optical Transceivers SR4 / LR4 / PSM4 / ER4 — In a host switch 2
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40G QSFP+ Optical Transceivers SR4 / LR4 / PSM4 / ER4 — Application view 3
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Product images are illustrative renders for marketing reference; final delivered product is built to order per confirmed specifications.

40G QSFP+

40G QSFP+ Optical Transceivers SR4 / LR4 / PSM4 / ER4

40G QSFP+ Optical Transceivers | SR4 / LR4 / PSM4 / ER4 / ZR4 / BiDi, 100m to 100km

This 40 Gigabit QSFP+ optical transceiver family covers the full 40G range — SR4, LR4, PSM4, ER4, ZR4 and BiDi — from 100 m multimode to 100 km single-mode. Shown here in the LR4 duplex LC single-mode configuration (QSFP+-40G-LR4, 1310 nm, 10 km).

  • Complete 40G QSFP+ range: SR4 / LR4 / PSM4 / ER4 / ZR4 / BiDi
  • Reach from 100 m (SR4 MPO) to 100 km (ZR4)
  • Duplex LC (single-mode) or MPO (parallel) interfaces per variant
  • DDM monitoring for real-time module status
Data rate
40 Gbps
Wavelength
1310 nm (LR4) / 850 nm (SR4)
Reach
10 km (LR4); range 100 m - 100 km
Interface
Duplex LC (LR4/ER4/ZR4) / MPO (SR4/PSM4)
Fibre / media
Single-Mode / Multimode per variant
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  • Coded and confirmed for your host platform before production
  • Samples for evaluation in the intended port
  • Specification, test data and compliance paperwork with the order

Overview

What this module is for.

This 40 Gigabit QSFP+ optical transceiver family covers the full 40G range — SR4, LR4, PSM4, ER4, ZR4 and BiDi — from 100 m multimode to 100 km single-mode. Shown here in the LR4 duplex LC single-mode configuration (QSFP+-40G-LR4, 1310 nm, 10 km). All variants are hot-pluggable, DDM-capable, and built in a rugged QSFP+ heatsink housing for switch and data center IP networks. CE certified.

Review the exact module, host platform and complete link requirement before ordering. Our inquiry keeps the configuration, host details and quantity together in one record.

Check the optical budget for your path

Key selling points

  • Complete 40G QSFP+ range: SR4 / LR4 / PSM4 / ER4 / ZR4 / BiDi
  • Reach from 100 m (SR4 MPO) to 100 km (ZR4)
  • Duplex LC (single-mode) or MPO (parallel) interfaces per variant
  • DDM monitoring for real-time module status
  • Hot-pluggable QSFP+ with heatsink housing
  • CE certified; OEM and custom label supported

Technical detail

Listed specifications.

Fields published for initial selection. The production datasheet, coding and marking are confirmed with the quotation.

40G QSFP+ Optical Transceivers SR4 / LR4 / PSM4 / ER4 — listed specifications
ParameterListed value
Model NumberQSFP+-40G-LR4 (range: SR4/LR4/PSM4/ER4/ZR4/BiDi)
Data Rate40 Gbps
Wavelength1310 nm (LR4) / 850 nm (SR4)
Transmission Distance10 km (LR4); range 100 m - 100 km
Connector TypeDuplex LC (LR4/ER4/ZR4) / MPO (SR4/PSM4)
Fiber TypeSingle-Mode / Multimode per variant
Form FactorQSFP+, Hot-Pluggable
Digital DiagnosticsDDM supported
Operating Temperature0 ~ 70 °C
ApplicationSwitch, Data Center, IP Network
CertificationCE
Warranty12 Months

Technical drawings

Dimensions, structure and interfaces.

Supplier drawings for this product family. Click any drawing to enlarge it — the callouts are readable at full size.

Drawing 1 of 4 — click to enlarge
Drawing 2 of 4 — click to enlarge
Drawing 3 of 4 — click to enlarge
Drawing 4 of 4 — click to enlarge

Drawings are illustrative. Confirm mechanical dimensions and interface details against the production datasheet before design-in.

Build quality

Details that decide reliability.

One QSFP+ family covering every 40G distance requirement

Duplex LC or MPO interfaces to match plant and topology

Real-time DDM monitoring of module status

Rugged metal housing with heatsink for thermal stability

Where it is used

Typical applications.

  • Data center 40G switching across all reach tiers
  • Metro, long-haul and DCI single-mode links
  • High-density parallel-optics fabrics (SR4/PSM4)
  • IP network aggregation and backbone

Application notes describe common deployments for this product type. Confirm the design of your own link with the responsible engineering team.

Application concepts
Network equipment in a data centre aisle

OEM / ODM

Customization options.

  • Any variant supplied: SR4 / LR4 / PSM4 / ER4 / ZR4 / BiDi
  • OEM and custom label / coding supported
  • Compatible coding for major switch brands on request

Availability, minimum quantity and lead time for customized configurations are confirmed in the quotation.

Discuss a custom configuration
Optical module coding and test

Ordering

What is confirmed, and what we need from you.

Listed ordering information

Model
specify variant and reach (SR4/LR4/PSM4/ER4/ZR4/BiDi, 100 m-100 km)
Note
MOQ, lead time, and custom coding available on request

Include this in your inquiry

  • Product reference and required quantity
  • Host brand, model, port and software version
  • Fibre or cable type, connector and installed reach
  • Operating environment and temperature grade
  • Destination, sample needs and requested schedule

MOQ, lead time, warranty and applicable documents are confirmed in the quotation.

FAQ

Questions about this model.

What link distance is listed for the 40G QSFP+ Optical Transceivers SR4 / LR4 / PSM4 / ER4?

The listed reach is 10 km (LR4); range 100 m - 100 km. Actual distance depends on the installed fibre loss, the number of connectors and splices and the receiver sensitivity at both ends, so confirm the optical budget for your own path before ordering. Our link budget calculator works through the arithmetic in a minute.

Which wavelength does this module use?

It is listed at 1310 nm (LR4) / 850 nm (SR4). Single-fibre BiDi modules must be ordered as matched A/B pairs so the transmit wavelength at one end matches the receive wavelength at the other. Ordering two of the same end will not link.

What connector and fibre does it need?

The listed interface is Duplex LC (LR4/ER4/ZR4) / MPO (SR4/PSM4) on Single-Mode / Multimode per variant. Check that your patch cords, panel adapters and polarity match before installation.

Is an industrial temperature version available?

The listed operating temperature is 0 ~ 70 °C. Commercial (0~70°C) and industrial (-40~85°C) grades can be quoted; state the installed environment in your inquiry so the right grade is offered.

Can it be coded for my switch?

Yes. Send the host manufacturer, the exact model and the software version with your inquiry. Coding is confirmed per platform before production — a connector that fits does not by itself prove the host will accept the module.

Can I evaluate a sample first?

Include the required quantity, host platform and destination in your inquiry. Sample availability, charges and lead time are confirmed in the quotation, and we recommend testing in the intended port before a bulk order.

More in the procurement FAQ.

Related

Other models in this family.

All 40G QSFP+

Next step

Confirm this configuration with us.

Send the host platform, the installed link and the quantity. We will confirm coding, reach and lead time in the quotation.

Request a quotation