Skip to Content
Part Number: EN-QSFP28-SR4
  • Compatibility:
Price
$ USD 60.00 $ USD 60.00
$ USD 60.00

Terms and Conditions
 30-Day Returns | 30-Day Exchange *
Free Shipping over US$ 75
Shipping: 2-3 Business Days
Note: Final product appearance may vary slightly from the images shown.
Datasheet/Documents

Specifications

100G Transceivers for High-Performance Networks

Reliable, compatible, and deployment-ready 100G optical transceivers and direct attach solutions designed for data centers, enterprises, telecom networks, cloud environments, and AI-driven infrastructure. E.C.I. NETWORKS delivers a broad portfolio of 100G connectivity solutions engineered for performance, interoperability, and fast deployment across open and OEM networking environments.

Key Features
  • Multi-vendor compatibility with programmable EEPROM coding
  • Fully compatible with SONiC and open networking environments
  • Support for breakout (100G → 4×25G)
  • Low power consumption for high-density deployments
  • Available in optical, DAC, AOC, and ACC formats
  • Form Factors: QSFP28, SFP-DD
  • Media: MMF & SMF | Connectors: MPO-12, LC
  • Reach: 100m (SR4), 2km (CWDM4/FR), 10km (LR), extended (ER4/ZR4)
  • Wavelengths: 850nm, 1310nm, CWDM
  • Temperature: Commercial & Industrial options

100G QSFP28 SR4 Optical Transceiver

The 100G QSFP28 SR4 is a multimode parallel optic delivering 100Gbps over MPO-12 fiber up to 100m (OM4), supporting breakout to 4×25G for high-density data center deployments.

ParameterSpecificationParameterSpecification
Form FactorQSFP28Data Rate100Gbps (4 × 25Gbps NRZ)
Standard ComplianceIEEE 802.3bm 100GBASE-SR4ModulationNRZ
Wavelength850nmConnectorMPO-12 (Female)
Fiber TypeMultimode Fiber (MMF, OM3/OM4)Max Reach70m (OM3), 100m (OM4)
Transmit Power-8.4 dBm to +2.4 dBm (per lane)Receiver Sensitivity≤ -10.3 dBm (per lane)
Optical Budget~1.9 dBLane Configuration4 Tx / 4 Rx lanes
Host InterfaceQSFP28 MSA, SFF-8636FEC RequirementRS-FEC (per host platform)
Power Supply3.3VPower Consumption≤ 3.5W
Digital DiagnosticsDOM/DDM SupportedOperating Temperature0°C to 70°C (Commercial)
Storage Temperature-40°C to 85°CCable TypeParallel MPO (Type B recommended)

Connectivity examples


Switch-to-switch (leaf-spine) 100G SR4 example

Switch-to-switch (leaf-spine)

This figure shows a direct connectivity between two switches using 100GBASE-SR4 QSFP28 transceivers connected by 1x multi-mode MTP to MTP patch cable.

Switch-to-server  100G SR4 example

Switch-to-server 

This figure shows a direct connectivity between two switches using 100GBASE-SR4 QSFP28 transceivers connected by 1x multi-mode MTP to MTP patch cable.

diagram shows a 100G to 4x 25G breakout connection

Switch-to-server (via breakout)

This diagram shows a 100G to 4x 25G breakout connection using an MTP to 4x Duplex LC connectors cable.

Selection Guide

Which 100G Transceiver Should I Choose? Selecting the right 100G transceiver depends on distance, fiber type, and infrastructure. Use the guide below to quickly identify the best option for your deployment. 

Selection CriteriaOptionRecommended TransceiversFiber / ConnectorTypical Use Case
Distance (Reach)≤ 100mSR4, SR BiDiMMF (MPO / LC)Intra-rack, leaf-spine


≤ 500mDR, PSM4SMF (LC / MPO)Data center interconnect


≤ 2kmFR, CWDM4SMF (LC)DCI / aggregation


10km – 40kmLR4, ER4SMF (LC)Campus / metro


≥ 80kmZR4SMF (LC)Long-haul / DCI
Fiber TypeMultimode (OM3/OM4/OM5)SR4, SR BiDiMPO / LCShort-range DC


Single-mode (OS2)DR, FR, CWDM4, LR4, ER4, ZR4LCMedium to long reach


Parallel SMFPSM4, PLR4MPOHyperscale / legacy MPO
Connector TypeMPO / MTPSR4, PSM4, PLR4Multi-fiberHigh-density links


Duplex LCCWDM4, LR4, DR, FR, ER4, ZR42 fibersStandard deployments


LC (BiDi MMF)SR BiDi2 fibersFiber reuse / migration
Optical TechnologyNRZ (4×25G)SR4, PSM4, LR4, CWDM4MPO / LCMature, widely deployed


PAM4 (Single Lambda)DR, FR, LR (new gen)LCAI / cloud / future-ready
Breakout Capability100G → 4×25GSR4, PSM4, DAC, AOCMPO / breakout cableServer fan-out
Power & Thermal2.5W – 3.5WSR4High-density DC


3.5W – 4.5WCWDM4, LR4Standard SMF


4.5W – 6WER4, ZR4Long distance

Applications

Deployment scenarios for this module

Data Center & Enterprise Networks

High-speed connectivity for leaf-spine architectures, server aggregation, and backbone upgrades supporting growing east-west traffic.

Telecom & Service Provider Transport

Robust optical connectivity for aggregation, metro, and long-haul transport across carrier and service provider networks.

Cloud, AI & Hyperscale Infrastructure

Reliable, low-latency links designed for high-performance computing, AI workloads, and scalable cloud environments.

Quality Certification

At E.C.I. NETWORKS, all our optical transceivers are CE, FCC, RoHS, and FDA laser compliant, meeting global standards for safety, environmental responsibility, and electromagnetic performance.

Key Certifications
CE
EMC Directive 2014/30/EU

Emissions and immunity compliance for IT and multimedia equipment.

FCC
Part 15, Class B

Verified as unintentional radiators with SDoC available.

IEC
62368-1 and 60825-1

Safety-certified and laser-classified (Class 1).

FDA
21 CFR 1040.10 / 1040.11

U.S. laser safety regulations.

RoHS
RoHS and REACH Compliant

Free from hazardous substances and environmentally responsible.

UL
UL / CB / cTUVus

Available on selected models per regional or customer needs.

Compliance Standards

These certifications ensure our transceivers are safe, interoperable, and built to meet the highest global compliance standards across data center, telecom, and enterprise environments.

Conflict-Free Sourcing

We comply with the SEC Conflict Minerals Rule, supporting ethical sourcing practices for minerals like tantalum, tin, tungsten, and gold.

Certification Logos

Performance & Reliability

We ensure our optical transceivers deliver exceptional performance and long-term reliability through rigorous testing on industry-leading equipment.

Power & Wavelength Testing

We verify signal strength and wavelength stability to ensure seamless decoding and consistent transmission across the optical path.

Traffic Testing

All transceivers undergo bit error rate (BER) and packet loss testing to guarantee zero data loss and full compliance with Ethernet and Fiber Channel standards.

Optical Performance Validation

Our modules are evaluated for signal integrity, eye diagram clarity, and BER, ensuring stable, high-quality optical transmission in all operating conditions.

End Face Inspection

Each module's fiber interface is inspected and cleaned to eliminate contamination and physical defects - a critical step for optimal signal performance and long service life.

Warranty & Compatibility

Optical Transceivers (1G–400G): Lifetime (5 Years)

Zero Risk

Using our transceivers does not void the warranty of your network equipment. Global OEM policies and consumer protection laws (Magnuson-Moss Warranty Act) prevent manufacturers from denying support based solely on the use of third-party components.

Guaranteed Compatibility

Our modules are coded and tested for seamless operation across major platforms including Cisco, Arista, Juniper, HPE, Nvidia, Huawei, and more. This rigorous validation ensures plug-and-play reliability and full compliance with OEM specifications.

Technical Support & RMA

Have an issue? We provide full technical support and hassle-free RMA on all eligible transceivers. Our team is ready to help with any technical questions about compatibility or deployment. contact our technical support support@ecin.ca

Q&A

Commonly asked questions

No. Under the Magnuson-Moss Warranty Act and similar global consumer protection laws, OEMs cannot void your equipment warranty simply because you use a third-party transceiver. Your equipment warranty remains intact.

Yes. Our QSFP28 modules can be coded for major OEM platforms (Cisco, Juniper, Arista, Nvidia, etc.) and support open networking environments including SONiC.

A compatible generic version can be provided and coded before delivery.

Common types include SR4 (MMF, short reach), PSM4 (parallel SMF), CWDM4 (SMF up to ~2km), LR4 (SMF up to ~10km), and extended reach options like ER4. Each is designed for different distances and fiber types.

Choose based on distance and fiber: SR4 for short-range multimode (data center), CWDM4 for cost-effective singlemode up to ~2km, and LR4 for longer distances up to ~10km.

Yes. Our modules are coded for the specific platform you select at purchase. They are recognized natively by the switch OS without any additional configuration or commands.

No. Our transceivers meet the same IEEE and MSA specifications as OEM modules. They deliver identical optical performance, data rates, and reach characteristics.

Yes. We offer full support, RMA service, and warranty coverage on all modules.

Resources

Downloads and documentation

Certifications and Conflict Materials Statement

Product Datasheet

Product Quick Start Guide

Unveil our latest updates—you might find exactly what you need!

Your Dynamic Snippet will be displayed here... This message is displayed because you did not provide enough options to retrieve its content.
Website upgrade in progress — some products or sections may be temporarily unavailable. Contact sales@ecin.ca for assistance. Learn More