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Home / Products / Transceivers / 100G/200G Transceivers / 100G QSFP28 / 39587

Cisco QSFP-100G-LR4-S Compatible 100GBASE-LR4 QSFP28 1310nm 10km LC Duplex SMF DDM Optical Transceiver Module

Product No :39587
56 Reviews
6.6K Solds
US$ 199.90  US$ 299.00
Compatible
Transceivers type
1098 in real-time stock, 08Jul, 2025

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Add to Cart Bulk Order Quotes 
1. Rate: 100G; Connector: LC; with DDM
2. DFB+PIN; Low Power Consumption ≤3.5W
3. Applied in Campus Network, Data Center and Enterprise Core Layer
4. Compatible with 200+ Vendors
5. Hot Pluggable QSFP28 MSA Compliant
See more

Specifications

Cisco QSFP-100G-LR4-S Compatible 100GBASE-LR4 QSFP28 Optical Transceiver Module (SMF, 1310nm, 10km, LC, DDM)

 

The Cisco QSFP-100G-LR4-S compatible optical transceiver module with duplex LC connectors reaches a link up to 10km over OS2 single-mode fiber (SMF). The Cisco QSFP-100G-LR4-S compatible module is verified to interoperate with original Cisco switches, including the Catalyst 9300/9400/9500/9600 series and Nexus 3000/9300/9500 series switches. QSFPTEK manufactured 100GBASE-LR4 QSFP28 transceiver module is compliant with IEEE 802.3ba 100GBASE-LR4, QSFP28 MSA standard. Besides, DDM (digital diagnostics monitoring) function is supported on the 100G fiber optic transceiver to achieve real-time operating parameters monitoring. With these features, this 100G QSFP28 transceiver is widely applied in 100G telecom connections, data centers, high-performance computing networks, enterprise core and distribution layers, campus networks, etc.     

        

Part Number:

QT-QSFP28-LR4

Vendor Name:

QSFPTEK

Form Factor:

QSFP28

Data Rate:

100Gbps

Wavelength:

1295~1310nm

Distance:

10km

Connector:

Duplex LC

Cable Type:

OS2 SMF

Transmitter:

4x LAN WDM DML (DFB)

Receiver Type:

PIN

TX Power:

-4.3 to +4.5dBm

Receiver Sensitivity:

<-10.6dBm

Power Consumption:

≤4W

Modulation Format:

NRZ

DDM:

Support

Bit Error Ratio (BER):

1.00E-12

Protocols: 

IEEE 802.3ba 100GBASE-LR4, IEEE 802.3bm, QSFP28 MSA, SFF-8665, SFF-8636

Warranty:

5 Years
Quality Testing Program
Optical Transceivers Testing

Take a look at our test program to get the reliable and high-performance optical transceivers.

Quality Certifications

Features

  • 1. High Reliablility and Best Price
    Proudly self-producing and rigorous testing, QSFPTEK is dedicated to delivering cost-effective products with high reliability and performance at trade price.
  • 2. Wide Application Scenarios
    Fully compatible with almost all Cisco devices. Ideal for 100G telecom connections, data center, high-performance computing networks, enterprise core and distribution layers etc.
  • 3. Protocols
    Compliant with IEEE 802.3ba 100GBASE-LR4, IEEE 802.3bm, QSFP28 MSA, SFF-8665, SFF-8636.
  • 4. Quality Certifications
    Backed by CE, FCC, ROSH, ISO9001.

Applications

Scenario 1: 100G Switch to 100G Switch Direct Connectivity

QT-QSFP28-LR4 Scenario 1: 100G Switch to 100G Switch Direct Connectivity  

 

Scenario 2: 100G Switch to 100G NIC Direct Connectivity

QT-QSFP28-LR4 Scenario 2: 100G Switch to 100G NIC Direct Connectivity  

Product details

Various Switch Tests

 

Every module is quality tested for compatibility in the multi-brand switches environment, which guarantees flawless operations.

 

 

 

Tested in The Host Device to Prove Interoperability

 

Every unit sold undergoes rigorous quality testing, to ensure compatibility in the target switch environment, guaranteeing perfect operation.

 

QSFPTEK Test Rack

 

 

Comprehensive Testing

 

Every module is qualified through rigorous procedures and advanced equipment to ensure high-quality and reliable optical devices for you.

 

QSFPTEK Test Devices

 

 

100G QSFP28 Model Contrast Table

        

Part Number

QT-QSFP28-SR4

QT-QSFP28-PSM4

QT-QSFP28-IR4

QT-QSFP28-LR4

QT-QSFP28-CWDM-LR4

QT-QSFP28-ER4 (Rx SOA)

QT-QSFP28-ZR4

DWDM-QSFP28-ZR-XX

Image

Wavelength

850nm

1310nm

1271~1331nm

1310nm

1271~1331nm

1310nm

1310nm

DWDM CH13~60

Max Distance

100m

500m

2km

10km

10km

40km

80km

80km

Cable Type

OM3/OM4 MMF

OS2 SMF

OS2 SMF

OS2 SMF

OS2 SMF

OS2 SMF

OS2 SMF

OS2 SMF

Connector

MPO/MTP-12

MPO/MTP-12

LC Duplex

LC Duplex

LC Duplex

LC Duplex

LC Duplex

CS Duplex

Tx Power(dBm)

-8.4~+2.4

-9.4~+2

-6.5~+2.5

-4.3~+4.5

-6.5~+2.5

-2.9~+4.5

+2~+7

-1~+4

Rx Sensitivity(dBm)

-10.3

-12.66

-11.5

-10.6

-11.5

-20.9

-27

-12.5

Max Power Consumption

3.5W

3.5W

3.5W

4W

3.5W

4.5W

5.5W

5W

Source

VCSEL+PIN

DFB+PIN

CWDM DFB+ PIN

EML+PIN

CWDM DFB +PIN

4x EML+SOA+PIN

EML+SOA+PIN

EML+APD

Operating Temperature

0~70°C

0~70°C

0~70°C

0~70°C

-40~85°C (Available)

0~70°C

0~70°C

-20~85°C (Available)

0~70°C

-40~85°C (Available)

0~70°C

 

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  • Steven United States of America
    2025-07-04

    QSFPTEK delivers excellent 100G LR4 modules with outstanding performance and reliability. Their team is knowledgeable and always ready to assist with any networking questions, making the purchasing process smooth and worry-free.

    Transceivers typeQSFP-100G-LR4-S

    CompatibleCisco

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  • Bo Ki Australia
    2025-04-30

    I’ve lost count of how many 100G LR4 modules I’ve purchased from QSFPTEK. One thing I know for sure—you won’t regret choosing them. Reliable products and consistent service every time

    Transceivers typeQSFP-100G-LR4-S

    CompatibleCisco

    Verified Purchase

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    0

  • Paddy Joan United States of America
    2025-02-28

    The delivery time of the package was 2 days longer than expected. The outer packaging box has slight compression marks during transportation, but the module itself is not damaged. For daily use, the cost-effectiveness is acceptable. I hope QSFPTEK can strengthen packaging in the future to avoid damage from courier and logistics companies.

    Transceivers typeQSFP-100G-LR4-S

    CompatibleCisco

    Verified Purchase

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  • Lance A United States of America
    2025-01-15

    I found QSFPTEK after someone's recommendation, and the product quality is very good. I use it in a data center, and I need a large quantity of stable quality products, so the quality is very important to me. In this point QSFPTEK performance is very good.

    Transceivers typeQSFP-100G-LR4-S

    CompatibleCisco

    Verified Purchase

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  • Lamp Justin United States of America
    2025-01-08

    I installed the QSFP28 LR4 modules on my switches, and they work well with my network, delivering faster transmission speeds.

    Transceivers typeQSFP-100G-LR4-S

    CompatibleCisco

    Verified Purchase

    Helpful

    0

  • Booty P. United States of America
    2024-12-30

    The sluggish market has affected our budget this quarter, and I am very happy to see that their modules are very cost-effective. I bought 1G, 10G, 40G and 100G modules, which are only a fraction of the price compared to OEM. I have been running them on switches for 3 weeks, and I have not seen any problems except that the 10G electrical port is a little hot (but this is a common problem with this product).

    Transceivers typeQSFP-100G-LR4-S

    CompatibleCisco

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  • Hardy United States of America
    2024-12-20

    We are a small network service provider, so we need a lot of network equipment, as well as need to have a low enough price, QSFPTEK's products have enough price/performance ratio, and for us, also can be very perfect to ensure the quality.

    Transceivers typeQSFP-100G-LR4-S

    CompatibleCisco

    Verified Purchase

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  • Rory United States of America
    2024-12-13

    QSFPTEK's 100G LR4 module is an ideal choice for users, it is plug and play, stable transmission, excellent performance. The most important thing is its price. After checking multiple websites, I decided to choose them, which is undoubtedly a good shopping experience.

    Transceivers typeQSFP-100G-LR4-S

    CompatibleCisco

    Verified Purchase

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    0

  • Oleksander L. United States of America
    2024-12-06

    Wored on Cisco C9500-32C with no issue. A great value at such a price.

    Transceivers typeQSFP-100G-LR4-S

    CompatibleCisco

    Verified Purchase

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    0

  • Ryan Morris United States of America
    2024-11-08

    Purchased this 10km QSFP28 LR4 module, 10pcs, each one is tested, for our company, save our testing process, QSFPTEK's engineers will also simulate our production environment in the lab, the module will be tested in detail.

    Transceivers typeQSFP-100G-LR4-S

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Video

Resources

  • PDF Document
    QT-QSFP28-LR4 Datasheet.pdf
  • PDF Document
    Transceiver Module User Guide.pdf
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Cisco QSFP-100G-LR4-S Compatible 100GBASE-LR4 QSFP28 1310nm 10km LC Duplex SMF DDM Optical Transceiver Module

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Transceivers type QSFP-100G-LR4-S

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Mark

2023-12-15
This product works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent value fo ct works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent valur money!

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Cisco QSFP-100G-LR4-S Compatible 100GBASE-LR4 QSFP28 1310nm 10km LC Duplex SMF DDM Optical Transceiver Module
US$ 199.90
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Cisco QSFP-100G-LR4-S Compatible 100GBASE-LR4 QSFP28 1310nm 10km LC Duplex SMF DDM Optical Transceiver Module

Compatible Cisco

Transceivers type QSFP-100G-LR4-S

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