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Home / Products / Transceivers / 25G/40G Transceivers / 40G QSFP+ / 11673

Juniper Networks QSFPP-40GBASE-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m DOM MTP/MPO MMF Optical Transceiver Module

Product No :11673
US$ 25.00  US$ 33.90
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Transceivers type
1377 in real-time stock, 19Jun, 2025

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Add to Cart Bulk Order Quotes 
1. MTP/MPO-12 Male Connector
2. Low Power Consumption <0.7W
3. For Data Center, Campus Network, 40G to 10G Break-out
4. Compatible with 100+ Vendors
5. Hot Pluggable SFF 8436 MSA Compliant
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Specifications

Juniper Networks QSFPP-40GBASE-SR4 Compatible 40GBASE-SR4 QSFP+ Optical Transceiver Module (MMF, 850nm, 150m, MTP/MPO, DDM)

 

The Juniper Networks QSFPP-40GBASE-SR4 compatible 40G QSFP+ transceiver module is equipped with an MTP-12 male fiber connector, reaching a link up to 150m over laser-optimized OM4 multimode fiber (100m over OM3 MMF). It is verified to interoperate with original Juniper switches, including the EX4400, EX4600, QFX5200, QFX5700 series, etc. It also supports breakout to 4x 10GBASE-SR SFP+ via MTP/MPO-8 to 4x LC duplex OM3/OM4 breakout cables. This 40G optical transceiver comes with a bidirectional 4-channel QSFP+ connector, enabling a total 40Gbps bandwidth by each channel carrying a 10 Gbps data rate. DOM/DDM (digital diagnostics monitoring) function is supported on the QSFP 40G fiber transceiver to achieve real-time operating parameters monitoring.

 

QSFPTEK manufactured 40GBASE-SR4 QSFP+ module is compliant with QSFP+ MSA (SFF-8436) and IEEE 802.3ba 40GBASE-SR4 specifications. Besides, the quad small form-factor pluggable (QSFP) SR4 optic has been tested on host devices to ensure full compatibility with Juniper equipment, such as data center switches, enterprise routers, and server network interface cards (NICs). The third-party 40G SFP module is an ideal substitute to the Juniper Networks QSFPP-40GBASE-SR4 QSFP+ 40G transceiver at an affordable price, providing a cost-effective compatible solution for high-performance 40G connectivity.

Model Name QSFPP-40GBASE-SR4 Vendor Name QSFPTEK
Form Factor QSFP+ Data Rate 40 Gbps
Wavelength 850nm Distance 150m@OM4/100m@OM3
Connector MTP/MTO-12 Male Cable Type OM4/OM3 MMF
Transmitter Type VCSEL Receiver Type PIN
TX Power -7~1dBm Receiver Sensitivity <-9.5dBm
Power Consumption <0.7W Modulation Format NRZ
DDM Support Bit Error Ratio (BER) 1E-12
Protocols IEEE 802.3ba, QSFP+ MSA, SFF-8436, SFF-8636, Infiniband 40G QDR 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 Juniper devices. Ideal for data center, campus network, metro network, etc.
  • 3. Protocols
    Compliant with IEEE 802.3ba, QSFP+ MSA, SFF-8436, SFF-8636.
  • 4. Quality Certifications
    Backed by CE, FCC, ROSH, ISO9001.

Applications

Scenario 1: 40G to 40G Direct Connectivity

Related Products:

S7300-48X2Q4C, 48-Port Gigabit Ethernet L3 Campus SFP+ Switch, 48 x10GE SFP+, with 2 x40GE QSFP+ and 4 x100GE QSFP28 Uplinks, Support Stacking

MTP-12 (Female) to MTP-12 (Female) OM4 Trunk Cable, 12 Fibers, Type B, Plenum (LSZH)

 

    

Scenario 2: 40G to 10G Breakout Connectivity

Related Products:

S7300-48X2Q4C, 48-Port Gigabit Ethernet L3 Campus SFP+ Switch, 48 x10GE SFP+, with 2 x40GE QSFP+ and 4 x100GE QSFP28 Uplinks, Support Stacking

S5300-48T6X, 48-Port Gigabit Ethernet L3 Switch, 48 xGE RJ45, with 6 x10GE SFP+, Support Stacking

Cisco SFP-10GB-SR Compatible 10GBASE-SR SFP+ 850nm 300m DDM LC MMF Transceiver Module

MTP Female to 4 LC UPC Duplex 8 Fibers Type B Plenum (LSZH) OM4 50/125 Multimode Breakout Cable

      

  

Scenario 3: 40GBASE-SR4 Connectivity with NIC

Related Products:

S7300-48X2Q4C, 48-Port Gigabit Ethernet L3 Campus SFP+ Switch, 48 x10GE SFP+, with 2 x40GE QSFP+ and 4 x100GE QSFP28 Uplinks, Support Stacking

MTP-12 (Female) to MTP-12 (Female) OM4 Trunk Cable, 12 Fibers, Type B, Plenum (LSZH)

Intel X710-BM2 Network Interface Card, 10G 2 × SFP+ Port , PCIe 3.0 X 8, Half & Full Bracket

 

Product details

Seamlessly Achieve 10G to 40G Migration

  

Upgrade the Spine to 40G gear while maintaining the 10G Leaf architecture, achieving seamless 10G to 40G migration.

 

 

Various Switch Tests

 

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

 

transceiver compatibility tests

 

 

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.

 

 

 

Comprehensive Testing

 

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

 

 

 

40G QSFP+ Model Contrast Table

 

Part Number

QT-QSFP+-SR4

QT-QSFP+-IR4

QT-QSFP+-PSM4

QT-QSFP+-LR4

QT-QSFP+-LR4-20

QT-QSFP+-ER4

QT-QSFP+-ZR4

Image

Wavelength

850nm

CWDM

1310nm

CWDM

CWDM

CWDM

LWDM 1294~1310nm

Max Distance

150m

2km

10km

10km

20km

40km

80km

Cable Type

OM3/OM4 MMF

OS2 SMF

OS2 SMF

OS2 SMF

OS2 SMF

OS2 SMF

OS2 SMF

Connector

MPO/MTP-12

LC Duplex

MPO/MTP-12

LC Duplex

LC Duplex

LC Duplex

LC Duplex

Tx Power(dBm)

-7 ~ 1

-7 ~ 2.3

-6 ~ -1

-7 ~ 2.3

-4 ~ 2.3

-2.7 ~ 4.5

-2.7 ~ 4.5

Rx Sensitivity(dBm)

-9.5

-11.5

-14.4

-13.7

-11.5

-19

-28

Power Consumption

<0.7W

<2.5W

<2.5W

< 2.5W

<3.5W

<3.5W

<5W

Source

VCSEL + PIN

DFB + PIN

4xDFB + PIN

DFB + PIN

DFB + PIN

DFB + PIN

4xDFB + APD

Operating Temperature

0 to 70°C

0 to 70°C

0 to 70°C

0 to 70°C

0 to 70°C

0 to 70°C

0 to 70°C

Questions & Answers

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  • Paul United States of America
    2023-03-25

    I've been using this optical transceiver with my Juniper switch and have been very impressed with its speed and reliability. the price was very reasonable and the fast delivery also exceeded my expectations.it is a great choice for budget-conscious buyers. I think will support QT again as a loyal buyer.

    Transceivers typeQSFPP-40GBASE-SR4

    CompatibleJuniper

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  • John Smith Germany (+49)
    2023-03-17

    Der Artikel hat über 6 Monate hinweg einwandfrei in mehreren Standorten in Deutschland funktioniert.

    Transceivers typeQSFPP-40GBASE-SR4

    CompatibleJuniper

    Verified Purchase

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  • Darrell United States of America
    2023-03-13

    After testing for two months, we are able to give our active feedback with QSFPTEK, the QSFPP-40GBASE-SR4 demonstrated good compatibility and reliability, and three years warranty ensures excellent quality, if needed, I will choose QSFPTEK again.

    Transceivers typeQSFPP-40GBASE-SR4

    CompatibleJuniper

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  • Warren United States of America
    2023-03-13

    After testing for two months, we are able to give our active feedback with QSFPTEK, the QSFPP-40GBASE-SR4 demonstrated good compatibility and reliability, I think three years warranty ensures excellent quality, if needed, I will choose QSFPTEK again.

    Transceivers typeQSFPP-40GBASE-SR4

    CompatibleJuniper

    Verified Purchase

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  • Joseph United States of America
    2023-03-07

    I want an alternative supplier. This is the first time I bought from QSFPTEK, the part was delivered with the strict package, faster than expected. So far works perfectly, hope supports the quality warranty as they described.

    Transceivers typeQSFPP-40GBASE-SR4

    CompatibleJuniper

    Verified Purchase

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    0

  • Dale United States of America
    2023-03-07

    The product offered an outstanding value at an affordable price. Additionally, the shipping was exceptionally prompt. I am highly satisfied with my purchase and intend to order from this vendor again in the future. Once I received the transceivers, I immediately connected them to my Juniper QFX3500 with no difficulties whatsoever.

    Transceivers typeQSFPP-40GBASE-SR4

    CompatibleJuniper

    Verified Purchase

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  • Maureen United States of America
    2023-03-07

    I have previously bought transceivers from QSFPTEK, and now I can provide feedback on them. They are of good quality and can be compared to the original ones. In fact, QSFPTEK is highly recommended by service providers and has a strong reputation. The transceiver modules arrived promptly, and they worked flawlessly during the pre-deployment testing. We expect to complete the deployment by the end of this week, and I am confident that we will encounter no issues.

    Transceivers typeQSFPP-40GBASE-SR4

    CompatibleJuniper

    Verified Purchase

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  • Michael United States of America
    2023-02-20

    The installation was easy, and the transceiver worked flawlessly right out of the box. I tested it with various devices and found that the connectivity and speed were outstanding.

    Transceivers typeQSFPP-40GBASE-SR4

    CompatibleJuniper

    Verified Purchase

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  • Austin Skiles United States of America
    2022-11-30

    I bought 2 of these (Juniper compatible) to use with Juniper EX4600 switches. They maintain a 40Gb connection without issue. Manufacturing tolerances seem good. The modules aren't loose in the QSFP ports or difficult to insert.

    Transceivers typeQSFPP-40GBASE-SR4

    CompatibleJuniper

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  • Jason Lewis United States of America
    2022-11-10

    I consulted alternative replacement of QSFP+ modules for my juniper switch. Talia asked for the exact model to check compatibility for me. Responsible sale support!

    Transceivers typeQSFPP-40GBASE-SR4

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Resources

  • PDF Document
    QT-QSFP+-SR4 150M Datasheet.pdf
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Juniper Networks QSFPP-40GBASE-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m DOM MTP/MPO MMF Optical Transceiver Module

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Transceivers type QSFPP-40GBASE-SR4

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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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Juniper Networks QSFPP-40GBASE-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m DOM MTP/MPO MMF Optical Transceiver Module
US$ 25.00
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Juniper Networks QSFPP-40GBASE-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m DOM MTP/MPO MMF Optical Transceiver Module

Compatible Juniper

Transceivers type QSFPP-40GBASE-SR4

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