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Home/ Transceivers / 16G/25G/40G Transceivers / 40G QSFP+

Cisco QSFP-40G-ER4 Compatible 40GBASE-ER4 QSFP+ 1310nm 40km Optical Transceiver Module

Product No :74708
US$ 379.00  US$ 499.00
Compatible
Transceivers type
500 in stock
Free Shipping over US$ 84.9 US/EU Warehouses in stock.
Bulk Order Quotes Shop Online 
1. Rate: 40G; Connector: Duplex lC; with DDM
2. DFB+PIN; Low Power Consumption <3.5W
3. Applied in Campus Network and Data Center
4. Fully Compatible with 100+ Vendors
5. QSFP+ MSA Compliant
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Specifications

Cisco QSFP-40G-ER4 Compatible 40GBASE-ER4 QSFP+ Optical Transceiver Module (SMF, 1310nm, 40km, LC, DDM)

 

The Cisco QSFP-40G-ER4 compatible 40G QSFP+ transceiver module is equipped with LC duplex connectors, reaching a link up to 10km over OS2 single-mode fiber (SMF). This 40G optical transceiver comes with a bidirectional 4-channel QSFP+ connector, enabling a total of 40 Gbps bandwidth by each channel carrying a 10 Gbps data rate. DOM/DDM (digital diagnostics monitoring) function is supported on the 40G fiber optic transceiver to achieve real-time operating parameters monitoring.

 

QSFPTEK manufactured 40GBASE-ER4 QSFP+ module is compliant with QSFP+ MSA and IEEE 802.3ba 40GBASE-ER4 specifications. Besides, the quad small form-factor pluggable (QSFP) ER4 optic has been tested on host devices to ensure full compatibility with Cisco 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 Cisco QSFP-40G-ER4 QSFP+ 40G transceiver at an affordable price, providing a cost-effective compatible solution for high-performance 40G connectivity.

 

ER4 40G QSFP optics cater to 40 Gigabit Ethernet (40GbE) optical fiber connections, ideal for high-performance and long-distance applications in long-haul networks, campus networks, metro networks, etc.

 

Model Name QSFP-40G-ER4 Vendor Name QSFPTEK
Form Factor QSFP+ Data Rate 40 Gbps
Wavelength 1310nm Distance 40km@OS2
Connector LC Duplex Cable Type OS2 SMF
Transmitter Type DFB Receiver Type PIN
TX Power -2.7~4.5dBm Receiver Sensitivity <-19dBm
Power Consumption <3.5W 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 3 Years
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 long-haul networks, campus networks, metro networks.
  • 3. Protocols
    Compliant with IEEE 802.3ba, QSFP+ MSA, SFF-8436, SFF-8636.
  • 4. Quality Certifications
    Backed by CE, FCC, ROSH, ISO9001.

Applications

Point-to-Point 40GBASE-ER4 Connectivity 


Related Products:

• LC UPC to LC UPC Duplex OS2 Single-mode Fiber Optic Patch Cable (SMF)

 

The 40G QSFP ER4 Optical Module Connectivity Testing on Switches

 

Product details

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.

 

 

 

Various Switch Tests

 

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+-SH4

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

more+
  • What is the difference between Cisco qspf-40g-lr4 and qsfp-40g-lr4-s?
    They are actually the same one.
  • Does the qsfp-40g-sr4 transceivers allow 4x 10g connectivity?
    Yes. The connectivity is achieved by using an 8-fibers OM4 MTP-LC Type B break-out cable, which connects the qfp-40g-sr4 transceivers to four sfp-10g-sr optical interfaces.
  • Can this module work at 80°C?
    No, it can't. The working temperature range is 0 to 70°C.

Customer Reviews

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  • Verne Stone United States of America
    2023-02-03

    The salesman who communicated with me was great, and told me a lot of professional knowledge of optical communication. I am a beginner, and this helped me a lot.

    Transceivers typeQSFP-40G-SR4

    CompatibleCisco

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  • Bruno Hosea United States of America
    2023-01-30

    Although it is a small brand that I have never heard of, it is of high quality and low price, and it feels good to use after receiving the goods. I am also very satisfied with the sales replies. I am willing to give full marks!

    Transceivers typeJG325A

    CompatibleH3C

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  • Alex86 United States of America
    2023-01-29

    This is the third time I buy from QT. This time I bought a pair of lr4 40gig for the new project. My sale rep Wendy is always kind to help me out of any puzzles. Recommended, nice shopping experience!

    Transceivers typeQSFP-40G-SR4

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  • Jose Caceres United States of America
    2023-01-07

    Bought 2 of these to use with my company‘s Cisco switch and they have been working great!

    Transceivers typeQSFP-40G-LR4

    CompatibleCisco

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  • Rich United States of America
    2022-12-30

    Great price for a 40g qsfp module. Works just fine in a brocade switch. I'm getting a steady 40 Gbps link.

    Transceivers type40G-QSFP-SR4

    CompatibleBrocade

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  • Elroy Cowper United States of America
    2022-12-28

    It's the first time to post a review, the quality of the module is very good, there is no problem in using it, Nice!!!

    Transceivers typeQSFP-40G-SR4

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  • Paul Jinkerson United States of America
    2022-12-23

    Great value for the cost came recommended by a youtube channel. Items work fine on my Arista switch. I highly recommend this.

    Transceivers typeQSFPP-40GBASE-LR4

    CompatibleArista

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  • LarryZ United States of America
    2022-12-15

    These seem to work well. I have two 48 port switches stacked together using these and I have had no issues over the last six months since I installed it.

    Transceivers typeQSFPP-40GBASE-LR4

    CompatibleJuniper

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  • Vidman United States of America
    2022-12-10

    I bought a couple of these modules, connecting two Cisco switches, and they work with no issues so far. Would buy it again if I need more.

    Transceivers typeQSFP-40G-LR4

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  • Luther Snow United States of America
    2022-12-07

    The rock solid module looks as advertised. I have tried it on my exchange, and I can give you a reference, it is compatible with my Cisco N3K-C3232C, and the recognition speed is very fast.

    Transceivers typeQSFP-40G-SR4

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Datasheet

  • QT-QSFP+-ER4.pdf

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Cisco QSFP-40G-ER4 Compatible 40GBASE-ER4 QSFP+ 1310nm 40km Optical Transceiver Module

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