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

Cisco QSFP-LR4-40G-20 Compatible 40GBASE-LR4 QSFP+ 1310nm 20km DDM LC SMF Optical Transceiver Module

Product No :100023
US$ 169.00  US$ 279.00
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Transceivers type
200 in stock
Free Shipping over US$ 84.9 US/EU Warehouses in stock, Overnight Shipping
Bulk Order Quotes Shop Online 
1. < 3.5W Low Power Consumption.
2. Link Up to 20 km via Singlemode OS2.
2. LC Duplex Connector, DFP+PIN.
3. Fully Compatible with 100+ Vendors.
4. For Data Center and 40G Ethernet Applications.
5. Hot Pluggable QSFP+ MSA Compliant.
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Specifications

Cisco QSFP-LR4-40G-20 Compatible 40GBASE-LR4 QSFP+ Optical Transceiver Module (SMF, 1310nm, 20km, LC, DDM)

 

The Cisco QSFP-LR4-40G-20 compatible 40G QSFP+ LR4 transceiver module is equipped with LC duplex connectors, reaching a link up to 20km 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 QSFP 40G fiber optic transceiver to achieve real-time operating parameters monitoring.

 

QSFPTEK manufactured 40GBASE-LR4 QSFP+ module is compliant with QSFP+ MSA and 40GBASE-LR4 specifications. Besides, the QSFP LR4 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 QSFP-40GE-LR4 QSFP+ 40G transceiver at an affordable price, providing a cost-effective compatible solution for high-performance 40G connectivity.

 

LR4 40G QSFP optics cater to 40 Gigabit Ethernet (40GbE) optical fiber connections, ideal for high-performance and long-distance applications in the data center, enterprise core and distribution layers, campus networks, metro networks, etc.

 

Model Name QSFP-LR4-40G-20 Vendor Name QSFPTEK
Form Factor QSFP+ Data Rate 40 Gbps
Wavelength 1310nm Distance 20km@OS2
Connector LC Duplex Cable Type OS2 SMF
Transmitter Type DFB Receiver Type PIN
TX Power -4~2.3dBm Receiver Sensitivity <-11.5dBm
Power Consumption <3.5W Modulation Format NRZ
DDM Support Bit Error Ratio (BER) 1E-12
Protocols QSFP+ MSA, SFF-8436, 40G Ethernet 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 a trade price.
  • 2. Wide Application Scenarios
    Fully compatible with almost all Cisco devices. Ideal for data center, campus network, metro network, etc.
  • 3. Protocols
    Compliant with QSFP+ MSA, SFF-8436, 40G Ethernet.
  • 4. Quality Certifications
    Backed by CE, FCC, ROSH, ISO9001.

Applications

Point to Point Solution for 40GBASE-LR4 Ethernet

Related Products:

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

 

The QSFP 40GBASE-LH4 Connectivity Testing on Switches

qsfp-40g-lh4

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

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  • 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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Total score

(117 Reviews)

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  • United States of America
    2023-03-31

    I have used these 40G modules for nearly a month. I feel so good until now. They run very fast and stably.And the shipping and delivery was fast, I will keep an eye out for this type of product.

    Transceivers typeQSFP-40G-SR4

    CompatibleCisco

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  • Carr Price United States of America
    2023-03-30

    I have used a number of different optical transceivers over the years, but this 40G model is by far the best I have ever used. It is extremely reliable and has given me no issues whatsoever.

    Transceivers typeQSFP-40G-SR4

    CompatibleCisco

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  • Kenh United States of America
    2023-03-27

    It is the most affordable module I bought, match with OS2 SMF fibers, and ensures full compatibility with Arista equipment. I faced some configuration trouble with my equipment, and the sales manager from QT helped to solve it quickly, and kindly customer service. Thanks.

    Transceivers typeQSFPP-40GBASE-LR4

    CompatibleArista

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  • Steven United States of America
    2023-03-25

    In terms of the same performance, I prefer to choose QT. The price is very competitive, making it a great value. As soon as the package arrived, I plug it into my Juniper switch and to be recognized in three seconds, amazing, and I like the vivid blue pull ring, which make it easy to plug and unplug operation.

    Transceivers typeQSFPP-40GBASE-LR4

    CompatibleJuniper

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  • Kenh United States of America
    2023-03-25

    Full compatibility with Cisco equipment, our technician gives the active evaluated feedback promptly, and support Protocols including IEEE 802.3ba, QSFP+ MSA, SFF-8436, SFF-8636, it is an ideal choice to extend 10km with full 40G speed.3 years warranty is also a friendly assurance.

    Transceivers typeQSFP-40G-LR4

    CompatibleCisco

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  • Gee United States of America
    2023-03-25

    I always like Huawei's products, however, something goes wrong with the logistics recently, I noticed that QT shipped from US, the first order was placed three weeks ago and arrived three days later with very fast action. I've had great success with this optical module in my Huawei device. It's fast, stable, and effortless to install. I will pay more attention for longer.

    Transceivers typeQSFP-40G-SR4

    CompatibleCisco

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  • Donald United States of America
    2023-03-25

    The optical module has been a great addition to my fiber optic network card. thanks very much for Talia’s suggestion, full stars for the professional customer service. In addition,I have to say that the compatibility is really excellent for many vendors.

    Transceivers typeMC2210411-SR4

    CompatibleMellanox

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  • Mark United States of America
    2023-03-25

    It saved lots of expenses buying from QT, yes, friendly and affordable price compared with another vendor. 430-4593 This module worked perfectly with my Dell switch, and the DDM function is available, which means any error can be reported at once, most cost-effective module, Good.

    Transceivers type430-4593

    CompatibleDell

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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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  • Daniel United States of America
    2023-03-25

    This module was a breeze to set up and has worked flawlessly with my Arista network. The transceiver was designed with a 4-channel QSFP+ connector, achieving a total 40Gbps data rata speed, and the price was also very competitive, making it a great value.

    Transceivers typeQFX-QSFP-40G-SR4

    CompatibleJuniper

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Cisco QSFP-LR4-40G-20 Compatible 40GBASE-LR4 QSFP+ 1310nm 20km DDM LC SMF Optical Transceiver Module

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Transceivers type QSFP-LR4-40G-20

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