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LQ-CW40-FR4C 40g qsfp+ 1310nm 2km duplex lc dom smf optical transceiver module
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LINK-PP LQ-CW40-FR4C 40G QSFP+ 1310nm 2km Duplex LC DOM SMF Optical Transceiver Module

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Product summary

Product
LINK-PP LQ-CW40-FR4C 40G QSFP+ 1310nm 2km Duplex LC DOM SMF Optical Transceiver Module
SKU
187630
P/N
LQ-CW40-FR4C
Price
$ 248
Stock
1200 in Stock
Sold
5.8K
For Order Over $1000 Get $15.00 Off , Code: Linkpp15
For Order Over $3000 Get $50.00 Off , Code: Linkpp50
For Order Over $5000 Get $100.00 Off , Code: Linkpp100
New Users: $10 Coupon for Orders , Code: linkpp2610
45 Reviews
5 Questions
5.8K Sold
Shipping:
Free Shipping
to United States via FedEx
Estimated delivery time : 3 - 10 days.
5-Year Warranty 30-Day Returns 30-Day Exchange
Warranty
  • Providing industry-leading 5-year warranty.
  • Read the table for details of all products' warranty.
Returns & Exchange
  • Refunds will be received about 5 business days after the receipt of returned items.
  • Items in stock for replacement can be shipped within 1 business day.
  • Read the full return policy for details.
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LINK-PP LQ-CW40-FR4C 40G QSFP+ Specifications

The LINK-PP LQ-CW40-FR4C is a high-performance 40G QSFP+ transceiver designed for efficient optical communication. Built for single-mode fiber applications, this commercial-grade module perfectly complies with the IEEE 802.3ba 40GBASE-FR4 standard. It features a hot-pluggable form factor and operates reliably within a standard temperature range, ensuring stable enterprise networking connectivity.

LINK-PP Part Number LQ-CW40-FR4C Vendor Name LINK-PP
Form Factor QSFP+ Max Data Rate 40Gbps
Wavelength 1271nm, 1291nm, 1311nm, 1331nm Max Cable Distance 2km
Connector Duplex LC Media SMF
Transmitter Type DFB Receiver Type

PIN

Operating Temperature Range 0°C to +70°C Protocols 40G Ethernet, Fibre Channel, SATA/SAS3, MSA Compliant
Host FEC Supported DOM/DDM

Supported

Key Features of LINK-PP LQ-CW40-FR4C 40G QSFP+

This advanced optical module delivers exceptional efficiency with a low power consumption of under 3.5W. Utilizing a high-quality DFB laser and sensitive PIN detector, the transceiver ensures superior signal integrity. It supports data rates up to 11.3Gbps per channel seamlessly.

LINK-PP LQ-CW40-FR4C 40G QSFP+ Optical Module

As a robust 40G optical transceiver, this device is engineered to meet modern datacom demands. It delivers cost-effective and high-speed data transmission, making it an excellent hardware choice for upgrading enterprise routing and switching equipment.

LQ-CW40-FR4C: 40G Connectivity for Campus Network

This module is an ideal solution for a reliable 40G campus link and seamless data center interconnect infrastructure. It provides organizations with the necessary bandwidth to support high-density computing and rapid data sharing across large enterprise networks.

LQ-CW40-FR4C Module with CWDM4 Technology for Fiber Efficiency

Utilizing advanced optical multiplexing, this CWDM4 optical transceiver consolidates four data lanes onto a single fiber pair. This innovative MUX/DEMUX design significantly maximizes existing infrastructure, helping network administrators save fiber resources and reduce overall cabling costs.

LQ-CW40-FR4C Module with 1271nm, 1291nm, 1311nm, 1331nm Wavelength

Operating on coarse wavelength division multiplexing technology, the device precisely transmits optical signals across four distinct center wavelengths. By utilizing 1271nm, 1291nm, 1311nm, and 1331nm channels, it effectively prevents signal interference while maintaining high-speed throughput.

LQ-CW40-FR4C Module Supporting 2km Transmission

Engineered for medium to short-range optical link requirements, this component guarantees a stable 2km reach over standard SMF. It bridges the gap between different facility rooms, providing a dependable solution for medium-distance telecommunication tasks.

LQ-CW40-FR4C Module with Duplex LC Interface

Featuring a standard LC duplex connector, the transceiver integrates effortlessly into standard single-mode fiber patch panel setups. This universal optical interface ensures quick insertion, firm physical connection, and minimal insertion loss during high-capacity data transfers.

LQ-CW40-FR4C Module with DOM for Real-Time Monitoring

Equipped with comprehensive digital diagnostic monitoring capabilities, administrators can track vital module status metrics instantly. Accessible via a standard 2-wire I2C interface, this DOM feature reports real-time temperature, voltage, and optical power parameters for proactive maintenance.


LINK-PP LQ-CW40-FR4C 40G QSFP+ Certification

Demonstrating strict adherence to industry compliance, this pluggable device aligns fully with the SFF-8436 MSA standard. Users are assured of maximum safety and regulatory conformity globally.

Optical Transceivers Testing

Every single unit undergoes a rigorous factory inspection and comprehensive optical testing program. This multi-step verification process guarantees that each delivered component performs flawlessly under heavy workloads.

LQ-CW40-FR4C Quality Certifications

This premium product holds essential global approvals, including CE, FCC, UKCA, and UL marks. Furthermore, being REACH and RoHS compliant ensures it meets strict environmental safety standards.

LQ-CW40-FR4C Certified for Reliable Host-Device Compatibility

Expertly coded for broad switch compatibility, the firmware ensures seamless integration with major network router brands. This certification prevents vendor lock-in and simplifies complex enterprise IT deployments.


Rigorous Testing Ensures Reliable QSFP+ Performance

To guarantee long-term network reliability, multiple stages of strict performance validation are conducted. These precise laboratory assessments ensure optimal functionality before shipment.

Optical

Optical Spectrum Test

This verifies center wavelength precision and verifies adequate side-mode suppression ratio for clarity.

Optical

Eye Pattern Test

Engineers evaluate optical signal integrity to guarantee the transmitter produces clear, jitter-free transmissions.

Optical

Bit Error Rate Test

Long-duration BERT evaluations confirm absolute data transmission accuracy across the entire network link.

Optical

Temperature Test

Cycling through the 0°C to +70°C commercial operating temperature ensures excellent thermal stability.


Product Shipping for LINK-PP LQ-CW40-FR4C 40G QSFP+

We employ professional and secure logistics protocols for optical equipment delivery. Our packaging strategies safeguard your delicate hardware components during global transit.

Anti-Static Protective Packaging

Anti-Static Protective Packaging

Sealed in premium ESD bags to maintain a completely static-free environment.

Shock-Resistant Transport Protection

Shock-Resistant Transport Protection

High-density foam inserts provide superior impact resistance against mechanical transit shocks.

Fast Order Processing and Dispatch

Fast Order Processing and Dispatch

Automated warehouse dispatch systems ensure quick fulfillment of all urgent network orders.

Global Logistics and International Delivery

Global Logistics and International Delivery

Partnered with top-tier courier networks for highly reliable and rapid worldwide shipping.

LINK-PP LQ-CW40-FR4C 40G QSFP+ Usage Demonstration

Experiencing this hot-swappable installation is remarkably straightforward for any IT technician. Simply align the module with a compatible network switch port, push until the latch clicks securely, and immediately connect your fiber patch cords to establish connectivity.

LQ-CW40-FR4C Technical Support

LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.

Pre-Sales Technical Consultation

Pre-Sales Technical Consultation

Professional technical guidance to help customers select the most suitable LQ-CW40-FR4C modules based on network architecture and application requirements.

Compatibility Verification Support

Compatibility Verification Support

Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.

Deployment & Installation Assistance

Deployment & Installation Assistance

Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.

Long-Term Technical Assurance

Long-Term Technical Assurance

Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.

LINK-PP LQ-CW40-FR4C 40G QSFP+ After-Sales Assurance

LINK-PP provides after-sales support for the smooth deployment and reliable operation of the optical modules.

15 days

15-day no-reason return and refund

Free maintenance or replacement

Free replacement for dead-on-arrival (DOA) or defective items within the initial period

Free maintenance

 Free repair services for manufacturing defects throughout the warranty period

Limitations

Warranty exclusions and conditions apply

Model Comparison Table

LINK-PP

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M***l
Norway
Verified Purchase
5 .0
2026-06-19
Easy install, perfect OEM compatibility.
M***s
Peru
Verified Purchase
5 .0
2026-05-09
Reliable 2km SMF transceiver, top notch.
W***r
Colombia
Verified Purchase
5 .0
2026-05-04
Tested this 40GBASE-FR4 optic on a Juniper switch for base station backhaul. MUX/DEMUX handles the 1271-1331nm wavelengths brilliantly. Under 3.5W power draw keeps the rack cool.
D***s
Switzerland
Verified Purchase
5 .0
2026-04-22
Fast shipping to Germany, great DDM monitoring!
N***n
Panama
Verified Purchase
5 .0
2026-03-30
Exactly what our machine room needed!
A***l
Hong Kong
Verified Purchase
5 .0
2026-03-22
Cheaper than OEM Arista optics but identical 2km fiber transmission. Highly recommend!
J***s
Japan
Verified Purchase
5 .0
2026-03-15
Works flawlessly with my Juniper gear!
C***z
New Zealand
Verified Purchase
5 .0
2026-02-20
Awesome 40Gbps optical module for campus networking.
M***n
Greece
Verified Purchase
5 .0
2026-01-16
Perfect 40G duplex LC optic in Canada.
S***s
Czech Republic
Verified Purchase
5 .0
2025-10-31
Best affordable 40G CWDM4 module for home 10G NAS upgrades. Plugged into my EdgeCore gear seamlessly. Latency is non-existent on single mode fiber. Will definitely buy more!
E***h
Spain
Verified Purchase
5 .0
2025-10-25
Great MSA compliant transceiver. Tested with HPE Aruba, instant link up over SMF.
R***s
Poland
Verified Purchase
5 .0
2025-09-11
Excellent LINK-PP CWDM4 module. TX/RX levels remain stable even at 60°C operating temp.
J***n
Norway
Verified Purchase
4 .0
2025-06-23
Fast 2km SMF optical module, but tracking updated late. Still recommend for US buyers!
R***s
Colombia
Verified Purchase
5 .0
2025-05-24
Replaced old DACs with this 2km duplex LC optic. Much cleaner outdoor cabinet setup!
M***s
Czech Republic
Verified Purchase
5 .0
2025-05-19
Deployed these LQ-CW40-FR4C in our campus fiber network. Flawless Cisco and Arista compatibility. The DOM DDM feature is insanely accurate for monitoring 1311nm Tx/Rx power. Great value!
C***e
India
Verified Purchase
5 .0
2025-05-16
Flawless 40Gbps throughput on D-Link switches. DDM reporting is super handy for remote IT.
D***r
Chile
Verified Purchase
5 .0
2025-05-10
Bulk deployed these 40GBASE-FR4 in our UK data center. Incredible ROI and reliable performance.
M***e
Brazil
Verified Purchase
5 .0
2025-04-22
Bought a batch of 40G QSFP+ transceivers for our datacenter interconnect. Stable 2km transmission over duplex LC SMF. Working perfectly at 45°C indoors. Zero drops so far.
S***r
Spain
Verified Purchase
5 .0
2025-04-17
Cheap 40G QSFP+ that actually works well.
R***n
Portugal
Verified Purchase
5 .0
2025-03-26
Used for a multi-brand switch test. No compatibility issues with this QSFP+ module.
K***l
Spain
Verified Purchase
5 .0
2025-03-20
Solid Cisco compatible 40G QSFP+ for our server room. Plug and play, folks!
S***s
Colombia
Verified Purchase
5 .0
2025-03-04
Stable 1310nm link. No packet loss.
S***a
France
Verified Purchase
5 .0
2024-12-29
Simple, easy to use and store in my kit.
H***n
Belarus
Verified Purchase
5 .0
2024-12-10
Every thing went smooth. I had a question and called, they helped me right away.
L***a
Cambodia
Verified Purchase
5 .0
2024-12-09
Have purchased from them many times. Always good to deal with!
J***r
Republic of Korea
Verified Purchase
5 .0
2024-11-18
Always have a wide selection of Optical Transceivers at good prices generally.
K***s
Belarus
Verified Purchase
5 .0
2024-11-17
It was great. I'm very happy with my purchase.
D***U
Hungary
Verified Purchase
5 .0
2024-11-07
I WAS VERY IMPRESSED WITH YOUR EXCELLENT SERVICE. THANK YOU.
B***v
Russian Federation
Verified Purchase
5 .0
2024-07-17
They get your equipment shipped to you quickly. Their prices are good and the products are quality.
T***f
Japan
Verified Purchase
5 .0
2024-07-16
good place to shop great variety of products
I***f
Singapore
Verified Purchase
5 .0
2024-07-06
Have shopped with Link-pp for years. Good prices, great service and quick ship.
S***r
Finland
Verified Purchase
5 .0
2024-04-02
I had an exceptional experience working with l-p.com. The Product was delivered very Fast and works like a charm.
E***l
United Arab Emirates
Verified Purchase
5 .0
2024-02-16
LINK-PP is a good choice. Their products are always with high quality and low price.
a***d
United States
Verified Purchase
5 .0
2024-02-10
easy navigation, wide selcetion, smooth communication, but longer delivery than expectation.
K***n
Indonesia
Verified Purchase
5 .0
2023-12-19
The company works with us very easily and I would recommend them to others
J***w
Italy
Verified Purchase
5 .0
2023-10-19
Wish there was a free shipping option for smaller purchases.
E***l
Bangladesh
Verified Purchase
5 .0
2023-09-29
Great service,great prices,Fast shipping, I will be buying a lot of things from them thanks
R***p
Ukraine
Verified Purchase
5 .0
2023-06-30
Pleased with ordering .
S***n
United States
Verified Purchase
5 .0
2023-06-26
Fast shipping, excellent packaging, insanely prompt customer service.
Y***i
Germany
Verified Purchase
5 .0
2023-06-14
Your web site is easy to understand and get around
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