40GBASE-LR4 QSFP+ 1310nm 10km DOM Duplex LC/UPC SMF Optical Transceiver Module

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40GBASE-LR4 QSFP+ 10km

PN: CT-QSFP+LR4

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40G QSFP+ LR4 1310NM 10KM
Craig ***** - Cardiff, United Kingdom
26/09/2025
A pleasure to work with and a reliable supplier!
John ***** - Egham, United Kingdom
12/09/2025
Always enjoy working with Carritech. They makes things easy.
Marcin ***** - Malsch, Germany
15/05/2025
Reliable supplier, always a pleasure to work with
Liliana ***** - Madrid, Spain
14/05/2025
Fast and friendly service, personalized support throughout
Marcus ***** - Bristol, United Kingdom
13/05/2025
A pleasure to deal with. Always rely on Carritech.
Jagielski ***** - Poznan, Poland
09/05/2025
Always good to do business with
Peter ***** - Eindhoven, Netherlands
07/05/2025
Always attentive and professional, TOP!
Grégory ***** - Mauguio, France
06/05/2025
Commercial efficace, société fiable
Zach ***** - Lakeland, Florida
01/05/2025
Great company to work with. Very flexible and reliable supplier.
Chloe ***** - Berkshire, United Kingdom
24/02/2025
Always a pleasure working with Christian Quality packaging!
Marcus ***** - Bristol, United Kingdom
03/03/2025
Fastest shipments I've seen in years. Credit to the industry.
Alfred ***** - Vienna, Austria
06/08/2018
Always a pleasure to work with whole Carritech Team!

Fast Worldwide Delivery

We ship to over 100 countries, ensuring your parts reach you quickly and reliably wherever your business operates.

Extensive Global Inventory

Thousands of optical transceivers in stock and ready to ship, helping you keep your networks running without delay.

Fully Customisable Labelling

Customise labels tailored to your business with flexible designs, branding, and specific information.

Product Specifications

The 40Gbps QSFP+ LR4 Transceiver (CT-QSFP+LR4-10) is a high-performance optical module designed for long-distance communication over single-mode fiber (SMF) up to 10 kilometers. Utilizing 4-channel CWDM technology, the transceiver multiplexes four 10Gbps input signals into a single 40Gbps optical output. It reverses this process at the receiver end, demultiplexing a 40Gbps optical signal back into four individual 10Gbps channels. The module operates at CWDM wavelengths of 1271nm, 1291nm, 1311nm, and 1331nm and features a duplex LC connector for reliable connectivity. It is compliant with QSFP+ MSA and IEEE 802.3ba standards, making it suitable for applications such as 40G Ethernet, Infiniband QDR, and data center interconnects.

Operating within a temperature range of 0°C to 70°C, the transceiver supports a single +3.3V power supply and consumes a maximum of 3.5W. Advanced digital diagnostics enable real-time monitoring of parameters like temperature, voltage, and optical power, ensuring optimal performance and simplified management. The module’s robust design includes ESD protection and RoHS compliance, emphasizing safety and environmental responsibility. With a compact form factor and exceptional optical performance, the CT-QSFP+LR4-10 is an ideal solution for high-speed, long-range optical networks.

Applications

  • Data Center Interconnect
  • 40G Ethernet
  • Infiniband QDR
  • 40G Campus Link

Features

  • 4 CWDM lanes MUX/DEMUX design
  • Up to 15Gbps data rate per wavelength
  • QSFP MSA compliant
  • IEEE 802.3ba Electrical Interface
  • Up to 10 km transmission
  • Optical link budget: 9.5dB
  • Operating case temperature: 0~70C
  • Maximum 3.5W operation power
  • SMF LC duplex connector
  • RoHS compliant

Delivery

At Carritech, we pride ourselves on our exceptional service and commitment to meeting our customers’ needs. Our extensive range of SFP transceivers is designed to cater to various requirements, ensuring that you receive the best solutions for your projects. We understand the importance of timely delivery, and our efficient processes are geared towards providing you with the products you need as quickly as possible. Our dedicated team works tirelessly to ensure that your orders are processed and dispatched promptly, so you can rely on us for swift and reliable service.

We recognise that every project is unique, and our flexible approach allows us to adapt to your specific needs. Whether you require immediate delivery or have more complex requirements, we are here to support you every step of the way. Our commitment to customer satisfaction means that we go above and beyond to ensure that you receive your SFP transceivers in a timely manner, without compromising on quality. Trust Carritech to deliver the solutions you need, when you need them.

Warranty

At Carritech Optics, we stand by the quality and reliability of our optical transceivers. That’s why we proudly offer a lifetime warranty on all products as a testament to our commitment to excellence and customer satisfaction.

What Does Our Lifetime Warranty Cover?

Our lifetime warranty provides comprehensive coverage for the entire lifecycle of your optical transceivers, ensuring you experience complete peace of mind when choosing Carritech Optics. The warranty covers:

  • Defects in Materials and Workmanship: If your product experiences any issues related to manufacturing or materials, we’ll repair or replace it free of charge.
  • Performance Assurance: Our optical transceivers are rigorously tested to meet industry standards, and we guarantee they’ll perform as expected in your network environment.
Easy Claims Process

Should you ever need to make a warranty claim, our team is here to assist you. Simply contact our support team with your product details, and we’ll guide you through a quick and hassle-free process to resolve the issue.

Your Network’s Performance, Guaranteed

Carritech Optics is dedicated to providing high-quality optical solutions that you can trust for the long haul. With our lifetime warranty, you can confidently invest in our products, knowing that we’re with you every step of the way.

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Performance Testing

At Carritech Optics, every product we supply undergoes a meticulous testing process designed to guarantee exceptional quality, reliability, and consistency. Our manufacturer operates within a professional laboratory environment, where advanced testing equipment and industry-standard procedures are used to carefully evaluate each item.

Reprogram your transceivers with speed, simplicity, and confidence.

Carritech’s Opticode is an advanced transceiver programming solution that gives you complete flexibility across your optical network. Designed to ensure seamless compatibility with a wide range of OEM systems, Opticode allows you to quickly reconfigure transceivers to meet your specific requirements. The result is greater control, reduced costs, and a more adaptable, future-proof infrastructure.

Craig ***** - Cardiff, United Kingdom
26/09/2025
A pleasure to work with and a reliable supplier!
John ***** - Egham, United Kingdom
12/09/2025
Always enjoy working with Carritech. They makes things easy.
Marcin ***** - Malsch, Germany
15/05/2025
Reliable supplier, always a pleasure to work with
Liliana ***** - Madrid, Spain
14/05/2025
Fast and friendly service, personalized support throughout
Marcus ***** - Bristol, United Kingdom
13/05/2025
A pleasure to deal with. Always rely on Carritech.
Jagielski ***** - Poznan, Poland
09/05/2025
Always good to do business with
Peter ***** - Eindhoven, Netherlands
07/05/2025
Always attentive and professional, TOP!
Grégory ***** - Mauguio, France
06/05/2025
Commercial efficace, société fiable
Zach ***** - Lakeland, Florida
01/05/2025
Great company to work with. Very flexible and reliable supplier.
Chloe ***** - Berkshire, United Kingdom
24/02/2025
Always a pleasure working with Christian Quality packaging!
Marcus ***** - Bristol, United Kingdom
03/03/2025
Fastest shipments I've seen in years. Credit to the industry.
Alfred ***** - Vienna, Austria
06/08/2018
Always a pleasure to work with whole Carritech Team!

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40GBASE-LR4 QSFP+ 10km

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