Our QSFP-DD LR4 transceiver operates over single-mode fiber (SMF) with a reach of up to 10km. Featuring 4-channel PAM4 modulation, they ensure high-speed, reliable data transmission with low power consumption.
We stand by the exceptional quality of our optical transceivers, which is why we offer a lifetime warranty—giving you complete confidence in performance, reliability, and long-term value.
The CT-400G-QDD-LR4 from Carritech Optics is a QSFP-DD LR4 transceiver module designed for 400GBASE-LR4 applications, supporting data rates up to 400Gbps. Utilising a CWDM4 laser and PIN receiver, it enables reliable transmission over single-mode fiber (SMF) up to 10 kilometers. It operates with an 8×53.125Gbps PAM4 electrical interface (400GAUI-8) and features integrated digital diagnostic monitoring through an I2C interface. The module is compliant with QSFP-DD CMIS rev4.0, IEEE 802.3cu, and QSFP-DD MSA hardware standards, with RoHS compliance under EU Directive 2015/863/EU. The transceiver operates within a 0°C to 70°C case temperature range and consumes a typical power of 12W.
Designed for data center and cloud networking applications, the module provides precise optical performance with a wavelength range spanning 1264.5nm to 1337.5nm across four lanes. It delivers high extinction ratios, consistent signal strength, and robust operational reliability. The CT-400G-QDD-LR4’s QSFP-DD MSA package with an LC duplex connector ensures easy integration and scalability for modern high-speed optical networks.
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.
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:
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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At Carritech Optics, we are committed to an open approach, intelligent design principles, exceptional customer service, and delivering sustainable solutions to meet the needs of modern networking.
We provide transceivers that are fully compatible with most major OEMs, offering the flexibility and openness you need to seamlessly integrate with your existing network infrastructure.
We stand by the quality of our products with a lifetime warranty, giving you complete confidence and peace of mind in your investment.
Our in-house expertise drives us to go the extra mile, providing unparalleled support and innovative solutions that exceed expectations and set new standards in optical networking.
We are committed to sustainability by offering long product lifecycles, compact designs, and energy-efficient optimisations, ensuring we do our part to reduce environmental impact while delivering reliable performance.