Juniper Networks QDD-2X400G-FR4

Brand: Juniper Networks | SKU: QDD-2X400G-FR4

The QDD-2X400G-FR4 is a dual-channel 400G QSFP-DD optical transceiver module designed for 800GbE applications, supporting two independent 400G-FR4 links over single-mode fiber with an LC duplex connector and a maximum reach of 2 kilometers. It is compliant with the QSFP-DD MSA and IEEE 802.3cu standards, ensuring high-performance, low-latency data transmission for next-generation data center and networking environments.

Refurbished Availability

Refurbished versions of the Juniper Networks QDD-2X400G-FR4 are available from Comtek, providing a cost-effective alternative to new equipment. Each refurbished unit undergoes comprehensive quality assurance and rigorous multi-stage testing by our certified engineers to ensure optimal performance and reliability. Choosing refurbished not only delivers significant savings but also guarantees the dependable operation you expect from leading-edge networking hardware.

Expert Repair Service

Comtek offers expert repair services for the QDD-2X400G-FR4 and similar high-speed optical transceivers. Our experienced technicians deliver fast turnaround times and support equipment from multiple major vendors—including Cisco, Juniper, and Nokia. Our repair solutions help network operators, telecom providers, and critical infrastructure organisations maintain high availability while maximising the value of their existing assets.

Global Presence

With repair centres and offices located in the UK, Northern Ireland, Germany, Greece, and the USA, Comtek provides truly global support for our customers. This widespread presence allows us to deliver responsive service, local expertise, and quick turnaround—ensuring maximum uptime and satisfaction for clients worldwide.

Committed to Sustainability

Comtek is dedicated to advancing the circular economy by extending the service life of telecom, network, and critical infrastructure equipment. Our refurbishment and repair services help reduce e-waste, lower carbon footprints, and offer long-term value for customers. By choosing Comtek, you contribute to a more sustainable future while benefiting from reliable, high-quality solutions.

For more information or to request a quote, please visit our contact form. All refurbished and repaired equipment comes with warranty coverage for peace of mind.