Juniper Networks QDD-400G-FR4

Brand: Juniper Networks | SKU: QDD-400G-FR4

The QDD-400G-FR4 is a 400Gbps QSFP-DD optical transceiver module designed for single-mode fiber, supporting up to 2 km transmission distance over four parallel lanes using duplex LC connectors, compliant with the IEEE 802.3cu 400GBASE-FR4 standard.

Refurbished Availability

Refurbished Juniper Networks QDD-400G-FR4 modules are available, offering a cost-effective alternative to new equipment without compromising on reliability. Each unit undergoes comprehensive quality assurance and rigorous testing by our expert engineers to ensure optimal performance. Choosing refurbished equipment from Comtek not only helps reduce your capital expenditure but also supports your sustainability goals.

Expert Repair Service

Comtek provides expert repair services for the QDD-400G-FR4 and similar high-performance transceivers. Our experienced technicians are skilled in servicing products from leading vendors such as Cisco, Juniper, and Nokia. With fast turnaround times and advanced diagnostic capabilities, we help network operators, telecoms, and critical infrastructure users minimise downtime and maximise equipment lifespan.

Global Presence

With repair centres and offices strategically located across the UK, Northern Ireland, Germany, Greece, and the USA, Comtek delivers responsive support wherever you are. Our global reach enables us to offer rapid logistics, localised customer service, and consistent quality, ensuring customer satisfaction worldwide.

Committed to Sustainability

At Comtek, we champion the circular economy by extending the useful life of telecom, network, and infrastructure equipment. Our refurbishment and repair solutions help reduce electronic waste, save carbon emissions, and provide long-term value to our customers, supporting both environmental responsibility and operational excellence.

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.