Juniper Networks QDD-400G-VR4

Brand: Juniper Networks | SKU: QDD-400G-VR4

The QDD-400G-VR4 is a 400G QSFP-DD optical transceiver module designed for 400G Ethernet applications, supporting transmission distances up to 100 meters over OM4 multimode fiber using four parallel 100G PAM4 channels. It features an MPO-12 connector and is compliant with the QSFP-DD MSA and IEEE 802.3bs 400G VR4 standards.

Refurbished Availability

Refurbished Juniper Networks QDD-400G-VR4 transceivers are available through Comtek, offering a reliable and cost-effective alternative to new equipment. Each refurbished unit undergoes comprehensive quality assurance and rigorous multi-stage testing to ensure optimal performance and reliability. By choosing refurbished, you benefit from significant cost savings while maintaining the highest standards of operational excellence for your network infrastructure.

Expert Repair Service

Comtek provides expert repair services for the Juniper Networks QDD-400G-VR4 and similar transceiver modules. Our highly skilled engineers deliver fast turnaround times and support hardware from leading vendors such as Cisco, Juniper, and Nokia. This comprehensive repair capability helps network operators, telecoms, and critical infrastructure providers maximise uptime, reduce operational costs, and extend the life of their essential equipment.

Global Presence

With repair centres and offices located in the UK, Northern Ireland, Germany, Greece, and the USA, Comtek offers a truly global service network. Our international footprint ensures responsive local support, rapid logistics, and enhanced customer satisfaction, making it easy for organisations worldwide to maintain and repair their critical infrastructure with confidence.

Committed to Sustainability

Comtek is dedicated to promoting the circular economy by extending the life of telecom, network, and infrastructure equipment like the QDD-400G-VR4. Through refurbishment and repair, we help organisations reduce e-waste and carbon emissions, delivering long-term value and supporting environmentally responsible business practices.

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.