Cisco QSFP-40G-SR4-S

Brand: Cisco | SKU: QSFP-40G-SR4-S

The QSFP-40G-SR4-S is a hot-pluggable, multimode 40 Gigabit Ethernet transceiver module designed for short-range data transmission up to 100 meters over OM3 or 150 meters over OM4 MPO-terminated fiber. It is compliant with the QSFP+ MSA and IEEE 802.3ba standards, supporting data rates up to 41.2 Gbps.

Refurbished Availability

Refurbished versions of the Cisco QSFP-40G-SR4-S are available from Comtek, offering exceptional value without compromising on quality. Each refurbished unit undergoes comprehensive testing and inspection by our expert engineers to ensure full functionality and reliability. By choosing refurbished equipment, customers can significantly reduce costs and enjoy the same performance as new, all backed by our quality assurance processes.

Expert Repair Service

Comtek provides expert repair services for the QSFP-40G-SR4-S and similar transceiver modules from leading manufacturers such as Cisco, Juniper, and Nokia. Our highly skilled technicians deliver fast turnaround times, minimising downtime for critical applications in network, telecoms, and infrastructure environments. This service ensures organisations optimise their investments and maintain operational resilience.

Global Presence

With strategically located repair centres and offices in the UK, Northern Ireland, Germany, Greece, and the USA, Comtek delivers responsive and reliable service to customers worldwide. Our global footprint ensures that clients benefit from local expertise, quick logistics, and consistent customer satisfaction, no matter where they operate.

Committed to Sustainability

At Comtek, we are dedicated to supporting the circular economy by extending the useful life of telecom, network, and infrastructure equipment like the QSFP-40G-SR4-S. Our refurbishment and repair solutions help reduce electronic waste, save carbon emissions, and deliver long-term value to our customers, all while promoting a more sustainable future for the industry.

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.