Cisco WS-X5239-RJ21

Brand: Cisco | SKU: WS-X5239-RJ21

The WS-X5239-RJ21 is a 24-port 10BASE-T Ethernet switching module featuring a single RJ21 connector for high-density network aggregation, designed for use with compatible Cisco Catalyst modular chassis systems. This module enables efficient, centralized copper connectivity for legacy Ethernet deployments.

Refurbished Availability

Refurbished versions of the Cisco WS-X5239-RJ21 are available through Comtek, offering a cost-effective alternative to new hardware. Each refurbished module undergoes comprehensive quality assurance and rigorous testing procedures to ensure it meets or exceeds original performance standards. Choosing refurbished equipment not only delivers significant savings but also ensures reliability and extends the lifecycle of your network infrastructure.

Expert Repair Service

Comtek provides expert repair services for the WS-X5239-RJ21 and a wide range of similar products. Our experienced engineers deliver fast turnaround on repairs for network, telecoms, and critical infrastructure equipment, supporting leading brands such as Cisco, Juniper, Nokia, and more. This expertise helps customers minimize downtime, maximize equipment value, and maintain robust, reliable operations.

Global Presence

With repair centres and offices strategically located in the UK, Northern Ireland, Germany, Greece, and the USA, Comtek ensures responsive service and global support for our customers. Our international footprint enables us to provide timely solutions, efficient logistics, and localized customer care, enhancing satisfaction regardless of your location.

Committed to Sustainability

Comtek is dedicated to supporting the circular economy by extending the operational life of telecom, network, and critical infrastructure equipment. Through expert repairs and high-quality refurbished products, we help customers reduce electronic waste, realize carbon savings, and achieve long-term value from their investments—promoting sustainability throughout 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.