WS-X4991 Fan Tray for Cisco Catalyst 4900 Series

The Cisco WS-X4991 is a dedicated fan tray designed for Cisco Catalyst 4900 Series switches, supporting stable airflow and consistent thermal performance. By ensuring proper cooling across switching components, it helps maintain system reliability in enterprise and service-provider environments. As part of a refurbished networking equipment strategy, the WS-X4991 offers a cost-effective way to extend the operational life of installed Catalyst 4900 platforms.

Key Features & Benefits

• Purpose-built fan tray – Provides correct airflow for Catalyst 4900 Series
• Improved thermal stability – Helps protect switching hardware from heat stress
• Hot-swappable design – Reduces downtime during maintenance
• Reliability-focused – Supports consistent performance in high-duty networks
• Lifecycle extension – Enables continued use of mature Catalyst deployments
• Cost-effective spare – Reduces OPEX for established infrastructure

Ideal For

• Enterprise campus switching
• Service provider aggregation layers
• Data centre edge deployments
• High-availability network environments
• Preventive maintenance and spares management

Specifications at a Glance

Form factor: Fan tray / airflow module
Interfaces/ports: Not applicable
Bands/standards: Not applicable
Throughput: Not applicable
Power: Spec not provided.
Dimensions/weight: Spec not provided.
Operating temp: Spec not provided.
Certificates (RoHS/CE): Spec not provided.
Known limitations: Compatible only with Cisco Catalyst switches designed for WS-X4991.
Common aliases / cross-refs: Catalyst 4900 fan tray; WSX4991.

Trust, Testing & Service

All refurbished Cisco cooling components from PICS Telecom undergo full operational testing, physical inspection, and verification of airflow performance. Items are supplied with our warranty, securely packaged, and shipped quickly. PICS operates under circular-economy and zero-to-landfill principles to maximise sustainability.

Conclusion

The WS-X4991 offers a reliable cooling solution for Catalyst 4900 Series switches, supporting long-term network stability. For availability or pricing, please contact PICS Telecom at https://www.picstelecom.com or browse inventory on https://marketplace.picstelecom.com