Cisco 400W Hot-Plug Power Supply for Cisco 3925/3945 Series

The Cisco PWR-3900-AC= is a hot-plug power supply module created for Cisco 3925 and 3945 Series Integrated Services Routers. It delivers up to 400 watts of AC power, allowing the router to run voice, video, and data services without interruption.

Because the module can be inserted while the router is operating, you can add or replace it in minutes instead of scheduling a full outage. Slide the unit into the dedicated power bay, secure the latch, and the router recognizes the new source immediately.

An input range of 100 to 240 volts AC lets a single part number support offices across different regions. This versatility is helpful for organizations that deploy the Cisco 3900 Series worldwide or move hardware between sites.

Whether you are adding a second power supply for redundancy or replacing an aging unit, the PWR-3900-AC= provides the dependability expected from Cisco hardware. It keeps branch routers online so employees stay connected to critical applications and customers receive uninterrupted service.

• Up to 400 W of AC power for Cisco 3925, 3925E, 3945, and 3945E routers
• Hot-plug design allows installation or replacement without shutting down the router
• Wide input range of 100 to 240 V AC supports global power standards
• Plug-in module fits directly into the router’s power bay for seamless integration
• Suitable for adding redundancy or restoring service in production networks