Cisco PWR-3900-AC 400W AC Power Supply for 3925 / 3945 Routers –

The Cisco PWR-3900-AC is a 400W AC power supply module designed specifically for the Cisco 3925 and 3945 Integrated Services Routers (ISR). Engineered to provide stable and efficient power delivery in enterprise and branch office environments, this hot-swappable PSU offers dependable operation with quiet air-cooled performance.

This open box unit is unused, fully functional, and ideal for replacing a failed PSU or provisioning a secondary redundant power supply in Cisco 3900 Series routers.

Key Features & Benefits
400W power output for Cisco 3925 and 3945 Integrated Services Routers
Plug-in design for fast installation and hot-swap capability
Integrated airflow cooling system with low 55 dB noise level
Compatible with AC power environments (100240V)
Reliable Cisco OEM component for stable router performance

Ideal Uses
Primary or replacement PSU for Cisco 3925 or 3945 routers in enterprise setups
Redundant power supply configuration in high-availability networks
Spare unit for IT departments and network infrastructure teams
Lab and test environments running Cisco ISR routers

Specifications

Condition: device in open box. Fully functional and unused.

Model: PWR-3900-AC
Brand: Cisco
Part Number: PWR-3900-AC
Compatible Devices: Cisco 3925 / 3945 Integrated Services Routers
Output Wattage: 400 Watts
Voltage: 240 Volts
Connector Type: Plug-in Module
Cooling Method: Air-cooled
Noise Level: 55 dB
Mounting: Internal router PSU slot
Product Dimensions: 35.56 x 19.05 x 27.94 cm
Weight: 2.88 kg
UPC: 151903598481 / 080850222272 / 008265827844 / 882658278440
Warranty: 3 Month Carry-in Warranty
What's in the Box: Cisco PWR-3900-AC Power Supply Module