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by Cisco
Product Line: Cisco Power Supply
Product Type: PWR-3900-DC
Sold out
Original price $0.00 - Original price $600.00
Original price
$0.00 - $600.00
Current price $0.00
Title: Surplus

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Product Description

The Cisco PWR-3900-DC is a powerful and efficient power supply unit designed for use in Cisco networking equipment. With its DC input, it's perfect for use in data centers or remote locations where AC power is not readily available. It's compatible with Cisco 3900 Series routers and provides up to 3900W of power to your networking devices. The PWR-3900-DC power supply is also hot-swappable, allowing for easy replacement without downtime.

Key Feature for the PWR-3900-DC

1. Input Voltage: -48V DC 
2. Output Power Capacity: 3900W 
3. Compatibility: Cisco 3900 Series Routers 
4. Hot-swappable: Yes 
5. Efficiency: 85% 
6. Operating Temperature: -40°C to 65°C

Product Review

The Cisco PWR-3900-DC is a DC power supply unit designed for use with Cisco 3900 series routers. It provides up to 3900W of DC power to the router, ensuring reliable and continuous operation even in high-demand environments. The unit features built-in protection mechanisms against overvoltage, overcurrent, and short circuits, and is hot-swappable for easy replacement or upgrades. Overall, the PWR-3900-DC is a high-performance power supply that provides the necessary power and stability for critical network infrastructure.


The Cisco PWR-3900-DC is a DC power supply designed for use with Cisco's 3900 Series Integrated Services Routers. It provides reliable and efficient power for the router, ensuring stable network operations. The power supply supports a wide input voltage range of -40 to -60VDC, making it suitable for use in a variety of DC-powered network environments. It also features support for hot-swappable installation, allowing for easy replacement and maintenance. The PWR-3900-DC offers a maximum output power of 3900 watts, providing ample power to run the router and any connected devices. It also features built-in overload and overvoltage protection, ensuring safe and reliable operation. The power supply has a compact and sturdy design, with a form factor that is suitable for use in data center and enterprise-level networks. It also supports industry-standard management protocols like SNMP, allowing for easy integration with other network devices. Overall, the Cisco PWR-3900-DC is a high-quality DC power supply that provides reliable and efficient power to Cisco's 3900 Series Integrated Services Routers. Its wide input voltage range, hot-swappable installation, and advanced protection features make it a great choice for DC-powered network environments that require high availability and reliability.

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