Cisco PWR-2821-51-AC | AC Power Supply for 2821 / 2851 Series Router

Here are the technical specifications for the Cisco AC Power Supply for 2821/2851 Series Router:

1. Input Voltage: 100-240V AC
2. Input Frequency: 50-60 Hz
3. Output Voltage: 51V DC
4. Output Power Capacity: 280W
5. Efficiency: 85%
6. Operating Temperature: 0°C to 40°C
7. Storage Temperature: -40°C to 70°C
8. Operating Humidity: 5% to 95% non-condensing
9. Storage Humidity: 5% to 95% non-condensing
10. Dimensions (WxDxH): 6.25 x 8.5 x 1.5 in
11. Weight: 2.5 lbs
12. Compatibility: Cisco 2821/2851 Series Router

Helpful notes:
1. This power supply is hot-swappable, meaning it can be replaced without powering down the router.
2. The AC power cord is not included and must be purchased separately.
3. The power supply has built-in overvoltage and overcurrent protection to ensure safe operation.