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A900-PWR550-D
ASR 900 550W DC Power Supply
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A900-PWR550-D is a 550W ATX power supply featuring a non-modular design and 80 PLUS Bronze certification that supports an input voltage range of 100–240V. It incorporates Active PFC and is equipped with a 120mm fan utilizing a fluid dynamic bearing to ensure efficient cooling while maintaining low noise levels. Built with robust protections such as OCP, OVP, SCP, and OTP, this unit is engineered for safety and reliability.
The A900-PWR550-D comes with essential power connectors including a 24-pin ATX connector, a 4+4 pin EPS CPU connector, and a PCIe 6+2 connector for GPU, along with multiple SATA power connectors for storage devices. Designed for demanding use cases in gaming, workstation, and server environments, its durable build quality, flat cable design, and efficiency rating of 92% make it an ideal choice for high-performance computing systems.
A900-PWR550-D price is $743.00, a 46.9% saving from the Cisco list price of $1,400.00. A900-PWR550-D is in stock and available for next-day dispatch. (terms applied)
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To get the detailed certification, please go to the Compliance Center.
 A900-PWR550-D |  CP-PWR-CORD-CN |  PWR-C49E-300AC-F |  PWR-C1-350WAC/2 |  CAB-AC-2500W-US1 | |
|---|---|---|---|---|---|
| 80 PLUS Certification | Bronze | Gold | 80 PLUS | 80 PLUS | Platinum |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| Cable Type | Flat | Braided | Flat | Flat | Braided |
| Certifications | 80 PLUS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL | 80 PLUS, CE, FCC, UL, RoHS |
| Depth | N/A | 5.9 inches | 5.5 inches | 5.5 inches | 11 inches |
| EPS (CPU) 4+4 Pin | 1 | 2 | 1 | 1 | 2 |
| Efficiency Rating | 92% | 94% | 85% | 80% | 96% |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Ball | Fluid Dynamic |
| Fan Size | 120mm | 135mm | 120mm | 120mm | 140mm |
| Floppy Connector | No | No | No | No | No |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Height | N/A | 5.5 inches | 3.4 inches | 5.9 inches | 5 inches |
| Hot-Swap Capable | No | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V | 100–240V |
| MTBF (Mean Time Between Failures) | 100,000 hours | 150,000 hours | 100,000 hours | 100,000 hours | 150,000 hours |
| Modularity | Non-Modular | Modular | Non-Modular | Non-Modular | Modular |
| Molex Connectors | 2 | 2 | 2 | 1 | 4 |
| Operating Temperature | 50°C | 50°C | 50°C | 50°C | 40°C |
| PCIe (6+2) Connectors | 1 | 3 | N/A | 1 | 8 |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Product Name | A900-PWR550-D | CP-PWR-CORD-CN | PWR-C49E-300AC-F | PWR-C1-350WAC/2 | CAB-AC-2500W-US1 |
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Protections | OCP / OVP / SCP / OTP | OCP / OVP / SCP / OTP / OPP | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP / OTP | OCP / OVP / UVP / SCP / OTP |
| RGB Lighting | No | No | No | No | No |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Single Rail | Multi Rail |
| Remote Monitoring | No | No | No | No | No |
| SATA Power Connectors | 4 | 6 | 4 | 2 | 12 |
| Use Case | Gaming | Workstation / Gaming / Enterprise Server | General Use | Enterprise Server / Workstation / Gaming | Enterprise Server / Workstation / Gaming |
| Wattage | 550W | 850W | 300W | 350W | 2500W |
| Weight | N/A | 6.5 lbs | 2.9 lbs | 3.5 lbs | 18 lbs |
| Width | N/A | 6.3 inches | 5.9 inches | 3.4 inches | 7 inches |
| Zero RPM Mode | Yes | Yes | Yes | No | Yes |
Reliable 550W DC power supply. It provides stable voltage to our ASR 900 chassis, ensuring uninterrupted service in our DC-powered data centers. Very solid build.
Excellent performance and efficiency. This DC power supply is easy to swap and provides the necessary redundancy for our core network. Highly satisfied.
High-quality and dependable power. It handles high-load periods without any issues. A vital component for maintaining high availability in our infrastructure.
Rugged and reliable. The A900-PWR550-D is a top-notch power module that delivers consistent results. We've seen zero power-related failures since installation.
Professional grade DC power. It integrates perfectly with the ASR 900 system. A dependable and essential part of our power management strategy.
The A900-PWR550-D supports a nominal –36 to –72 V DC input range, ensuring compatibility with most industrial and telecom power systems.
This DC power module delivers up to 550 W of continuous output to Cisco ASR 900 series routers.
Yes. The A900-PWR550-D is fully hot-swappable, allowing replacement without shutting down the router or interrupting network traffic.
Absolutely. You can install two A900-PWR550-D modules for N+1 redundancy, ensuring uninterrupted router operation if one supply fails.