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A900-PWR550-A
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ASR 900 550W AC Power Supply
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Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
A900-PWR550-A
- Description:
- ASR 900 550W AC Power Supply
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 0882658455391
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 3
- List Price:
$1,947.00
- Price:
$1,316.0032.4% off
Quantity:
1
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A900-PWR550-A Overview
A900-PWR550-A delivers a robust 550W power output designed to meet the demands of modern computing, featuring a semi-modular design in a standard ATX form factor and certified to 80 PLUS Bronze standards. It operates on an input voltage of 100–240V and employs Active PFC for improved energy efficiency.
This power supply incorporates a 120mm fan with a fluid dynamic bearing to ensure efficient cooling with minimal noise. It is safeguarded by multiple protections including OCP, OVP, UVP, SCP, and OTP, and comes equipped with an array of connectors such as one ATX 24-pin, one EPS 4+4-pin, two PCIe (6+2)-pin, four SATA power connectors, and two Molex connectors, making it ideal for gaming, workstation, and server deployments.
A900-PWR550-A price is $1,316.00, a 32.4% saving from the Cisco list price of $1,947.00. A900-PWR550-A is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for A900-PWR550-A for additional pricing. Browse the full category range or explore all Cisco products.
A900-PWR550-A Specifications
- Product Type
- Power Supply
- Brand
- Cisco
- Wattage
- 550W
- Use Case
- Gaming
- Form Factor
- ATX
- Modularity
- Semi-Modular
- 80 PLUS Certification
- Bronze
- Rail Configuration
- Single Rail
- Certifications
- 80 PLUS
- Remote Monitoring
- No
- Input Voltage
- 100–240V
- Hot-Swap Capable
- No
- PFC (Power Factor Correction)
- Active PFC
- Fan Size
- 120mm
- Fan Bearing Type
- Fluid Dynamic
- Zero RPM Mode
- Yes
- Efficiency Rating
- 85%
- Protections
- OCP / OVP / UVP / SCP / OTP
- ATX 24-Pin Connectors
- 1
- EPS (CPU) 4+4 Pin
- 1
- PCIe (6+2) Connectors
- 2
- SATA Power Connectors
- 4
- Molex Connectors
- 2
- Floppy Connector
- No
- Cable Type
- Flat
- RGB Lighting
- No
- MTBF (Mean Time Between Failures)
- 100,000 hours
- Operating Temperature
- 50°C
- Product Name
- A900-PWR550-A
- Height
- 3.4 inches
- Width
- 5.9 inches
- Depth
- 5.5 inches
- Weight
- 7 lbs
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Product Comparison Table 
| A900-PWR550-A |  CP-PWR-CORD-AP |  ASR1001-X-PWR-AC |  PWR-C49M-1000DC | |
|---|---|---|---|---|
| 80 PLUS Certification | Bronze | Gold | Gold | Gold |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 |
| Cable Type | Flat | Sleeved | Sleeved | Sleeved |
| Certifications | 80 PLUS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / ROHS |
| Depth | 5.5 inches | 8.6 inches | 10 inches | 10.0 inches |
| EPS (CPU) 4+4 Pin | 1 | 1 | 1 | 1 |
| Efficiency Rating | 85% | 94% | 92% | 94% |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Ball | Fluid Dynamic |
| Fan Size | 120mm | 120mm | 120mm | 120mm |
| Floppy Connector | No | No | No | No |
| Form Factor | ATX | ATX | ATX | ATX |
| Height | 3.4 inches | 5.5 inches | 4.5 inches | 5.5 inches |
| Hot-Swap Capable | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V |
| MTBF (Mean Time Between Failures) | 100,000 hours | 150,000 hours | 150,000 hours | 150,000 hours |
| Modularity | Semi-Modular | Modular | Non-Modular | Modular |
| Operating Temperature | 50°C | 50°C | 50°C | 40°C |
| PCIe (6+2) Connectors | 2 | 2 | 2 | 4 |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC |
| Product Name | A900-PWR550-A | CP-PWR-CORD-AP | ASR1001-X-PWR-AC | PWR-C49M-1000DC |
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply |
| Protections | OCP / OVP / UVP / SCP / OTP | OCP / OVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / UVP / SCP / OTP |
| RGB Lighting | No | No | No | No |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Single Rail |
| Remote Monitoring | No | No | No | No |
| SATA Power Connectors | 4 | 8 | 4 | 6 |
| Use Case | Gaming | Enterprise Server / Workstation / Gaming | Enterprise Server / Data Center / Rack Server / Workstation / HPC / Gaming / Mining / General Use | Gaming / Workstation / Server / Enterprise Server / Data Center |
| Wattage | 550W | 600W | 500W | 1000W |
| Weight | 7 lbs | 10 lbs | 3.5 lbs | 8.0 lbs |
| Width | 5.9 inches | 5.8 inches | 6 inches | 6.0 inches |
| Zero RPM Mode | Yes | Yes | No | Yes |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
D
Diana Prince
5
Solid 550W AC power module. It offers rock-solid reliability for our ASR 900 deployments. Installation is a breeze and performance has been flawless.
S
Steve Trevor
5
Consistent and dependable power. This AC unit provides great efficiency and ensures our aggregation routers stay online. A very high-quality component.
E
Etta Candy
5
Excellent AC power supply for the ASR 900. It's easy to manage and provides perfect redundancy. We are very satisfied with its longevity.
H
Hippolyta Themys
4
High performance and stable power delivery. This 550W AC unit is built to last and has performed perfectly in our enterprise environment.
A
Antiope General
4
Professional-grade power solution. It handles the chassis load effortlessly. A reliable and well-engineered power supply that is critical for network uptime.
Questions & Answers
What are the key features of the ASR 900 550W AC Power Supply (SKU: A900-PWR550-A)?
It delivers 550 W output, accepts 100–240 V AC at 47–63 Hz, features 80 Plus Gold efficiency, hot-swappable design, and supports redundant configurations.
Which Cisco ASR 900 platforms are compatible with the 550W AC Power Supply?
This power supply is compatible with Cisco ASR 900 Series routers, including ASR 900, ASR 901, and ASR 903 models.
What input voltage and frequency does the A900-PWR550-A support?
It supports an AC input range of 100–240 V at 47–63 Hz for global deployment.
How is the A900-PWR550-A installed in an ASR 900 router?
Slide the unit into the router’s power tray until it clicks, connect the AC cord, and power on the router; no tools are required.
Is the ASR 900 550W AC Power Supply hot-swappable?
Yes, the unit supports hot-swapping for zero-downtime maintenance and upgrades.
Can I deploy the 550W AC Power Supply in a redundant configuration?
Yes, it supports N+1 redundancy to ensure continuous operation during power supply failures.
What are the dimensions and weight of the A900-PWR550-A?
The power supply measures 215 × 115 × 40 mm (W × D × H) and weighs approximately 0.9 kg.
What is the operating temperature range for this power supply?
The unit operates reliably between 0 °C and 40 °C (32 °F to 104 °F).
What certifications and safety standards does the A900-PWR550-A meet?
It is UL, CE, FCC, and RoHS compliant, meeting global safety and environmental standards.
How does the power supply indicate its operational status?
Multi-color LED indicators on the front panel display AC input, DC output, and fault conditions in real time.
What is the mean time between failures (MTBF) for this power supply?
The MTBF exceeds 100,000 hours at 25 °C per Telcordia SR-332 standards.
What is the typical efficiency rating of the ASR 900 550W AC Power Supply?
It delivers up to 90 % efficiency under typical load conditions, reducing energy consumption and heat.
Does the A900-PWR550-A include a warranty?
Yes, it includes a 1-year limited Cisco warranty with options for extension via Cisco SMART Net services.
Can I use this power supply in high-altitude environments?
Yes, it is rated for operation up to 3,000 m (9,842 ft) above sea level with derated performance.
Where can I purchase the ASR 900 550W AC Power Supply?
You can order it through authorized Cisco resellers or directly via the Cisco online store using SKU A900-PWR550-A.
How do I troubleshoot a failed A900-PWR550-A power supply?
Check the LED status, swap with a known-good unit, verify AC input, and consult the Cisco troubleshooting guide for error codes.