1. Computer Power Supplies Parts
  2. sku: 10478447300353633
  3. COOLER MASTER RS-550-ACAA-A1

COOLER MASTER RS-550-ACAA-A1 Power Supply Pfc 550W

Rs-550-acaa-a1 Cooler Master 550w Computer Power Supply With Active Pfc

( Brand: Cooler Master ), ( Manufacturer Part Number: RS-550-ACAA-A1 ), ( Type: Computer Power Supply )

Review COOLER MASTER 550w Computer Power Supply Active Pfc

The Cooler Master RS-550-ACAA-A1 is a high-performance 550-watt power supply unit (PSU) designed to deliver reliable and efficient power to your computer components. This 80 Gold certified PSU adheres to the highest energy efficiency standards, converting up to 90% of the input power into usable output power under typical loads. This results in reduced energy waste, lower operating temperatures, and a quieter operation.

The RS-550-ACAA-A1 utilizes a single 12V rail design, which provides a continuous power output of up to 50A. This design simplifies the power delivery architecture, ensuring stable and consistent voltage delivery to the components, particularly demanding graphics cards and processors.

The PSU incorporates a high-quality Japanese Capacitor design, ensuring long-lasting performance and reliability. The capacitors are tested under rigorous conditions to ensure they can handle the heavy loads and high temperatures that computer components generate. Additionally, the PSU features a Fluid Dynamic Bearing (FDB) fan, which provides efficient cooling while minimizing noise levels.

The RS-550-ACAA-A1 comes with a modular cable design, allowing users to only connect the cables they need, reducing clutter inside the case and improving airflow. The PSU also includes a full suite of protection features, including OVP (Over Voltage Protection), UVP (Under Voltage Protection), SCP (Short Circuit Protection), OCP (Over Current Protection), and OPP (Over Power Protection), ensuring the safety of your components.

This Cooler Master power supply unit is compatible with both ATX and EPS12V motherboards and is backed by a 5-year warranty, giving you peace of mind and ensuring that you have a reliable power source for your system.

The Cooler Master RS-550-ACAA-A1 is a 550-watt power supply unit (PSU) with an 80 Bronze certification. Here are some pros and cons that may help you make an informed decision about purchasing this PSU:

Pros:

1. 80 Bronze certification ensures that the PSU is energy-efficient and converts at least 80% of the input power into DC output under typical loads.

2. Modular design allows users to connect only the cables they need, reducing clutter and improving airflow inside the case.

3. Active PFC (Power Factor Correction) helps to stabilize voltage levels and reduce harmonics, ensuring a clean power supply to components.

4. Quiet operation with a maximum fan speed of 1500 RPM.

5. Protections against overvoltage, undervoltage, overcurrent, short-circuit, and overheating.

Cons:

1. The 80 Bronze certification is the minimum standard for modern power supplies, and higher certifications (such as 80 Gold or Platinum) offer better efficiency and reliability.

2. The modular design may require purchasing additional cables, which can add to the overall cost.

3. The 5-year warranty is average for the market, and some competitors offer longer warranties.

4. The maximum continuous power output may not be sufficient for high-performance systems or multiple high-power components.

In conclusion, the Cooler Master RS-550-ACAA-A1 is a decent option for budget-conscious users who require a reliable and efficient 550-watt power supply for their system. Its modular design, quiet operation, and active PFC make it an attractive choice for those who value these features. However, its 80 Bronze certification and average warranty length may be drawbacks for some users who prioritize higher efficiency and longer warranties. Ultimately, the decision to purchase this PSU depends on your specific needs and budget.

If you are looking for a more powerful or efficient power supply, you may consider upgrading to a higher wattage or certification level. However, if you are on a tight budget and require a reliable 550-watt power supply, the Cooler Master RS-550-ACAA-A1 is a solid choice.

Details:

Shipping and Handling. Cooler Master 550W Computer Power Supply RS-550-ACAA-A1 with Active PFC. The items may have slight cosmetic blemishes or defects that do not affect functionality. Support Businesses from the USA.

Fully Tested for year of use. Sold as pictured.

part #: rs550acaaa1 price

  • $35.79

specifications powsuppy:

  • brand: Cooler Master
  • mpn: Rs-550-acaa-a1
  • type: Computer Power Supply

offer powsuppy:

  • best offers: True
  • options: Ship-to-home
  • quantity: 1
  • started: December 20, 2025
  • availability: In Stock
  • sold: 0

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  • condition: Used
  • Computers/Tablet's Networking > Computer Components Parts > Power Supplies

shipping powsuppy:

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  • carrier: FedEx
  • transit: 6-10 Days
  • type: Calculated
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type: computer power supply,
category: computers > computers/tablets networking > computer components parts > power supplies, sku: 10478447300353633,

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