Name: RS550-ACAAD3-US Cooler Master 550-Watt Power Supply
Brand: Cooler Master
SKU: RS550-ACAAD3-US
Price: 159.34 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The Cooler Master RS550-ACAAD3-US is a 550-watt power supply designed to provide steady power to a range of desktop computers. It fits into standard ATX cases and offers a good mix of connectors to support various hardware setups. This unit balances power capacity and efficiency, making it a solid choice for everyday computer builds.

General Information
Brand	Cooler Master
Part Number	RS550-ACAAD3-US
Product Type	Desktop Power Supply
Condition	Refurbished

Technical Information
Input Voltage	100-240V AC
Input Frequency	50-60 Hz
Output	+3.3V,+5V,+12V,-12V,+5Vsb
Max. Output Power	550W
Efficiency Rating	80 Plus Bronze
Hot Swappable	No
Redundant Support	No
Cooling Type	Active Fan
Modularity	Non-Modular
rail_design	Single 12V Rail
Number of Fans	1

Compatibility
Form Factor	ATX

Connectors
Connector Types	24-pin ATX, 8-pin CPU, 6+2-pin PCIe, SATA, Molex

Physical Characteristics
Weight	3.00

Certifications and Environmental
Compliance Standards	WEEE, RoHS, CE, FCC, UL

Product Description
The Cooler Master RS550-ACAAD3-US power supply is built to deliver reliable energy to desktop computers. It provides a steady 550 watts of power, suitable for mid-range systems requiring consistent performance without fluctuations. Often found in home and office PCs, it ensures components receive the necessary power to operate smoothly. This power supply is commonly used in gaming rigs, workstations, and general-purpose desktops where efficiency and durability matter. It's designed for users who want a balance between power and energy savings, making it a practical choice for various computer builds. Key Features Certified 80 Plus Bronze rating for reduced energy waste Quiet 120mm fan maintains optimal temperatures under load Includes multiple SATA and PCIe connectors for versatility Built-in protections against overvoltage and short circuits Compact design to accommodate smaller PC cases Typically deployed in desktop systems where reliable power delivery is critical, this Cooler Master supply supports a smooth computing experience. Its energy-efficient design helps reduce electricity costs and heat output, which benefits both the user and the environment.

Use Cases
The Cooler Master RS550-ACAAD3-US power supply is commonly deployed in small to medium business (SMB) office desktops and home workstations that require reliable power delivery without excessive energy consumption. It is well-suited for system builders focusing on efficient, cost-effective ATX builds that support moderate workloads including general productivity and multimedia tasks. How It's Used: Powering entry-level virtualization hosts running lightweight hypervisor setups in remote offices. Supplying stable power for desktop PCs used in educational institutions and computer labs with mixed hardware components. Supporting compact office workstations that handle document processing, web conferencing, and light data analysis. Providing reliable energy efficiency for small-scale content creation rigs managing photo editing and video encoding workflows. Enabling upgrades in legacy ATX systems within SMB IT environments to improve power stability and reduce energy costs. This power supply enhances operational reliability by delivering consistent wattage and maintaining energy efficiency, facilitating scalable performance for varied business computing needs. Its compatibility with common hardware configurations ensures seamless integration in environments that demand dependable yet cost-conscious power solutions.