Raspberry Pi Power Supply vs CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - N

Price Comparison

The Raspberry Pi Power Supply is significantly more affordable at C$18.99 compared to the CORSAIR CX550, which retails for C$84.99. This represents a price difference of C$66.00, making the Raspberry Pi Power Supply an attractive option for budget-conscious consumers. While the price point of the Raspberry Pi Power Supply caters specifically to users of the Raspberry Pi, the CX550's higher cost reflects its capabilities as a more powerful ATX power supply designed for a broader range of PC configurations.

Compatibility

The Raspberry Pi Power Supply is explicitly designed for compatibility with Raspberry Pi models, including the 3 Model B, B+, and R-Pi 2 Model B+. This targeted design ensures optimal performance for these devices. In contrast, the CORSAIR CX550 serves as a general-purpose power supply for ATX systems and is compatible with a wide variety of PC builds. The dedicated nature of the Raspberry Pi Power Supply may limit its use to Raspberry Pi enthusiasts, whereas the CX550 is versatile enough to support numerous hardware configurations.

Power Output

The Raspberry Pi Power Supply delivers a steady output of DC 5V at 3,000mA (3Amps max), which is sufficient for powering Raspberry Pi devices. On the other hand, the CORSAIR CX550 offers a much higher power output of 550 Watts, making it suitable for powering demanding components in a gaming or high-performance PC. This significant difference in power capability means that while the Raspberry Pi Power Supply is adequate for its intended purpose, the CORSAIR unit is designed for users who require substantial power for various hardware components.

Efficiency

The CORSAIR CX550 boasts an 80 PLUS Bronze certification, ensuring up to 88% operational efficiency. This level of efficiency not only reduces heat production but also lowers energy costs over time, making it a more environmentally friendly choice. Meanwhile, the Raspberry Pi Power Supply does not carry a similar efficiency rating, which could lead to higher energy consumption when used over extended periods. The efficiency factor is critical for users concerned about energy bills and system performance.

Noise Levels

When it comes to noise, the CORSAIR CX550 features a thermally controlled 120mm cooling fan that operates quietly under low loads, spinning up only when the power supply is under heavy stress. This design enhances user experience by minimising noise levels during regular operation. In contrast, while the Raspberry Pi Power Supply may not have specific noise ratings, it operates without a fan, which generally suggests a quieter operation. However, the CX550's ability to automatically adjust fan speeds according to load provides a superior balance between performance and noise management.

Cable Length and Management

The Raspberry Pi Power Supply includes a generous 6-foot cable, providing ample length for flexibility in setup and operation. This feature is particularly beneficial for users who want to position their Raspberry Pi in a variety of locations without being constrained by short cables. The CORSAIR CX550, while not specified for cable length, typically comes with standard lengths suited for most PC cases. However, it does feature black sleeving and a powder-coated casing, which aids in cable management and aesthetics, helping to maintain a clean look inside the PC case.

Warranty and Support

The CORSAIR CX550 offers a three-year warranty, reflecting the manufacturer's confidence in its reliability and performance. This warranty, combined with the support of CORSAIR's global technical team, provides peace of mind for users investing in a more expensive power supply. In contrast, the Raspberry Pi Power Supply does not mention any warranty details, which may lead to uncertainty regarding long-term use and support. Warranty and customer support are crucial factors for consumers making significant purchases, especially in terms of potential future issues.

Which should you buy?

Choosing between the Raspberry Pi Power Supply and the CORSAIR CX550 depends largely on your specific needs. If you require a power supply exclusively for a Raspberry Pi project, the Raspberry Pi Power Supply at C$18.99 is a practical and budget-friendly option. However, for those building or upgrading a gaming PC or any system requiring more robust power, the CORSAIR CX550, despite its higher price of C$84.99, offers greater efficiency, power output, and warranty support. Ultimately, your choice should be guided by your hardware requirements and whether you prioritise budget or performance.