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Apevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500W vs CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX

Updated August 2026 — Apevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500W wins on modularity, CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX wins on noise level and efficiency.

The Apevia ITX-PFC500W offers modularity and a lower price, while the Corsair CX550 excels in efficiency and support. Choose based on your priorities.

Why Apevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500W is better

Price

Apevia is $16 cheaper than Corsair.

Modularity

Apevia is fully modular.

Compact Size

Apevia is designed for small form factors.

Why CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX is better

Efficiency

Corsair has 80 PLUS Bronze certification.

Cooling

Corsair features a larger, quieter fan.

Warranty

Corsair offers a three-year warranty.

Overall score

Apevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500W
75
CORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX
85

Specifications

SpecApevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500WCORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX
ModularityFully ModularNon-Modular
EfficiencyN/A80 PLUS Bronze
Cooling Fan40mm120mm
Max Power500W550W
WarrantyN/A3 Years

Dimension comparison

Apevia ITX-PFC500W Mini ITX/Flex ATX / 1U 500WCORSAIR CX550 80 Plus Bronze Non Modular Low-Noise ATX

Overview of the Products

The Apevia ITX-PFC500W Mini ITX/Flex ATX Power Supply is priced at $49.99, while the CORSAIR CX550 80 Plus Bronze Power Supply comes in at $65.99. This makes the Apevia about 24% cheaper than the Corsair. Each power supply is designed for different user needs, focusing on modularity and efficiency, respectively.

The Apevia power supply is a fully modular option, ideal for users looking to reduce cable clutter in compact builds. In contrast, the Corsair model is a non-modular unit that emphasizes energy efficiency with its 80 PLUS Bronze certification. Both products cater to distinct segments of the PC market, making a direct comparison interesting.

Design and Build Quality

When considering design and build quality, the Apevia ITX-PFC500W stands out with its compact dimensions of 160mm x 73.66mm x 35.5mm, making it suitable for small form factor builds. The fully modular design allows users to connect only the cables they need, minimizing clutter.

On the other hand, the Corsair CX550 also features a compact casing, measuring 125mm in length, which ensures compatibility with most modern PC cases. However, being a non-modular power supply means users must manage all cables regardless of need, which could detract from the overall aesthetic of a build. Both options have their merits in terms of design, but the choice largely depends on individual preferences for modularity.

Power and Efficiency

In terms of power output, the Apevia ITX-PFC500W delivers a maximum of 500W, while the Corsair CX550 offers 550W. While the Corsair has a slight edge in wattage, the Apevia's full range Active PFC (90-264V) ensures stable performance across a variety of voltages.

Efficiency is where the Corsair shines, boasting an 80 PLUS Bronze certification that ensures up to 88% operational efficiency. This means it generates less heat and can lower energy costs compared to non-certified units. The Apevia does not provide specific efficiency ratings, which means it may not be as efficient under load as the Corsair, despite its competitive power output.

Cooling Solutions

Cooling solutions play a crucial role in the longevity and performance of power supplies. The Apevia ITX-PFC500W utilizes a 40mm double ball bearing fan for forced air ventilation, which is essential for keeping temperatures down in compact spaces. However, the smaller fan may not be as effective under heavy loads.

Conversely, the Corsair CX550 is equipped with a 120mm thermally controlled low-noise fan that adjusts its speed based on load. This design allows for quieter operation at lower loads, enhancing user experience. Given the Corsair's larger fan size and intelligent speed control, it likely offers superior cooling performance compared to the Apevia.

Connectivity and Compatibility

Connectivity options are essential for ensuring compatibility with various components. The Apevia ITX-PFC500W includes several key connectors: 1 x 20+4pin main power, 1 x 8pin 12V, 2 x 6+2 PCIE, 2 x SATA, and 2 x 4pin Molex. This variety makes it suitable for a range of builds, especially in compact setups.

On the other hand, the Corsair CX550 also provides a reliable set of connections, although it is non-modular. The lack of modularity means all cables are permanently attached, which can be a drawback for those seeking a cleaner setup. Both power supplies offer adequate connectivity, but the modularity of the Apevia gives it an edge in terms of user convenience.

User Experience and Support

User experience is critical when selecting a power supply. The Apevia ITX-PFC500W has been designed with various protections, including overvoltage and short circuit protection, enhancing reliability in operation. However, users must ensure proper connection of all cables for the unit to function correctly.

The Corsair CX550, with its three-year warranty and the backing of Corsair’s global technical support team, offers peace of mind to users. The assurance of quality and dependability is a significant advantage, especially for those new to building PCs. While both power supplies have protective features, the Corsair's established brand reputation may appeal more to first-time builders.

Pricing and Value

At $49.99, the Apevia ITX-PFC500W presents a cost-effective option for users requiring a compact and modular power supply. In contrast, the Corsair CX550 is priced at $65.99, making it about 32% more expensive. This price difference may be justified by the Corsair's efficiency rating and warranty support.

However, for budget-conscious consumers or those building smaller systems, the Apevia offers excellent value without sacrificing essential features. Ultimately, the choice may come down to how much value users place on energy efficiency and brand support versus the savings offered by the Apevia.

Which should you buy?

Deciding between the Apevia ITX-PFC500W Mini ITX/Flex ATX Power Supply and the CORSAIR CX550 80 Plus Bronze Power Supply ultimately hinges on specific needs. If you're looking for a more affordable option with modularity and flexibility for a compact build, the Apevia is the clear winner at $49.99. However, if energy efficiency, quieter operation, and brand reliability are higher on your priority list, the Corsair at $65.99 justifies its higher price. Each power supply caters to different user preferences, making the decision a matter of personal requirements and budget.