CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U vs PUSOKEI Power Supply for
Updated August 2026 — The CORSAIR CX650 is a high-performance power supply ideal for demanding systems, while the PUSOKEI is a budget-friendly option for low-power devices.
The CORSAIR CX650 is a high-performance power supply ideal for demanding systems, while the PUSOKEI is a budget-friendly option for low-power devices.
Why CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U is better
efficiency
CORSAIR CX650 has 80 PLUS Bronze certification with up to 88% efficiency.
cooling
CORSAIR CX650 features a low-noise fan for quieter operation.
power output
CORSAIR CX650 delivers 650W, suitable for high-performance PCs.
Why PUSOKEI Power Supply for is better
price
PUSOKEI is significantly cheaper at £11.77.
lightweight
PUSOKEI has a lightweight plastic shell.
specific use
PUSOKEI is tailored for Raspberry Pi devices.
Overall score
Specifications
| Spec | CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U | PUSOKEI Power Supply for |
|---|---|---|
| Brand | Corsair | PUSOKEI |
| Price | £44.99 | £11.77 |
| Power Type | ATX | Micro USB |
| Power Output | 650W | 15W |
| Cooling | Yes | No |
Dimension comparison
Overview of the Products
The CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply is a high-performance unit designed for demanding PC builds, while the PUSOKEI Power Supply is a more basic option aimed at specific applications. The price difference is quite significant, with the CORSAIR unit retailing at £44.99 and the PUSOKEI at only £11.77. This stark contrast highlights the varying target audiences and functionalities of these two power supplies.
Efficiency and Power Delivery
The CORSAIR CX650 boasts an 80 PLUS Bronze certification, which guarantees up to 88% operational efficiency. This high level of efficiency means less wasted energy and lower heat generation, which can lead to reduced energy costs over time. In contrast, the PUSOKEI Power Supply delivers a maximum output of 15W, with a stable 5V at 3A. While sufficient for its intended use, the PUSOKEI's lower power output limits its applications, particularly for more powerful PC systems.
Cooling and Noise Levels
When it comes to cooling and noise levels, the CORSAIR CX650 excels with its 120mm thermally controlled low-noise fan. This fan only ramps up under heavy load, ensuring quieter operation during lighter tasks. This feature is particularly beneficial for users who prioritise a silent computing environment. On the other hand, the PUSOKEI Power Supply does not specify any cooling features, which suggests it operates without dedicated cooling mechanisms. As a result, users may experience more noise or overheating risks during prolonged use.
Build Quality and Design
The CORSAIR CX650 is designed with a compact casing of 125mm in length, making it compatible with most modern PC cases. Its black sleeving and powder-coated casing add a professional aesthetic that appeals to gamers and PC builders alike. In contrast, the PUSOKEI Power Supply features a good-quality plastic shell that is noted for its corrosion resistance and light weight. While the PUSOKEI is designed for durability, its simpler construction does not match the refined design of the CORSAIR unit.
Target Applications
The intended applications of these two power supplies are quite different. The CORSAIR CX650 is suitable for high-performance gaming and workstation PCs, accommodating a range of components that may require significant power. Conversely, the PUSOKEI Power Supply is specifically tailored for devices like the Raspberry Pi 3B+/3B/2B, making it a niche product for users needing a reliable power source for these small-scale systems. This distinction is crucial for potential buyers, as the performance needs vary significantly between general-purpose PCs and specialised devices.
Pricing and Value
At a price of £44.99, the CORSAIR CX650 offers significant value for users needing a robust power supply capable of delivering high efficiency and reliability. In contrast, the PUSOKEI Power Supply is priced at just £11.77, making it an attractive option for budget-conscious consumers or those with specific low-power requirements. However, the value derived from each product must also be weighed against its intended use and performance capabilities.
User Experience and Longevity
User experience with the CORSAIR CX650 is likely to be superior due to its efficient operation, low noise levels, and robust build quality. This power supply is designed to provide consistent performance over time, which may result in lower long-term costs due to reduced energy consumption and fewer replacements. The PUSOKEI Power Supply, while inexpensive, may not offer the same level of longevity or reliability, especially under heavier loads or in demanding environments.
Which should you buy?
Choosing between the CORSAIR CX650 and the PUSOKEI Power Supply ultimately depends on your specific needs. If you require a high-efficiency power supply for a gaming rig or high-performance PC, the CORSAIR unit is the clear winner with its superior power delivery, efficiency, and cooling capabilities. However, if you are looking for an affordable and straightforward solution for low-power applications like a Raspberry Pi, the PUSOKEI is a suitable choice at a fraction of the cost. Consider your usage scenario and budget carefully to make the best decision.
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