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CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U vs Security-01 DC 9V 1.5A Power Supply

Updated August 2026The CORSAIR CX650 is the superior choice for high-performance needs, while the Security-01 is a budget-friendly option for low-power devices.

The CORSAIR CX650 is the superior choice for high-performance needs, while the Security-01 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

power output

650 watts vs 9V 1.5A

efficiency

80 PLUS Bronze certified vs no efficiency rating

cooling mechanism

low-noise fan vs no cooling system

Why Security-01 DC 9V 1.5A Power Supply is better

price

£9.98 vs £44.99

specific use

compatible with specific devices vs general PC use

compact design

smaller size for niche applications vs larger PC power supply

Overall score

CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U
85
Security-01 DC 9V 1.5A Power Supply
45

Specifications

SpecCORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - USecurity-01 DC 9V 1.5A Power Supply
BrandCorsairSecurity-01
Current Price£44.99£9.98
Output650W9V 1.5A
Efficiency Rating80 PLUS BronzeN/A
Cooling TypeLow-noise fanNone

Dimension comparison

CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - USecurity-01 DC 9V 1.5A Power Supply

Overview

When comparing power supplies, the CORSAIR CX650 and the Security-01 DC 9V 1.5A power supply cater to different needs. The CORSAIR CX650, priced at £44.99, is designed for robust PC performance, while the Security-01, at a budget-friendly £9.98, is tailored for specific devices requiring a 9V output. Understanding their unique features is essential for making an informed choice.

Power Output

The CORSAIR CX650 boasts a full continuous power rating of 650 watts, ensuring it can handle demanding PC components without compromising performance. In contrast, the Security-01 delivers a modest 9V at 1.5A, making it suitable for low-power devices. If you're building a gaming rig or a high-performance PC, the CORSAIR’s output is significantly superior. The difference in power output demonstrates that the CX650 is intended for energy-hungry applications, while the Security-01 is better suited for smaller, less demanding electronics.

Efficiency

The CORSAIR CX650 is 80 PLUS Bronze certified, boasting up to 88% operational efficiency. This means it generates less heat and reduces energy costs during operation, making it an environmentally friendly option for power users. Conversely, the Security-01 does not specify an efficiency rating, which is not uncommon for lower-end power supplies. If energy efficiency is a priority, the CORSAIR CX650 offers a clear advantage, particularly for users concerned about long-term electricity consumption.

Cooling Mechanism

One of the standout features of the CORSAIR CX650 is its low-noise cooling system. It employs a 120mm thermally controlled fan that only ramps up during heavy use, ensuring a quieter operation during lighter loads. On the other hand, the Security-01 lacks any mention of a cooling mechanism, which is typical for simpler power supplies. Users who value a quiet computing environment will find the CX650’s cooling capabilities a significant benefit, especially during intense gaming or work sessions.

Compatibility

The CORSAIR CX650 is designed to seamlessly integrate into most modern PC builds, thanks to its compact 125mm casing. It can deliver consistent power to a variety of components, including powerful GPUs and CPUs. Meanwhile, the Security-01 is specifically designed for devices that require a 9V input, such as certain exercise machines and Arduino projects. Its compatibility is limited to devices with a centre positive connection, making it crucial for users to check device requirements. For versatility in a PC build, the CORSAIR is the better choice.

Design and Aesthetics

In terms of design, the CORSAIR CX650 features black sleeved cables and a sleek black powder-coated casing, allowing it to blend stylishly with most PC cases. This attention to aesthetics can be important for users who wish to showcase their builds. The Security-01, however, is more utilitarian in design, focusing on functionality rather than style. For users who prioritise aesthetics in their PC setups, the CORSAIR CX650 provides a more visually appealing option.

Price Point

With a price of £44.99, the CORSAIR CX650 is a more substantial investment compared to the Security-01, which is priced at just £9.98. The price difference reflects their target markets, with the CX650 aimed at gamers and power users needing reliable performance. The Security-01 is designed for budget-conscious consumers needing a basic power supply for low-power devices. While the upfront cost of the Security-01 is appealing, it’s important to consider what you are getting for that price in terms of performance and reliability.

Use Cases

The CORSAIR CX650 is ideal for powering high-performance computers, making it suitable for gamers, content creators, and anyone running demanding applications. It provides the necessary power and stability required for such tasks. In contrast, the Security-01 is best suited for specific applications, such as powering certain exercise machines and Arduino projects. Users should carefully evaluate their needs—if you require a reliable power supply for a PC, the CX650 is the clear choice, while the Security-01 is appropriate for niche uses.

Which should you buy?

In conclusion, the choice between the CORSAIR CX650 and the Security-01 hinges on your specific requirements. If you need a robust, efficient, and quiet power supply for a gaming PC or a high-performance workstation, the CORSAIR CX650 is the superior option, offering 650 watts of power, impressive efficiency, and a reliable cooling mechanism. However, if you are looking for a budget-friendly solution for low-power devices, the Security-01 serves its purpose well at a mere £9.98. Ultimately, your decision should be guided by the intended use and power requirements of your devices.

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CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U vs Security-01 DC 9V 1.5A Power Supply | versusfinder