CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply - U vs JUSTOP Black 650W PSU

Overview of the Products

When comparing the CORSAIR CX650 80 PLUS Bronze Non Modular Low-Noise ATX 650 Watt Power Supply and the JUSTOP Black 650W PSU, the two power supplies offer distinct features for different user needs. The CORSAIR power supply is priced at £44.99, while the JUSTOP model is more budget-friendly at £29.99. This price difference reflects the varying levels of performance and features, which can influence your decision based on your requirements.

Performance and Efficiency

The CORSAIR CX650 is 80 PLUS Bronze certified, which ensures that it delivers up to 88% operational efficiency. This high efficiency translates to less heat generation and reduced energy costs, making it a more eco-friendly option in the long run. On the other hand, the JUSTOP Black PSU does not specify any efficiency rating but offers a stable 650W output. While both power supplies provide adequate wattage for most desktop setups, the efficiency rating of the CORSAIR gives it an edge in performance and energy savings.

Cooling Solutions

In terms of cooling, the CORSAIR CX650 features a 120mm thermally controlled low-noise fan, which only ramps up to high speed under heavy loads. This ensures quieter operation during normal use, which can be a significant advantage for users who prefer a silent computing environment. Conversely, the JUSTOP PSU also includes a 120mm cooling fan but lacks specific details about its noise levels or control mechanisms. Thus, while both models focus on cooling, the CORSAIR's advanced cooling system may provide a more pleasant user experience.

Design and Build Quality

The build quality of the CORSAIR CX650 is complemented by its compact casing, measuring just 125mm in length, which allows for easy installation in most modern PC cases. It also features black sleeved cables and a black powder-coated casing, making it aesthetically pleasing in any setup. The JUSTOP Black PSU, while functional, does not provide as much information about its design or materials. Users seeking a power supply that not only performs well but also looks good in their build may prefer the more refined design of the CORSAIR model.

Safety Features

Safety is a crucial consideration when selecting a power supply. The CORSAIR CX650 guarantees full continuous power, ensuring reliability during demanding tasks. In contrast, the JUSTOP Black PSU is equipped with essential safety features such as over voltage protection, over power protection, short circuit protection, and thermal overload cut-off protection. It also holds various safety certifications, including UKCA, CE, FCC, UL, and TUV. While both power supplies offer safety assurances, the comprehensive certification of the JUSTOP may appeal to safety-conscious consumers.

Connectivity Options

Connectivity is another area where the two power supplies differ. The CORSAIR CX650 provides full continuous power across its connectors, which typically includes a range of standard connections suitable for most systems. The JUSTOP Black PSU features a variety of connectors as well, including a 20+4 pin, 4+4 pin, SATA, Molex, and PCIe connectors. This variety allows it to connect with different components efficiently. For users with multiple components or specific connection needs, the diverse options of the JUSTOP PSU could provide a practical advantage.

Price Comparison

Price plays a significant role in the decision-making process. The CORSAIR CX650 is priced at £44.99, reflecting its higher efficiency and advanced features. In contrast, the JUSTOP Black PSU offers a more affordable alternative at £29.99. While the price difference is notable, it's essential to consider what features are most valuable for your setup. If budget is a primary concern, the JUSTOP may be the better choice, whereas those who prioritise efficiency and quiet operation might find the investment in the CORSAIR worth it.

Which should you buy?

Deciding between the CORSAIR CX650 and the JUSTOP Black PSU hinges on your specific needs and budget. If you seek a power supply that combines high efficiency, low noise operation, and an aesthetically pleasing design, the CORSAIR CX650 at £44.99 is the superior choice. However, if you are looking for a more economical option that still provides sufficient power and essential safety features, the JUSTOP Black PSU at £29.99 could serve you well. Ultimately, your choice should align with your performance expectations and budget constraints.