MSI MAG A750GL PCIE5 Power Supply Unit vs JUSTOP Black 700W Power Supply Unit ATX PSU With 120MM Quiet Fan

Price Comparison

The MSI MAG A750GL PCIE5 Power Supply Unit is significantly more expensive than the JUSTOP Black 700W Power Supply Unit. The MSI model is priced at £74.99, while the JUSTOP model is available for only £29.95. This price difference of £45.04 reflects the varying features and capabilities each power supply offers. For budget-conscious consumers or those building low to mid-range systems, the JUSTOP model presents a compelling value proposition, especially given its competitive pricing for a 700W power supply.

Efficiency and Certification

When it comes to efficiency, the MSI MAG A750GL leads with an 80 PLUS Gold certification, indicating efficiency levels of up to 90%. This is particularly beneficial for users with high power consumption components, such as high-end GPUs and CPUs. In contrast, the JUSTOP Black power supply only achieves a 70% efficiency rating, which may result in higher energy consumption and heat output over time. For those prioritising energy efficiency and long-term savings, the MSI model stands out as the superior choice.

Power Output and Compatibility

The MSI MAG A750GL boasts a robust power output of 750W, with the capability to handle demanding hardware setups. It features a native 16-pin PCIe connector for PCIe 5.0 GPUs, allowing it to provide up to 450W directly to these powerful graphics cards. The JUSTOP model, while still respectable with its 700W output, is designed primarily for standard ATX systems and does not support the latest PCIe 5.0 standard. For users looking to future-proof their builds or using high-performance components, the MSI power supply is the clear winner.

Modular Design

One of the key advantages of the MSI MAG A750GL is its fully modular design. This allows users to connect only the cables they need, reducing clutter and improving airflow within the case. The flat black cables also contribute to a cleaner aesthetic. On the other hand, the JUSTOP Black model does not mention modularity in its specifications, which may result in excess cables being left inside the case. For builders who value tidy cable management, the MSI power supply provides a significant edge.

Cooling Solutions

The MSI MAG A750GL features a 120mm fluid dynamic bearing fan, which ensures reliable cooling performance while operating quietly. This is crucial for maintaining system stability, especially under heavy loads. The JUSTOP Black model also includes a 12cm cooling fan designed for quiet operation. However, the specification does not detail the fan's bearing type or cooling efficiency. Therefore, users seeking effective thermal management may find the MSI power supply's cooling solution more appealing.

Safety Features

Both power supplies come equipped with essential safety features, but the MSI MAG A750GL offers a more comprehensive set of protections. It includes over current protection (OCP), over voltage protection (OVP), over power protection (OPP), over temperature protection (OTP), short circuit protection (SCP), and under voltage protection (UVP). The JUSTOP model also provides several protections, including OVP, UVP, OLP, OPP, and SCP. However, the broader range of protective measures in the MSI unit may result in enhanced reliability and safety for high-end builds.

Brand Reputation and Warranty

MSI is renowned for its performance-oriented products and comes with a 7-year limited warranty for the MAG A750GL, providing peace of mind for users investing in higher-end components. JUSTOP, while a reputable brand, does not specify a warranty period in the provided information. This difference in warranty length could signal to consumers that MSI is confident in the durability and reliability of its product. For buyers prioritising longevity and support, the MSI power supply may present a more reassuring option.

Which should you buy?

In conclusion, the choice between the MSI MAG A750GL PCIE5 Power Supply Unit and the JUSTOP Black 700W Power Supply Unit largely depends on your specific needs and budget. If you are looking for a high-efficiency, future-proof power supply that supports the latest technologies, offers modularity, and comes with a solid warranty, the MSI model at £74.99 is an excellent investment. Conversely, if you are on a tighter budget and require a basic power supply for a mid-range system, the JUSTOP model at £29.95 still provides adequate performance and safety features for everyday use. Ultimately, the decision should align with your system requirements and financial considerations.