JUSTOP Black 750W PSU vs CORSAIR RM750e

Overview

In the power supply market, the JUSTOP Black 750W PSU and the CORSAIR RM750e offer two distinct approaches to delivering reliable power to your desktop PC. Priced at £32.95, the JUSTOP PSU presents a budget-friendly option with essential features, while the CORSAIR RM750e, costing £81.99, boasts fully modular cabling and advanced certifications. This comparison will delve into their specifications, features, and overall value to help you decide which power supply best suits your needs.

Power Output and Efficiency

The JUSTOP Black 750W PSU provides a robust 750W output, making it suitable for various desktop builds, especially those requiring significant power. In contrast, the CORSAIR RM750e also offers 750W but comes with the added benefit of being Intel ATX 3.1 certified, which ensures compatibility with the latest power standards. This certification not only guarantees efficiency but also supports transient power excursions from the GPU, which can be critical for high-performance gaming or intensive workloads. Therefore, while both units offer the same wattage, the efficiency and reliability of the RM750e are enhanced by its modern certifications.

Modular Design

When it comes to modularity, the differences are pronounced. The JUSTOP Black 750W PSU features a standard design with fixed cables, which may limit flexibility during installation and cable management. Conversely, the CORSAIR RM750e is fully modular, allowing users to connect only the cables they need for their specific builds. This feature significantly enhances airflow within the case and reduces cable clutter, contributing to a neater setup. For users prioritising aesthetics and efficient airflow, the modular design of the RM750e is a substantial advantage.

Cooling Solutions

Cooling capabilities are essential for maintaining the longevity and performance of power supplies. The JUSTOP Black 750W PSU includes a 120mm cooling fan, which is standard for power supplies in this range. While this fan provides adequate cooling, it does not specifically highlight noise levels or performance under load. In comparison, the CORSAIR RM750e's 120mm rifle bearing fan is designed with a specially calculated fan curve, ensuring that noise levels are kept to a minimum, even under full load. For users who value a quieter system, the noise-reducing features of the RM750e offer a clear benefit.

Safety Features

Safety is paramount when selecting a power supply, and both the JUSTOP Black 750W PSU and the CORSAIR RM750e come equipped with important protection features. The JUSTOP unit includes over voltage protection, over power protection, short circuit protection, and thermal overload cut-off protection, which are essential for safeguarding your components. Meanwhile, the RM750e benefits from 105°C-rated capacitors, which enhance reliability and performance under various conditions. While both power supplies offer significant safety measures, the advanced capacitor rating of the RM750e provides an edge in terms of long-term reliability.

Compatibility

Compatibility is another critical factor when choosing a power supply. The JUSTOP Black 750W PSU supports a range of connectors, including a 24-Pin (20+4), an 8-Pin 12V (4+4), six SATA connectors, a 4-Pin Molex, and an 8-Pin PCI-E (6+2). This variety is adequate for most builds. On the other hand, the CORSAIR RM750e’s fully modular design not only allows for the same connectors but also ensures that users can choose the exact cables needed for their specific components. This level of compatibility and flexibility is particularly beneficial for high-end systems with various components requiring careful power management.

Price Point

The price difference between the two power supplies is significant, with the JUSTOP Black 750W PSU priced at £32.95 and the CORSAIR RM750e available for £81.99. This substantial price gap reflects the differing features and capabilities of each unit. The JUSTOP PSU is an excellent option for budget-conscious consumers looking for a straightforward power solution without the additional frills. However, for those willing to invest more, the RM750e's advanced features, modular design, and certifications justify the higher price, especially for users looking to build high-performance systems.

Brand Reputation

Brand reputation can play a considerable role in consumer choice. JUSTOP may not be as widely recognised as Corsair, which is known for its high-quality components and customer service. Corsair has built a strong reputation in the gaming and PC building communities, often receiving positive reviews for reliability and performance. This established reputation adds value to the RM750e, making it a trusted choice for many enthusiasts. In contrast, the JUSTOP brand may appeal more to those prioritising cost over brand loyalty.

Which should you buy?

Choosing between the JUSTOP Black 750W PSU and the CORSAIR RM750e ultimately depends on your specific needs and budget. If you are looking for a cost-effective power supply that offers essential features for a standard desktop build, the JUSTOP Black 750W PSU is a suitable option at £32.95. However, if you are investing in a high-performance system and need a reliable, efficient, and modular power supply with advanced safety features, the CORSAIR RM750e is worth the higher price of £81.99. Consider your requirements carefully to make the best choice for your setup.