JUSTOP Black 750W PSU vs CORSAIR RM1000e

Overview of the JUSTOP Black 750W PSU and CORSAIR RM1000e

When comparing the JUSTOP Black 750W PSU and the CORSAIR RM1000e, it is evident that these power supplies cater to different needs and budgets. The JUSTOP Black 750W PSU is priced at £32.95, making it an affordable option for those seeking a reliable power supply. In contrast, the CORSAIR RM1000e is significantly more expensive at £149.88, reflecting its advanced features and certifications. Both units are designed to provide stable power output, but they differ in their capabilities and intended usage scenarios.

Power Output and Efficiency

The JUSTOP Black 750W PSU offers a robust power output of 750W, which is generally sufficient for most mid-range gaming and productivity setups. It features a single 8-pin (4+4 pin) 12V rail, providing enhanced stability and safety during operation. The power factor control (PFC) ensures efficient power usage, which is essential for energy-conscious users. On the other hand, the CORSAIR RM1000e is a fully modular power supply that supports up to 1000W, allowing for greater flexibility and scalability in high-performance systems. Its Intel ATX 3.1 certification further guarantees compliance with modern power standards, supporting transient power excursions from high-demand components like GPUs.

Modular Design vs. Fixed Cabling

One of the standout features of the CORSAIR RM1000e is its fully modular design, which allows users to connect only the cables necessary for their specific system build. This not only simplifies the installation process but also enhances airflow within the case by reducing cable clutter. In contrast, the JUSTOP Black 750W PSU has a fixed cable setup, which may complicate installation and potentially restrict airflow. This difference makes the CORSAIR RM1000e more suitable for users who prioritise aesthetics and optimal cooling in their builds, while the JUSTOP option may appeal to those on a tighter budget.

Noise Levels and Cooling

The cooling capabilities of both power supplies are noteworthy, albeit in different ways. The JUSTOP Black 750W PSU is equipped with a 120mm cooling fan, which is standard for power supplies in its category. However, it lacks any specific noise reduction features. Meanwhile, the CORSAIR RM1000e also features a 120mm rifle bearing fan, designed to operate quietly even under full load. The specially calculated fan curve of the CORSAIR model helps to maintain low noise levels, making it an excellent choice for users who seek a quieter computing experience. This focus on noise reduction may justify the higher price point of the CORSAIR RM1000e for some consumers.

Protection Features

Both power supplies come with essential protection features, although the extent and certification levels vary. The JUSTOP Black 750W PSU includes over voltage protection, over power protection, short circuit protection, and thermal overload cut-off protection, ensuring a degree of safety during operation. It is also certified by several safety agencies, including UKCA, CE, FCC, UL, and TUV, giving consumers confidence in its reliability. The CORSAIR RM1000e, while also equipped with protection features, benefits from 105°C-rated capacitors, which contribute to its overall reliability and performance under demanding conditions. This added assurance of quality may appeal to users investing in high-end components.

Compatibility and Connectivity

In terms of connectivity, the JUSTOP Black 750W PSU offers a variety of connectors, including a 24-pin (20+4) connector, an 8-pin (4+4) 12V connector, six SATA connectors, a 4-pin Molex connector, and an 8-pin PCI-E connector. This selection caters well to standard desktop builds. Conversely, the CORSAIR RM1000e, being a fully modular unit, allows for a more tailored selection of cables, accommodating modern builds that may require specific configurations. Its compliance with the ATX 3.1 standard means it is also future-proofed for upcoming technologies, making it a better long-term investment for tech enthusiasts.

Brand Reputation and Support

When considering brand reputation, Corsair is widely recognised for its quality and innovation in the gaming and PC building community. The CORSAIR RM1000e benefits from this strong brand identity, with many users trusting Corsair for high-performance components. JUSTOP, while a reputable brand, does not carry the same level of recognition as Corsair in the high-performance market. This difference may influence buyers, particularly those who prioritise brand reliability and customer support. Corsair is known for its robust customer service and support, which can be a significant factor for consumers investing in premium products.

Which should you buy?

The decision between the JUSTOP Black 750W PSU and the CORSAIR RM1000e ultimately depends on your specific needs and budget. If you are looking for an economical option for a standard desktop setup, the JUSTOP Black 750W PSU offers reliable performance at an attractive price of £32.95. However, for those seeking advanced features, modularity, and superior performance for high-end builds, the CORSAIR RM1000e, priced at £149.88, is the clear choice. Its fully modular design, quieter operation, and compliance with modern standards make it a worthwhile investment for serious gamers and PC builders.