Best Computer Power Supplies of 2025

The CORSAIR RM1000x PSU is a fully modular power supply that allows you to connect only the cables your system requires, enhancing organisation and airflow. With Cybenetics Gold certification, it boasts an efficiency rating of up to 91%, which means lower power consumption and reduced noise levels, keeping your system cooler. Being ATX 3.1 compliant, it supports PCIe 5.1 and effectively resists transient power spikes, ensuring stable performance. Additionally, its native 12V-2x6 connector offers direct compatibility with the latest graphics cards, eliminating the need for adapters.

The Corsair RM1000e is a fully modular power supply designed to provide reliable and low-noise performance for your computer. Its fully modular cabling allows you to connect only the cables you need, making installation easier and reducing clutter. Certified with Intel's ATX 3.0 standard, it supports the latest PCIe Gen 5 platform and efficiently manages power spikes. The 120mm rifle bearing fan ensures quiet operation, keeping noise levels low even under full load, enhancing your overall computing experience.

The CORSAIR CX750 Power Supply offers impressive efficiency with its 80 PLUS Bronze certification, ensuring up to 88% operational efficiency. This means you can enjoy lower energy costs while generating less heat. With full continuous power, you can rely on this unit to deliver its rated wattage, perfect for demanding tasks. Additionally, the low-noise cooling system features a 120mm fan that operates quietly during light loads, enhancing your PC's overall performance without the distracting noise.

The Noctua PRIME TX-1600 is an ultra-quiet power supply designed for high-performance workstations and gaming PCs. With its renowned Noctua NF-A12x25 fan, you can enjoy significantly reduced noise levels, making it perfect for quiet environments. The semi-passive operation ensures that the fan remains off until your system reaches 50% load, providing virtually silent performance. Being ATX 3.1 and PCIe 5.1 compliant, this power supply safely powers high-end graphics cards, allowing you to build a powerful system without worry.

The MSI MAG A850GL is an 850W power supply unit that offers impressive efficiency with its 80 PLUS Gold certification, ensuring that your system consumes less energy and generates less heat. With its ATX 3.0 fully modular design, you can enjoy a tidy setup, as it allows you to use only the cables you need. It also supports PCIe 5.0 GPUs, delivering up to 600W of power to your graphics card for high performance. Additionally, the stable performance from its 120 mm FDB fan and high-quality capacitors means you can rely on this power supply during demanding tasks.

The CORSAIR SF750 Power Supply is a highly efficient, fully modular SFX power supply, perfect for compact builds or larger cases. With its 80 PLUS Platinum rating, it delivers significant power while saving space. Being ATX 3.1 compliant and PCIe 5.1 ready, it supports the latest technology and helps manage transient power spikes, ensuring stable performance. The fully modular design allows for tidy cable management, making installation easier and more organised for you.

The Corsair RM1200x SHIFT offers a fully modular design, allowing you to connect only the cables your system requires. This feature helps in reducing clutter and improving airflow within your case. It is also Intel ATX 3.0 certified, ensuring compatibility with the latest PCIe Gen 5 platforms and effectively managing power spikes. The Zero RPM fan mode provides a near-silent operation during low and medium loads, enhancing your system's quiet performance. Additionally, the 105°C-rated capacitors ensure long-lasting reliability and stable power delivery for your components.

The CORSAIR HX1200i is a fully modular power supply that simplifies your build by allowing you to connect only the cables your system requires. It is Intel ATX 3.0 certified, ensuring compatibility with the latest PCIe Gen 5 platform and efficiently handling power spikes. The 140mm Fluid Dynamic Bearing fan guarantees whisper-quiet operation, contributing to a more serene computing environment. Additionally, the powerful CORSAIR iCUE software lets you create custom fan curves, giving you control over cooling performance to suit your preferences.

The Corsair 600W Cable is designed to power advanced PCIe 5.0 graphics cards with a TDP of up to 600W. Its flexible triple-layer mesh paracord sleeving not only enhances the aesthetic of your build but also provides durability. With pre-installed connectors, you can enjoy a hassle-free setup while keeping your build neat and tidy. This cable fits all PCIe 5.0 GPUs featuring a 12+4pin connector, eliminating the need for adapters and simplifying your installation process.

The NZXT C1200 PSU delivers impressive performance with its ability to supply up to 600 watts to PCIe 5.0 GPUs, ensuring your high-end graphics card operates efficiently. Its future-proof design accommodates massive power spikes, making it perfect for demanding gaming sessions. With over 90% efficiency at a 50% load, you can reduce energy costs while extending the lifespan of your PC. Additionally, the silent operation feature allows you to enjoy your gaming experience without the distraction of noise, as the fan operates quietly or shuts off entirely when under low load.