Power supply Corsair SF1000 (2024) 1000W 80 Plus Platinum, ATX 3.1, PCIe 5.1 ITX PSU - CP-9020257-EU

This Corsair SF1000 (2024) is an SFX power supply with 1000W power and 80+ Platinum certification, aimed at high-end ITX and compact builds where space is limited but the hardware is power-hungry. You get a PSU with ATX 3.0/3.1 and PCIe Gen 5.0/5.1 support, ready for modern graphics cards. The modular design helps you organize the cables neatly even in the smallest case. The combination of high efficiency and compact size makes it a logical choice for powerful yet quiet systems.

What you get
With real 1000W and a separate 16-pin PCIe 5.1 12V-2x6 connector with up to 450W power for the GPU, you can comfortably power current graphics cards in a small ITX case. 80+ Platinum efficiency (up to 92%) means less loss as heat and more stable operation under heavy load. The 92mm PWM fan with Zero RPM mode keeps the system quiet under low to medium load, spinning up only when it really needs to. Thanks to the modular design, you connect only the necessary cables – important in SFX format, where every centimeter inside the case matters. Active PFC ensures the power supply operates stably in the range 100 – 240 VAC, whether you are on a home or office network.

• SFX format with dimensions 100 x 125 x 63.5 mm and a length of 125 mm, making it suitable for compact ITX and other small cases.
• Rated power 1000W and outputs DC 3.3/5/±12 V to power powerful CPU and GPU configurations.
• Certification 80+ Platinum with efficiency up to 92%, which reduces energy loss and heat in the case.
• Full modularity (modular power supply unit), allowing for cleaner cabling and better airflow.
• Compatibility with ATX 3.0/3.1 and PCIe Gen 5.0/5.1, including 1 x 16-pin PCIe 5.1 12V-2x6 connector with up to 450W for modern graphics cards.
• A rich set of connectors: 1 x 20/24-pin, 2 x 4/8-pin ATX12V, 4 x 6/8-pin PCIe, 8 x SATA and 3 x IDE for various configurations and storage.
• 92mm PWM fan with Zero RPM mode for silent operation under low load and smarter cooling.
• Active PFC and input voltage 100 – 240 VAC for stable operation in various electrical networks.
• Long warranty of 120 months, which speaks to confidence in the reliability of the component.

Who it is suitable for
If you are building a compact yet very powerful ITX or SFF system with a modern high-end GPU and want a PSU that is both efficient, quiet, and future-oriented, this power supply fits well. It is rather overkill for budget or office configurations where 1000W and PCIe 5.1 simply will not be fully utilized.

The combination of SFX format, 1000W power, 80+ Platinum efficiency, and ATX 3.1 / PCIe 5.1 support makes it a particularly sensible choice for serious compact builds where you do not want to compromise on either power or noise.