Corsair HX1000i 1000W ATX 3.0 power supply

Fully Modular ATX 3.0 Power Supply

The Corsair HX1000i is a 1000W ATX 3.0 power supply built for high-end desktop systems. Its fully modular cabling lets builders connect only the cables required, simplifying cable management and improving airflow inside the case. It targets enthusiasts who need reliable power for modern components and value software monitoring. It is not suited for compact builds that require SFX form factors or lower-wattage units.

1000W Capacity With Platinum Efficiency

Rated at 1000W, the unit delivers ample headroom for multi-GPU configurations and overclocked CPUs while maintaining 80 PLUS Platinum efficiency up to 92%. The fully digital platform with resonant LLC topology and DC-to-DC conversion provides clean power and minimises coil whine. Transient spike resistance meets the ATX 3.0 standard for PCIe Gen 5 platforms. Systems with modest power demands will not utilise the full capacity.

140mm FDB Fan And iCUE Control

A 140mm fluid dynamic bearing fan enables Zero RPM mode, stopping completely at low and medium loads for near-silent operation. CORSAIR iCUE software allows custom fan curves, power monitoring, and on-the-fly switching between single and multi-rail overcurrent protection. Industrial-grade 105°C Japanese electrolytic capacitors back long-term reliability. Modern Standby support ensures fast wake times. Builders who prefer hardware-only control may find the software dependency unnecessary.