Corsair CP-9020259-NA HX1000i 1000W 80+ Platinum ATX 3.0 PSU

The Corsair HX1000i is built for enthusiasts and professionals who demand clean, efficient, and quiet power delivery for high-performance systems. Rated at 80 PLUS Platinum, it converts power at 92% efficiency or better at typical loads, reducing electricity costs and heat output compared to lower-tier units. The ATX 3.1 certification and PCIe Gen 5.1 compliance ensure it meets the latest power delivery standards, making it ready for current and upcoming high-end graphics cards that can generate significant transient power spikes.

What distinguishes the HX1000i from standard power supplies is its 140mm fluid dynamic bearing fan with Zero RPM mode, which stops the fan entirely under low and moderate loads for completely silent operation. When cooling is needed, the FDB fan delivers long-lasting, low-noise performance. Corsair's iCUE software integration takes control further by allowing real-time power monitoring, custom fan curve creation, and on-the-fly switching between single-rail and multi-rail overcurrent protection. Combined with fully modular cabling that keeps builds tidy, the HX1000i delivers a level of refinement and control that justifies its position at the top of Corsair's power supply lineup.