Description
Core specifications
The Corsair HXi Series HX1500i is a high-performance, fully modular, 1500-watt power supply designed for demanding, high-end PC builds, including those with overclocked CPUs and next-generation GPUs. The latest version, updated in 2025, is compliant with the ATX 3.1 and PCIe 5.1 standards.
Continuous power: 1500 Watts.
Efficiency certification: 80 PLUS Platinum and Cybenetics Platinum certified, offering up to 92% efficiency for lower power consumption, reduced heat, and quieter operation.
Form factor: ATX, with a fully modular design that allows for clean builds by connecting only the necessary cables.
Dimensions: 200mm (L) x 150mm (W) x 86mm (H). Its length is larger than many standard PSUs.
Fan: A 140mm fluid dynamic bearing (FDB) fan delivers quiet and long-lasting performance. It features a Zero RPM fan mode for near-silent operation at low and medium loads.
Capacitors: Constructed with 100% industrial-grade, 105°C-rated Japanese electrolytic capacitors for high-quality power delivery, reliability, and long-term durability.
Durability and protection: A Mean Time Between Failures (MTBF) of 100,000 hours and a comprehensive suite of safety features, including OVP, OCP, OTP, SCP, OPP, and UVP.
Modern connectivity and features
ATX 3.1 and PCIe 5.1 compliant: This certification ensures high reliability, power efficiency, and compatibility with modern PC hardware.
Dual 12V-2×6 cables: Unlike the 12VHPWR cables on older ATX 3.0 PSUs, the 2025 HX1500i has two of the newer 12V-2×6 cables (650mm, flat) for the latest high-end GPUs, providing up to 600W each.
iCUE software integration: The digital platform allows for real-time monitoring and customization via Corsair’s iCUE software. Features include adjusting fan curves, monitoring power settings, and switching between single or multi-rail Over-Current Protection (OCP).
Windows Modern Standby support: This feature enables faster wake-from-sleep times and improves efficiency during low-load states
The fully modular design includes a wide array of flat, black cables for all your PC’s power needs:
1x ATX 24-Pin (sleeved)
2x EPS/ATX12V 8-Pin (4+4)
2x 12V-2×6 (12+4 pin) PCIe 5.1 GPU cable (650mm length)
3x PCIe 8-Pin (6+2) single connector cables
2x Dual PCIe 8-Pin (6+2/6+2) cables
2x SATA (4 SATA connectors per cable)
2x PATA (4-pin) (4 connectors per cable)
1x USB Type-C to 10-1 Pin (for iCUE)
Performance overview
Excellent electrical performance: The digital platform ensures clean and consistent power delivery with minimal coil whine.
Quiet operation: The Zero RPM fan mode and high efficiency mean the fan often remains off under low to moderate loads. Even under heavy load, the fan is not overly intrusive.
Stable under heavy load: Tested to deliver well over its 1500W rating before safely shutting down, proving its ability to handle powerful and demanding systems
