Corsair

Corsair CP-9020261-NA HX1500i 1500W 80+ Platinum ATX 3.0 PSU

4.6 (271 reviews)

Corsair's flagship 1500W platinum-rated PSU delivers ultra-quiet, fully modular power with ATX 3.1 compliance and iCUE software control.

$349.00*$399.99Save 12%
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*Price sourced from Amazon.com. Last updated:Jun 16, 2026.Price and availability are subject to change.

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Overview

The Corsair HX1500i is a fully modular 1500W power supply engineered for the most demanding PC builds. Certified at 80 Plus Platinum efficiency, it converts power with minimal waste — translating to lower electricity costs and reduced heat generation inside your chassis. The ATX 3.1 certification ensures full compliance with the latest power delivery standards, including native support for PCIe Gen 5.1 graphics cards and their notorious transient power spikes that can trip lesser power supplies. This makes the HX1500i a future-proof foundation for systems running flagship GPUs and high-core-count processors under heavy sustained loads.

Acoustic performance is a defining characteristic of the HX1500i. Its 140mm fluid dynamic bearing fan is engineered for longevity and quiet operation, and at low-to-medium loads, the Zero RPM mode stops the fan entirely for completely silent power delivery. When the fan does spin up, its FDB design ensures smooth, long-lasting operation without the bearing noise that plagues lesser units. Integration with Corsair's iCUE software — connected via an internal USB header — unlocks real-time monitoring of wattage, voltage, and temperature, along with the ability to create custom fan curves and toggle between single-rail and multi-rail overcurrent protection depending on your system configuration. The fully modular cable design means you only route the cables your components need, keeping airflow unobstructed and builds looking clean.

Key Features

Fully Modular Cabling: Connect only the cables your system needs, making clean and tidy builds easy.

Intel ATX 3.1 Certified: Compliant with the ATX 3.1 power standard, supporting the PCIe Gen 5.1 platform and resisting transient power spikes.

140mm Fluid Dynamic Bearing (FDB) Fan: Delivers extremely quiet and long-lasting fan performance

Powerful CORSAIR iCUE Software: Create custom fan curves, monitor power settings, and toggle between single to multi-rail overcurrent protection (OCP) on-the-fly.

Zero RPM Fan Mode: At low and medium loads the cooling fan switches off entirely for near-silent operation.

Specifications

Model
CP-9020261-NA (HX1500i)
Wattage
1500W
Efficiency
80 Plus Platinum
Certification
Intel ATX 3.1
Modularity
Fully Modular
Fan
140mm Fluid Dynamic Bearing (FDB)
Fan Mode
Zero RPM at low/medium loads
Software
Corsair iCUE Compatible
PCIe Support
PCIe Gen 5.1
Dimensions
7.87 x 5.91 x 3.39 inches

Pros & Cons

👍 Pros

  • 80 Plus Platinum efficiency minimizes wasted energy and reduces heat output across all load levels.
  • Zero RPM fan mode delivers near-silent operation during typical desktop and gaming workloads.
  • Fully modular cabling keeps builds clean by allowing you to connect only the cables your system requires.
  • iCUE software integration enables real-time power monitoring, custom fan curves, and switchable OCP modes.
  • ATX 3.1 certification with native PCIe Gen 5.1 support handles transient GPU power spikes without issues.

👎 Cons

  • Premium pricing places it well above budget and gold-rated alternatives with similar wattage.
  • 1500W capacity is overkill for most single-GPU gaming builds, meaning many users will never utilize its full potential.
  • iCUE software requires a USB header connection to the motherboard, adding an extra internal cable.
  • Physical dimensions of 7.87 x 5.91 x 3.39 inches may be tight in compact or mid-tower cases.

Frequently Asked Questions

Yes. As an ATX 3.1 certified power supply, the HX1500i includes a PCIe Gen 5.1 compatible 12V-2x6 connector designed to handle the transient power spikes of current high-end graphics cards without requiring adapters.
At low and medium power loads, the 140mm fan stops spinning completely, resulting in near-silent operation. The fan only activates when the PSU reaches higher loads or temperatures, and you can customize the fan curve behavior through Corsair's iCUE software.
iCUE lets you monitor real-time power draw, voltage levels, and internal temperatures. You can also create custom fan curves and toggle between single-rail and multi-rail overcurrent protection modes on the fly.
With 1500W of continuous power at 80 Plus Platinum efficiency, the HX1500i provides ample headroom for builds with a flagship GPU and a high-core-count processor, as well as workstation configurations with heavy sustained loads.
Corsair backs the HXi series with their confidence in long-term reliability. The fully modular cable design also means only the cables you need are connected, reducing clutter and improving airflow in your case.