Overview

The Corsair HX1500i (2023) is a flagship power supply released in 2023, offering 1500W of continuous power with an 80 PLUS Platinum certification that guarantees up to 92% efficiency. It fully complies with the Intel ATX 3.0 standard and is ready for next-gen PCIe 5.0 platforms. The fully modular cable design allows you to connect only the cables you need, greatly simplifying cable management in high-end builds. This PSU is primarily aimed at enthusiasts running multiple high-power GPUs, overclocked CPUs, or demanding professional workstations.
At its heart is a 140mm fluid dynamic bearing (FDB) fan that supports semi-passive operation, keeping the unit silent under low to moderate loads. The Corsair iCUE software suite enables fine-grained monitoring and control: you can adjust the fan curve, switch between single and multi-rail overcurrent protection (OCP), and track power draw in real time. With a 10-year warranty and robust build quality, the HX1500i is built to last through multiple system upgrades.
In terms of market positioning, the HX1500i sits firmly in the high-end tier. It competes directly with the be quiet! Dark Power Pro 13 1600W and Seasonic Prime TX-1600, but stands out with its iCUE integration and slightly higher 1500W continuous rating.

Compatibility Guide

  • Form factor: Standard ATX (150x150x200mm). Ensure your case has at least 200mm of PSU depth clearance. Most mid-tower and full-tower cases will fit, but compact cases likely won't.
  • Connectors: 1x 24-pin ATX, 2x 4+4-pin EPS, 6x 6+2-pin PCIe, 1x 12+4-pin 12VHPWR (rated for 550W), 16x SATA, 8x peripheral (Molex). Supports all current graphics cards including RTX 40/50 series and Radeon RX 7000/8000 series.
  • ATX 3.0 certification means it can handle transient power spikes from modern GPUs without tripping protection circuits. Also includes native 12VHPWR for PCIe 5.0.
  • Recommended for systems with at least 850W load potential; for single-GPU builds, a lower-wattage unit is usually more cost-effective.

Product Info

  • Release: Mid-2023.
  • Warranty: 10 years, covering defects and performance.
  • Rated wattage: 1500W continuous, with a single +12V rail capable of 1500W (125A).
  • Efficiency: 80 PLUS Platinum (92% at 50% load, 115V).
  • Cooling: 140mm FDB fan with Zero RPM mode (fan stops under light loads).
  • Modular: Fully modular; all cables are detachable.
  • Software: iCUE compatible for monitoring and customization.
  • Dimensions: 150 x 150 x 200 mm.
    This PSU is unequivocally high-end, designed for users who need maximum headroom and the highest reliability. Its 1500W capacity is overkill for most, but for multi-GPU setups or extreme overclocking, it’s a future-proof choice.

Best Use Cases

  • Multi-GPU gaming rig – For users running two or more top-tier GPUs (RTX 4090 SLI, RTX 5090 dual). The 1500W capacity handles peak power spikes and constant full-load demands with ease. Not recommended for single-GPU systems where a 1000W unit would be more economical.
  • Professional workstation – Content creators and engineers who render or simulate for hours at a time need stable power. The HX1500i’s high efficiency reduces heat output and ensures long-term reliability under sustained loads.
  • Future-proof enthusiast build – Builders who plan to upgrade components over several years will benefit from the 10-year warranty and ample headroom. If you expect to eventually add a second GPU or a power-hungry CPU, this PSU can grow with you.
  • Who should avoid it – Gamers with a single mid-range GPU and no plans for expansion. You’d be spending extra money for unused capacity; a 750W–850W unit will serve you better.

Things to Consider

  • Overhead: For a single-GPU system, 1500W is overkill. You might pay twice as much as a 850W unit for no real benefit. Evaluate your actual power needs first.
  • Case clearance: The 200mm depth requires a roomy case. Always check your PSU compartment dimensions before buying.
  • 12VHPWR cable handling: The included cable is adequately flexible, but avoid sharp bends near the connector. Corsair recommends a minimum bend radius of 35mm.
  • iCUE dependency: If you want full control (fan curve, OCP mode), you need to connect the USB cable to a motherboard header. Without it, the PSU runs in default mode (fine for most users).
  • Competitors: The be quiet! Dark Power Pro 13 1600W offers a similar feature set with a slightly different fan curve; Seasonic Prime TX-1600 has a 1600W option. The HX1500i’s iCUE integration is its key differentiator.

FAQ

Q: Can the HX1500i power an Intel Core i9-14900K and an RTX 5090?
A: Absolutely. Combined peak draw under heavy load might reach 900–1100W, which leaves generous headroom for transient spikes. The ATX 3.0 compliance ensures stable operation.
Q: Is the 140mm fan loud under full load?
A: The FDB fan is very quiet even at maximum RPM (rumored around 40 dBA). iCUE allows you to fine-tune the fan curve to prioritize silence. Many u

Product Disclosure (Amazon)

  • Manufacturer: CORSAIR
  • Seller: 入船商会四条(全国送料無料)
  • Fulfilled by: 入船商会四条(全国送料無料)
  • ASIN: B0BZ1JPSF7
  • Note: This article covers a manufacturer-made product based on Amazon listing details.