Corsair HX1500i 1500W 80 Plus Platinum ATX 3.1 PSU

The Corsair HX1500i is a fully modular 1500W ATX 3.1 compliant power supply built to the 80 Plus Platinum efficiency standard, delivering up to 92% efficiency under typical load conditions. Engineered around a single +12V rail topology, it provides a continuous 1500W output across that rail, ensuring clean, stable power delivery to the most demanding multi-GPU and high-core-count processor configurations. The unit incorporates a native 12V-2x6 (PCIe 5.1) connector, eliminating the need for adapters when powering Ada Lovelace, RDNA 3, or later-generation graphics accelerators that draw sustained transient loads exceeding 600W.

The HX1500i integrates Corsair's iCUE digital monitoring and control ecosystem via a USB Type-A internal header, exposing real-time telemetry for input voltage, output wattage, efficiency percentage, temperature, and fan RPM directly within enterprise monitoring dashboards or workstation management software. A zero-RPM fan mode engages at low-to-moderate loads, reducing acoustic output in open-plan or noise-sensitive environments, while the 135mm rifle-bearing fan scales dynamically under sustained high-load operation. The fully modular cable architecture supports clean cable routing in large tower and rackmount workstation chassis, and the unit ships with a comprehensive set of peripheral, SATA, and EPS connectors suited to dense component configurations.

Designed for professional workstation builds requiring long-duration stability under variable and spike-heavy GPU power draw profiles—such as those generated by modern AI inference accelerators and real-time rendering workloads—the HX1500i meets the ATX 3.1 specification's transient load response requirements, sustaining up to 200% of rated power for defined short-duration excursion events. Its Platinum-tier efficiency reduces heat rejection into the chassis and lowers aggregate facility power draw compared to Gold-rated equivalents at equivalent output levels, making it a practical choice for thermally constrained workstation deployments.

Ideal for

• High-performance AI/ML workstation builds pairing dual or single high-TDP GPU accelerators (e.g., NVIDIA RTX 4090 or AMD RX 7900 XTX class) requiring ATX 3.1 transient headroom
• 3D rendering and visual effects workstations running sustained GPU compute loads over extended production cycles where stable single-rail +12V delivery is critical
• Scientific simulation and data processing workstations combining high-core-count CPUs with multiple NVMe storage arrays and high-TDP discrete GPUs
• Enterprise CAD/CAM and digital twin workstations where iCUE telemetry integration enables power consumption auditing and thermal trend logging
• Overclocked or BIOS-unlocked professional workstation platforms where ATX 3.1 transient compliance prevents nuisance shutdowns during GPU boost excursions
• Broadcast, video production, and real-time compositing systems demanding reliable, low-noise power delivery across extended unattended render sessions

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.