The Corsair HXi Series HX1200i is a premium 1200W fully modular ATX power supply designed for high-performance PC builds requiring exceptional efficiency, reliability, and ultra-low noise operation.

With its 80 PLUS Platinum certification, this power supply can achieve up to 92% energy efficiency under typical loads, significantly reducing power waste and heat. The ultra-quiet performance is enhanced by a Zero RPM fan mode, which keeps the fan off during low to medium loads. When needed, a thermally controlled 140mm fluid dynamic bearing fan ensures minimal noise and longevity.

Constructed with 100% Japanese 105°C electrolytic capacitors, renowned for their industrial-grade quality and durability, the HX1200i is backed by a 10-year manufacturer warranty. It features tight voltage regulation for stable power delivery to critical components and low electronic noise, combating coil whine and disturbances often encountered in high-end builds.

Supporting the latest standards, the HX1200i is ATX 3.1 certified and compliant with PCIe 5.1 for modern GPUs and CPUs. Its extensive compatibility is enabled by diverse connectors, including:

• 1x 24-pin ATX
• 2x EPS/ATX12V (8-pin)
• 5x PCIe 8-pin (6+2)
• 6x PATA
• 8x SATA

In terms of electrical specifications, it offers:

• +3.3V output: 25A (max 150W)
• +5V output: 25A
• +12V rail: Single 100A rail delivering full 1200W
• +5VSB: 3A (15W)
• Input voltage range: 100–240V AC, 47–63Hz frequency

The power supply also supports Modern Standby sleep mode for quick wake times and energy savings, along with software integration via Corsair iCUE for real-time monitoring and fan speed control.

Measuring approximately 150mm (W) x 200mm (L) x 86mm (H) and weighing around 4.84 kg, its fully modular design allows for clean cable management tailored to system needs, enhancing airflow and aesthetics.