Power supply unit CORSAIR HX1200 1200 W ATX 24-pin fully-modular 80 PLUS Platinum black 14 cm fan

CORSAIR HXi Series power supplies deliver stable, high-efficiency power for modern PCs and next‑generation GPUs. Designed for reliability and compatibility, these fully modular units include dual 12V-2x6 GPU cables, Cybenetics Platinum efficiency certification, and ATX 3.1 compliance to meet the demands of high-end graphics cards and processors.

Advantages

HXi units provide consistent output with up to 90% efficiency and reduced noise and heat thanks to Cybenetics Platinum certification. Fully modular cabling and dual-color PCIe 5.1 connectors simplify installation and ensure secure GPU connections. Zero RPM mode and a fluid dynamic bearing fan reduce acoustic impact at low to medium loads. All electrolytic capacitors are industrial-grade Japanese components for enhanced longevity.

Key specifications

• Wattage: 1200 W
• Input voltage/frequency: 100 - 240 V, 47 - 63 Hz
• Efficiency/certification: Cybenetics Platinum, 80 PLUS Platinum
• ATX standard: Intel® ATX 3.1 certified
• PCIe compatibility: PCIe 5.1 compatible, dual 12V-2x6 GPU cables with dual-color connectors
• Motherboard connector: 24-pin ATX
• Cooling: 140 mm fluid dynamic bearing fan with Zero RPM mode
• Capacitors: 100% Japanese electrolytic, 105°C rated
• Color: Black

How to use

Install the HXi power supply in a compatible PC case, connect the 24-pin ATX cable to the motherboard and use the modular cables to attach CPU and GPU power connectors as required. Use the dual 12V-2x6 PCIe cables for compatible next‑gen graphics cards, ensuring the dual-color connectors align and click for a secure fit. Connect the unit to mains power within the specified voltage range and power on the system.

Recommendations

Monitor power supply performance and configure single-rail or multi-rail mode, as well as fan behavior, using CORSAIR iCUE software. Verify your GPU and motherboard compatibility with PCIe 5.1 and ATX 3.1 standards before upgrading. Ensure adequate case airflow and use recommended cable routing to maintain optimal temperatures and long component life.