CORSAIR HX1200i 1200W 80 + Platinum Fully Modular ATX 2.0 Power Supply

The Corsair HX1200i is a 1200-watt fully modular ATX power supply designed for high-performance desktop systems that demand clean, stable, and efficient power delivery. Holding an 80 PLUS Platinum certification, it achieves up to 92% efficiency under typical loads, reducing heat output and keeping operating costs low. The unit is formally certified for ATX 3.1 compliance and carries PCIe 5.1 certification, with a PCIe 5.1 12V-2x6 GPU cable included for modern graphics cards such as the NVIDIA GeForce RTX 40 Series. Compatibility extends to AMD Ryzen 7000 series platforms as well, making it a strong choice for current-generation builds. Quiet operation is central to the HXi design. A 140 mm fluid dynamic bearing fan combined with Zero RPM mode means the fan stops entirely at low and medium loads, resulting in near-silent running during everyday tasks and light gaming. When the fan does spin, its fluid dynamic bearing construction ensures long-lasting, smooth performance. As a fully digital power supply, the HX1200i minimises coil whine and delivers consistent, clean power across all rails. Users can toggle between single-rail and multi-rail 12V modes and monitor real-time power data through Corsair iCUE software. Modern Standby sleep mode support enables extremely fast wake- sleep times alongside efficient low-load operation. Build quality is underpinned by 100% Japanese electrolytic capacitors rated at 105°C, ensuring thermal headroom and long-term reliability. The unit carries a 10-year warranty and an MTBF rating of 100,000 hours. Low-profile, all-black fully modular cabling keeps the interior clean and airflow unobstructed. Verified Specifications: - Continuous Power Output: 1,200 W (rated at 50°C continuous) - Efficiency Rating: 80 PLUS Platinum (up to 92%) - Certification: ATX 3.1 & PCIe 5.1 - ATX12V Version: v2.4 - Form Factor: ATX (150 mm × 86 mm × 200 mm) - Fan: 140 mm Fluid Dynamic Bearing, Zero RPM mode - Capacitors: 100% Japanese, 105°C-rated electrolytic - Modular: Fully modular, low-profile all-black cables - Connectors: 1× ATX, 2× EPS, 8× PCIe, 12× SATA, 2× Floppy - 12V Rails: Switchable single/multi-rail via iCUE - iCUE / Corsair Link: Supported - MTBF: 100,000 hours - Warranty: 10 years - Plug Type: UK