Very quiet and extremely efficient (high efficiency). Corsair AX1600i is an unrivaled digital ATX power supply unit, created only from the best components and the most advanced transistors based on gallium nitride, which guarantees an efficiency ratio of not less than 94%. The world’s best power supply just got even better. CORSAIR AX1600i is the ultimate digital ATX power supply, created with only the best components and the most advanced transistors based on gallium nitride, which guarantees an efficiency ratio of no less than 94%. Incredible power of 1600 W. Provides 1600 W of constant, ultra-stable, efficient power – confirmed by the 80 PLUS Titanium certificate.