Promising increased power stability at low noise levels, Arctic Cooling's Fusion 550R also takes a step beyond 80-Plus efficiency with a new standard: Eco 80.

Arctic Cooling's efforts result in a claimed 82-86% efficiency range using 99% Power Factor Correction, exceeding the 80-plus minimums of 80% and 90% respectively. Increased efficiency also allows lower fan speeds for reduced noise, which is further assisted via a blow-through exhaust fan mounted inside the case and rubber grommets which isolate vibration.

Rated at 550 Watts peak and 500 Watts continuous load capacity, the Fusion 550R supports up to 408 Watts combined output from its two 17 Amp 12 Volt rails.