80 PLUS Gold certified for lower power consumption, less noise and cooler temperatures. Tuned for low noise operation even at full load. Zero RPM fan mode for near-silent operation at low to medium loads. 100% industrial-grade, 105?C rated Japanese capacitors ensure unwavering power and reliability. Fully modular cables, so you only connect the cables your system needs Compact 160mm size for easier builds. (RM550x, RM650x, RM750x, RM850x) Compact 180mm size for easier builds, (RM1000x) Ten-year warranty for complete peace of mind.