80 plus Gold certified: high efficiency operation for lower power consumption, less noise and cooler temperatures. Tuned for low noise operation: a 140mm rifle Bearing fan with a specially calculated fan curve ensures that fan noise is kept to minimum, even at full load. 105°C-rated capacitors: industrial-grade capacitors deliver solid electrical performance and reliability. MTBF hours – 100,000 hours. Microsoft modern standby compatible: extremely fast wake-from-sleep times and better low-load efficiency. Zero RPM fan mode: at low and medium loads The cooling fan switches off entirely for near-silent operation.