Rigid Reliability, Extreme Silence COUGAR STC series is a decent PSU with 230V EU Standard efficiency certified with flawless power delivery. Built by reliability and low acoustic sound, it is the nicest choice for building up the PC system. Power Conversion Efficiency Up to 86% efficiency under 230V. A guaranteed highly reliable power supply. Active Power Factor Correction High power conversion efficiency. PF value up to 99%, provides clean and reliable power 120mm Extreme Temperature Control Using COUGAR’s exclusive 120mm silent fan, the advanced frame increase the concentration of air-flow and its fan curvature has been fine-tuned to reduce vibration at any loads, helping you enjoy a quieter gaming experience. Assigned Japanese Components STC includes 105°C Japanese standby capacitor will keep providing the stable PSU for a long time. The Japanese polypropylene capacitor minimize the noise during the voltage transition. Active Power Factor Correction (Active PFC) PFC value up to 99%, provides clean and reliable power. Compatible with the Newest Components Created for use with multi-core CPU and PCI express 3.0 graphics cards with 8(6+2) pin PCI-e connector. Superior Fan Curve Tuning Advanced technology for noise minimization 105°C Japanese Standby Capacitors Reliable and durable components that extend the PSU’s useful life. Strong Safeguards : OCP, OPP, OVP, UVP & SCP Maximum safety for your key system components Protection UVP (Under Voltage Protection) If the voltages fall below a certain tolerance value on the single lines, the PSU automatically switches off. OVP (Over Voltage Protection) If the voltages increase above a certain tolerance value on the single lines, the PSU automatically switches off. SCP (Short-Circuit Protection) In the case of a short-circuit, this feature prevents damage to the core components of the PSU and its System components. OPP (Over Power Protection) If the system is oversized and requires more power from the PSU than it can provide, this protection function is activated. OCP (Overcurrent Protection) If the current on a single line is higher than indicated, the PSU automatically switches off.