Excellent Thermal Performance The FlexGURU PRO series offers an inner 40mm fan design, which reduces noise and allows for maximum cooling at all times. All Black Round Cables The all black round cables offers your system a more sophisticated look compared to other entry-level power supplies. 90% Efficiency Conversion The efficiency of your power supply is very important since it directly affects your system's performance. The FlexGURU PRO 500W has a guaranteed typical efficiency of 90% and offers a high conversion power to power your system. Multifunctional Design The FlexGURU series comes with the included 1U bracket which turns the FlexGURU PRO 500W into a 1U IPC power supply. Compliance with IEC 62368 FSP Group features the latest in green power technology and provides additional safety approvals to keep its power supplies ahead of regulation changes. FSP has upgraded the majority of its power supplies to the newer IEC 62368 standards. Safety Protection OVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), and OTP (Over Temperature Protection), full guardian circuit protection to keep your hardware safe. Japanese Electrolytic Capacitors The FlexGURU series utilizes main Japanese Electrolytic Capacitors to offer stable outputs and long-term reliability.