Apevia"s Java 650W power supply is a great looking unit with excellent cost efficiency for its features and reliability. This power supply features a thermally controlled 120mm UV blue fan. When internal temperatures rise, fan speed increases; at cooler temperatures fan speed will decrease or pause. It comes equipped with plenty of connectors including 4 x SATA and 2 x PCI-E connector to support modern PC systems, and sleeved cables for improved airflow and appearance. The Java 650W power supply uses industry protection technologies in order to safeguard your system: Short-Circuit, Over-Current, Over-Voltage, Over-Power, Under-Voltage, and Over-Temperature