The Sonata III 500 is everything you've come to expect from the prestigious Sonata line. It is whisper quiet when it comes to system noise while the new high definition front audio ports ensure that your audio will be crystal clear, and the front eSATA connector allows for simple data transfer. Its all powered by an EarthWatts EA-500D Green power supply which is equipped with universal input and Active PFC. This PSU is also 80PLUS® Bronze certified making it one of the most efficient PSUs available. All that means the Sonata III is the perfect combination of style, silence and efficiency.