EarthWatts 500 Watt power supply (80 PLUS certified) Front mounted USB, eSATA, HDA & AC 97 Audio In/Out ports 9 Drive Bays: - 3 x 5.25" external drive bays - 2 x 3.5" external drive bays - 4 x 3.5" internal drive bays in individual trays with silicone grommets to absorb hard drive vibrations Cooling System: - 1 rear 120mm Tricool fan (standard) with 3-speed control to balance quiet with cooling - 1 front 120mm case fan (optional) Motherboards up to Standard ATX

The Antec Sonata III 500 Super Mid Tower combines style, silence, and efficiency. The Sonata III is whisper quiet when it comes to system noise and the High Definition front audio ports ensure that music will be crystal clear. Use the convenient front eSATA connector for simple data transfer. It is all powered by the EarthWatts 500-watt power supply unit, which is equipped with universal input and Active PFC. This power supply unit is 80-plus certified, one of the most efficient available.

The Antec Sonata also features improved overall air intake for better and quieter cooling. To keep your systems running cool, it has one rear standard 120-millimeter TriCool fan with a three-speed control and one optional front 120-millimeter case fan. This case has a total of nine drive bays--three 5.25-inch external bays, two 3.5-inch external bays, and four 3.5-inch internal bays that are held in individual trays with silicone grommets to absorb hard-drive vibrations. The Antec Sonata is designed to fit motherboards up to standard ATX. It measures 16.7 by 18.2 by 8.1 inches (HxDxW) and weighs 20.2 pounds.

Other features include:

• Metal double hinge door opens up to 225 degrees
• Constructed from 0.8-millimeter cold rolled steel for durability
• Built-in washable air filter to keep dust out of your case
• Front-mounted USB, eSATA, HDA, and AC'97 audio in/out ports