Sonata Plus 550 case main specs include:

• Application: ATX and smaller form factors derived from this one.
• Material: Zinc-coated steel (SECC).
• Power supply required: Antec Neo HE 550.
• Available colors: Black.
• Size: 16.7” x 8.1” x 18.2” (42.5 cm x 20.6 cm x 46.3 cm) (H x W x D).
• Weight: 26 lbs (12 Kg)
• Bays: Three external 5 ¼” bays, one external 3 ½” bay that can be used as an extra 5 ¼” bay and four 3 ½” internal bays (or three if the suspension mechanism is used).
• Expansion slots: Seven.
• Fans: One 120 mm fan on the rear with a three-position speed control switch.
• Extra features: Washable air filter.
• More Information: http://www.antec.com
• Average price in the US*: USD 180.00.

* Researched at Pricewatch.com on the day we published this review.