MATX 4 PCI SLOTS INT 1X 3.5 HD/AC97 AUD 350W V2.2 PRODUCT FEATURES: Best performed SECC Japanese steel metal Detachable HDD drive cage Extra vent at rear panel Folded edge Stamped motherboard support Configured 5 drive bays 0.8 mm sheet metal construction Screwless front panel Meet CE, FCC Class B requirement