CHAS MID MATX BLK W/ T2 HD/AC97 350W V2.2 PRODUCT FEATURES: 12cm rear fan Side panel Adjustable air duct Larger ventilation holes on the side panel with Additional Air Filter Supports Intel Prescott CPU Best Performed SECC Japanese Steel metal Rail Construction for 5.25"/3.5" device -(2 5.25, 2 3.5) for faster installation and service Detachable HDD Drive Cage - for better install and service Folded Edge - for safety installation. No sharp edges, debris Standard 9cm rear fan for better system cooling Stamped Motherboard Support - no M/B standoffs installation required, for faster M/B installation Screwless Front Panel and Side Panels - for easy removal and installation Configured 7 drive bays - (3 x 5.25", 4x3.5") drive bays for expandability of future upgrade 0.8 mm Sheet Metal Construction - for better stability and durability Meet CE, FCC Class B requirement