ATX 7 PCI SLOTS INT 2X3.5 AC97 AUD 350W V1.3 ENTRY PRODUCT FEATURES: Detachable HDD drive cage - choose one for standard or two optional cages for better install and service Optional screwless side panels - for easy removal and installation Optional screwless ODD bays & FDD bays - for easy removal and installation Optional 4-slots add-on card screwless - for easy removal and installation Folded edge - for safety installation Extra vent at rear panel - optional 9cm or 12cm auxiliary cooling fan can be installed at rear panel for better system cooling Stamped motherboard support - no M/B standoffs installation required, for faster M/B installation