Happy-13 computer case

1,All the screw fixed the case is hand-controlled, no tool in need 2,According to atmosphere-flow ,adopt several ,channels of heat release and build a room of constant temperature 3,All metals adopt hem technics ,which are high-quality and imported no finger injury 4,Strong expansibility, HDD frame extend to bottom compatible use P4 comprehensively 5,Front Panel with USB audio and video for more convenient use 6,More secure , Lock design 7,Moderm design complies with the trend of the market 8,With airguide on side panel in order to release heat quickly 9, Several channels of heat release and build a room of constant temperature 10,Two switch put as inversion of "/\" plating technics ,special stare and knockout 11, Provide drive bays:5.25"X4,3.25"X7 (FDDX1 HDDX6)