Model No: 621 Case dimension: L*W*H) not include front panel: 405mm*190mm*420mm Cartoon dimension: (L*W*H) 465*230*495(mm) Driver space: 4*5.25, external:2*3.5, internal: 4*3.5 Expansion slots: 7 full slot space for MB : any types, width up to 244mm front port: 2*USB+AUDIO Feature 1: hand screw backside, easy to open Feature 2: folded edge, safe for assemble Feature 3: clips on front panel, screwless Feature 4: SECC metal, only one side painting, CE/CB/FCC standard container loading: 40HQ: 1350 PCS