Case dimension: (W x L x H): 440 x 182 x 420mm Cartoon dimension: (L*W*H) 525*235*470(mm) Driver space: 1*5.25, external:1*3.5, internal: 4*3.5 space for MB : any types, width up to 244mm front port: 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: SPCC metal, CE/CB/FCC standard container loading: 40HQ: 1390 PCS