structure size: 410mm*180mm*415mm(l*w*h)-long version(2L) 390mm*180mm*415mm(l*w*h)-short version(2s) carton size:480mm*240mm*570mm(l*w*h)-long version(2L) 485mm*240mm*535mm(l*w*h)-short version(2s) 1*40HQ :1180PCS(long version)/1350 pcs(short version) net weight:6.5HG(long version)/5.5KG(short version) GROSS WEIGHT:7.5kg(long)/6.5 0.5mm SGCC/0.5mm SECC drive space:2*5.25/4*5.25 1*3.5FDD 5*3.5HDD USB2.0*2+AUD HANDLE:H1*1(OPTIONAL)or H2(OPTIONAL) transparent side panel FAN SPACE: 12CM*1 front metal panel(OPTIONAL) 9CM*1rear metal(OPTIONAL) airduct(OPTIONAL)