GGUARDIANO SERIES AC-GD168-BR/BD/BB ~ Dimension: H405 x W180 x L421 mm ~ Mainboard Type: ATX, Mini-ATX, Micro ATX ~ 5.25" Capacity: 3(Exposed); 1(hidden) ~ 3.5" Capacity: 1(Exposed); 5(Hidden) ~ Cooling Fan: Front-8/9/12cm (optional), Rear 8-included/9cm; (Side)8cm-optional ~ Power Supply: 500w, 12cm fan (24pin-12V, 4pinx2 SATAx2, Floppy x 1)