Mini tower motherboards micro atx mini itx front connections 1x usb 20 1 x usb 30 line out mic in slots 4 fan pre installed 1 fan maximum 4 525 disk drive slots 1 35 disk drive slots int 2 disk tray 25 3 material steel colour black height 364 mm width 189 mm depth 427 mm max graphics card length 300 mm