Big tower motherboard atx series cooler master storm front connections 2 x usb 30 2 x usb 20 1 x e sata mic in line out slots 10 fan pre installed 4 fan maximum 10 525 disk drive slots 9 35 disk drive slots int 8 disk tray 25 13 materials plastic steel height 579 mm width 250 mm depth 606 mm weight 144 kg for water cooling