) Drive space: (a) 5.25-inch x 4 (EXT) (b) 3.5-inch x 2 (EXT) (c) 3.5-inch x 6 (HDD) 2) Expansion slots: 7 slots 3) I/O ports: (a) Two USB 1.0 ports (b) Microphone in port (c) Speaker out port 4) Compatible motherboards: standard ATX, micro ATX, extended ATX 5) Power supply not included Carton Size: 503 x 243 x 555mm Dimension: 435 x 180 x 410mm