Mothercard AMD Sempron 2400 Ram 512MB 100Mbit port 2 additionnal Gigabit Ethernet ports 2 Maxtor drives 400GB S-ATA 8MB cache 7200 rpm 4 USB 2.0 ,3 1394A , 2 serial ports 200W Power EMI certified: FCC,CE, BSMI; safety :UL, TUV, CB 1 x power-on button, 1 x reset button Power LED color: blue; HDD LED color: orange Dimension : 300 (L) x 200 (W) x 185 (H) mm Linux OS+ StorIQ NAS software