SIMATIC Rack PC 647B Interfaces: 2 x Gbit LAN(RJ45) 1x VGA; 2x COM, 1x LPT; 2x PS/2; 4x USB 2.0 on rear, 2x USB 2.0 on the front; audio; Temp. and fan monitoring; Watchdog, Card retainer Core 2 Duo T5500 (1.66 GHz, 2 MB L2 cache, EM64-T), Basic board with PROFIBUS/MPI Hard disk: 160 GB HDD SATA; 0.5 G vibration, 5 G shock, internal 1 GB DDR2 SD-RAM (1x 1 GB), Single channel DVD +/- RW Bus module 3 slots: 2x PCI, 1x PCIE X16; without hardware expansions Windows XP Professional, MUI (de, en, fr, es, it), SP2; SP3 enclosed without software 110/230 V industrial power supply unit with NAMUR, Power supply cable Europe