The C3320-0040 is a 19" panel PC, built-in housing, 8 rack units. Protection class front side IP 65, rear side IP 20. Operating temperature 0 to 55°C. Features processor Intel® Celeron® T3100 1.9GHz, 2 cores (TC3: 60). ATX motherboard for Intel® Celeron® or Core™2 Duo. 3 PCI Express x1 slots free, 3 PCI slots free and 1 PCI Express x16 graphic card slot. 2GB DDR3 RAM, expandable to 8GB. On-board graphic adapter, Intel® GMA 4500MHD, monitor connector. ADD-IN card in the PCI Express x16 graphic card slot with internal DVI connector to control the display in the front. On-board Ethernet adapter with 10/100/1000BASE-T connector. On-board SATA RAID 1 controller, Intel® Matrix Storage Technology. Hard disk, 3½-inch, 1TB. 4 serial ports RS232 on-board, 1 of these RS232 ports is led out with D-sub 9 connector and 12 USB 2.0, 4 of these USB ports are led out, 1 parallel port, COM4 is used for controlling the PLC special keys and the LEDs on the front. 100 to 240V AC full range power supply.