The C3330-0040 is a 19" panel PC, built-in housing, 9 rack units. Features processor Intel® Celeron® T3100 1.9 GHz, 2 cores (TC3: 60). ATX motherboard for Intel® Celeron® or Core™2 Duo. 3 PCI slots for full-length plug-in cards and 3 PCI Express x1 slots for up to 240 mm long plug-in cards. 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, 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.