The Intel® Desktop Board D845GERG2 supports the Intel® D845GE chipset featuring Intel® Extreme Graphics. You can experience improved visual effects and graphical acuity, as well as ultimate flexibility, with the advanced performance of this board. Processor Class: Intel® Pentium® 4 processor in an mPGA478 socket with a 533 or 400 MHz system bus Intel® Celeron® D processor in an mPGA478 socket with a 400 MHz system bus  Number of Processors Supported: 1 Chipset Used: Intel® 845GE Chipset Front Side Bus Supported: 533/400 MHz Memory Types Supported: 2GB (max) DDR-333 and DDR-266 MHz DIMM Number of Memory Slots: 2 (184-pin) Video Integrated: Intel® Extreme Graphics controller, AGP connector supporting 1x, 2x, and 4x AGP cards (1.5 V only) or an AGP Digital Display (ADD) card, Integrated retention mechanism Audio Integrated: Audio subsystem for AC '97 processing using the Analog Devices AD1981B codec featuring SoundMAX Cadenza Network Controller On-Board : Gigabit (10/100/ Mbits/sec) LAN subsystem using the Intel® 82562ET Gigabit Ethernet Controller Onboard Device : 1 parallel port, 1 serial port Two IEEE-1394a interfaces: one back panel connector and one front-panel header (optional) IDE Mode Supported : Two Parallel ATA IDE interface with UDMA 33, ATA-66/100/133 support SCSI Controller On-board : None AGP Slot : None Slots Available : Three PCI bus add-in card connectors Number of USB Ports : 3 Back, 3 Front USB 2.0 Form Factor : microATX, 9.6 x 8.2 Inches Other Features : BIOS Instant PC Technology Package Type : White Box w/ACC Package Includes: (1) Motherboard Cables: Floppy, ATA/100 IDE Condition: New