MAINBOARD dp45sg

Form factor	ATX (11.60 inches by 9.60 inches [294.64 millimeters by 243.84 millimeters])
Processor	View supported processors for the most current list of compatible processors. At product launch, this desktop board supports: Support for an Intel® Core™2 Extreme processor in an LGA775 socket Support for an Intel® Core™2 Quad processor in an LGA775 socket Support for an Intel® Core™2 Duo processor in an LGA775 socket Support for an Intel® Pentium® processor in an LGA775 socket Support for an Intel® Celeron® processor in an LGA775 socket Support for an Intel® Celeron® processor 400 sequence in an LGA775 socket
Memory	Four 240-pin DDR3 SDRAM Dual Inline Memory Module (DIMM) sockets Support for DDR3 1333/1066/800 MHz DIMMs Support for up to 8 GBΣ of system memory
Chipset	Intel® P45 Express Chipset
Audio	Intel® High Definition Audio subsystem in the following configuration: 8-channel (7.1) audio subsystem with five analog audio outputs and one optical S/PDIF digital audio output using the IDT 92HD73E audio codec
Video	Dual PCI Express* (PCIe) 2.0x16 slots with ATI Crossfire* technology support Full support of Next Generation ATI Crossfire
LAN Support	Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel® 82567LF Gigabit Ethernet Controller
Peripheral Interfaces	Up to 12 USB 2.0 ports (6 back ports and 6 via headers) Six Serial ATA 3.0 Gb/s ports, including 1 eSATA back port with RAID 0, 1, 5, 10 support Two IEEE-1394a ports (1 external port, 1 internal header) Consumer IR receiver and emitter (via internal headers) One serial port via header
Expansion Capabilities	Two PCI* Express 2.0 x1 and three PCI expansion slots