INTEL BOXDX48BT2 intel x48 chipset ATX form factor 2xPCI-E(x16)/1xPCI-E(x1)/2xpci/4xddr3 w/sata2 raid,lan(gb),1394,esata,usb 2.0 & audio (cpu type:intel - socket 775)

• Support for both 45nm & 65nm Intel® Core™2 Quad processors in an LGA775 socket with a 1600, 1333 or 1066 MHz system bus
• Support for both 45nm & 65nm Intel® Core™2 Extreme processors in an LGA775 socket with a 1600, 1333 or 1066 MHz system bus
• Support for both 45nm & 65nm Intel® Core™2 Duo processors in an LGA775 socket with a 1333 or 1066 MHz system bus
• Support for an Intel® Pentium® dual-core processor in an LGA775 socket with an 800 MHz system bus

• Four 240-pin DDR3 SDRAM Dual Inline Memory Module (DIMM) sockets
• Support for DDR3 1600 MHz, DDR3 1333 MHz, DDR3 1066 MHz, or DDR3 800 MHz DIMMs
• Support for up to 8 GB of system memory
• Support for ECC and non-ECC memory

• Intel® X48 Express Chipset

Intel® High Definition Audio subsystem in the following configuration:

• 8-channel (7.1) Dolby Home Theater Audio subsystem with five analog audio outputs and two S/PDIF digital audio outputs (coaxial and optical) using the Sigmatel* 9274D audio codec

• ATI CrossFire technology enables two ATI* graphics cards to work together for ultimate 3D gaming performance and visual quality
• Full support of Next Generation ATI Crossfire

• Twelve USB 2.0 ports (8 external ports, 2 internal headers)
• Six Serial ATA 3.0 Gb/s ports, including 2 eSATA port with RAID support supplied by a Marvell* controller
• Two IEEE-1394a ports (1 external port, 1 internal header)
• Consumer IR receiver and emitter (via internal headers)
• One Parallel ATA IDE interface with UDMA 33, ATA-66/100 support (2 devices supported)

• Two PCI Conventional* bus add-in card connectors (SMBus routed to both PCI Conventional bus add-in card connectors)
• One primary PCI Express* 2.0 x16 (electrical x16) bus add-in card connector
• One secondary PCI Express 2.0 x16 (electrical x16) bus add-in card connector
• One PCI Express* 1.0a x16 (electrical x4) bus add-in card connector