Form factor

ATX (12.00 inches by 9.60 inches [304.80 millimeters by 243.84 millimeters])

Processor

View supported processors for the most current list of compatible processors. At product launch, this desktop board supports:

• Intel® Core™ i7-800 processor series in an LGA1156 socket
• Intel® Core™ i5-700 processor series in an LGA1156 socket

Memory

• Four 240-pin DDR3 SDRAM Dual Inline Memory Module (DIMM) sockets
• Support for DDR3 1600+Σ1/1333/1066 MHz DIMMs
• Support for up to 16 GBΣ2 of system memory

Chipset

• Intel® P55 Express Chipset

Audio

Intel® High Definition AudioΣ3 subsystem in the following configuration:

• 10-channel (7.1+ 2 independent multi-streaming) audio subsystem with five analog audio outputs and two optical S/PDIF digital audio for input and output using the Realtek * ALC889 audio codec

Video

Nvidia SLI* and ATI CrossFire* technology support enables two graphics cards to work together for ultimate 3D gaming performance and visual quality

LAN support

Intel® PRO 10/100/1000 Network Connection (82578DC)

Peripheral interfaces

• Fourteen USB 2.0 ports (8 external ports, 4 internal headers)
• Six Serial ATA 3.0 Gb/s ports
• Two IEEE-1394a ports (1 external port, 1 internal header)
• Consumer IR receiver and emitter (via internal headers)

Expansion capabilities

• One primary PCI Express* 2.0 x 16 bus add-in card connector
• One PCI Express* 2.0 x8 bus add-in card connector, bifurcated from the primary PCI Express 2.0 x16
• One PCI Express 2.0 x4 connector
• Two PCI Express 2.0 x 1 connectors
• Two PCI Conventional bus connectors