ASUS Crosshair II Formula Republic of Gamers Series nForce 780a SLI Socket AM2+ onboard graphics 8 channel audio ATX Motherboard CPU

AMD Socket AM2+ Processors
AMD Phenom™ FX / Phenom / Athlon™ / Sempron™
AMD Socket AM2 for AMD Athlon 64 X2 / Athlon 64 FX / Athlon 64 / Sempron
AMD Cool'n'Quiet™ Technology

Chipset

NVIDIA nForce® 780a SLI

System Bus

Up to 5200/MT/s HyperTransport™ 3.0 interface for AM2+ CPU
2000 / 1600 MT/s for AM2 CPU

Memory

4 x DIMM, Max. 8 GB, DDR2 1066/800/667 ECC,Non-ECC,Un-buffered Memory
Dual Channel memory architecture
*When installing total memory of 4GB capacity or more, Windows® 32-bit operation system may only recognize less than 3GB. Hence, a total installed memory of less than 3GB is recommended.

Expansion Slots

3 x PCIe 2.0 x16 support NVIDIA SLI Tech @ dual x16 or 3-way@x8, x8, x 8
2 x PCIe x1
2 x PCIe1.0 x1, PCIex1_1 (black) is compatible with audio slot

VGA

Integrated graphics
512MB Maximum shared memory of MB
Supports HDMI™ Technology with HDCP compliant with max. resolution 1920 x 1200
Supports D-Sub with max. resolution 1920 × 1440 @ 75 Hz
Multi VGA output support: DVI & D-Sub
Hybrid SLI Support
Scalable Link Interface (SLI™) Support NVIDIA Hybrid SLI-Ready graphics cards

Storage Southbridge

1 xUltraDMA 133/100/66/33
6 xSATA 3 Gb/s ports
Support RAID 0,1,0+1,5,JBOD

LAN

Dual Gigabit LAN, both featuring AI NET2

Audio

SupremeFX II Audio Card
ADI 1988B 8 -Channel High Definition Audio CODEC
Coaxial / Optical S/PDIF out ports at back I/O
ASUS Noise Filter

IEEE 1394

2 x 1394a ports (1 port at back I/O, 1 port onboard)
USB 12 USB 2.0 ports (6 ports at mid-board, 6 ports at back panel)

Back Panel I/O Ports

1 x D-Sub
1 x PS/2 Keyboard
1 x HDMI
1 x IEEE 1394a
2 x LAN(RJ45) port
6 x USB 2.0/1.1
1 x Clr CMOS switch
1 x Optical + 1 x Coaxial S/PDIF Output

Internal I/O Connectors

3 x USB connectors support additional 6 USB 2.0 ports
1 x Floppy disk drive connector
1 x IDE connector
6 x SATA connectors
1 x IEEE 1394a connector
1 x CPU Fan connector
3 x Chassis Fan connector
1 x Power Fan connector
3 x thermal sensor connectors
1 x S/PDIF Out connector
1 x8-pin ATX 12V Power connector
24-pin ATX Power connector
1 x En/Dis-able Clr CMOS connector
1 x LCD Poster
Chassis Intrusion connector
System Panel

Form Factor

ATX Form Factor
12 inch x 9.6 inch (30.5cm x 24.4cm)