CPU	Intel® Socket 1155 for Intel® 2nd Generation Core™ i7 Processor/Core™ i5 Processor/Core™ i3 Processor/  Support Intel® 32nm CPU Supports Intel® Turbo Boost Technology 2.0 * The Intel® Turbo Boost Technology 2.0 support depends on the CPU types.
Chipset	Intel® H67 Express Chipset
Memory	4 x DIMM, Max. 32 GB, DDR3 1333/1066 Non-ECC,Un-buffered Memory Dual Channel memory architecture Supports Intel® Extreme Memory Profile (XMP) * According to Intel® SPEC, the Max. 32GB memory capacity can be supported with DIMMs of 8GB (or above). ASUS will update QVL once the DIMMs are available on the market.  * 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	1 x PCIe 2.0 x16 (blue, single at x16 mode)  1 x PCIe 2.0 x16 (black, at x4 mode, compatible with PCIe x 1 and PCIe x 4)  2 x PCIe 2.0 x1  3 x PCI * PCIe x1 slot shares the bandwidth with PCIe x16_2 slot.  * Due to CrossFireX™ limitation, DO NOT use the PCIe x1 slot when you install two CrossFireX™ graphics cards on both the PCIe x16 slots to set up a CrossFireX™ cofiguration.  * To disable the PCIe x1 slot, refer to the Onboard Devices Configuration section in the BIOS for details.
Multi-GPU Support	Supports ATI® Quad-GPU CrossFireX™ Technology
Storage	Intel® H67 Express Chipset  4 xSATA 3.0 Gb/s ports  2 xSATA 6.0 Gb/s ports  Intel® Rapid Storage technology Support RAID 0,1,5,10  VIA VT6415 PATA controller  1 xUltraDMA 133/100 for up to 2 PATA devices
LAN	Realtek® 8111E Gigabit LAN
Audio	ALC887 8-Channel High Definition Audio CODEC  - Optical S/PDIF out port at back I/O  - Supports Jack-Detection, Multi-Streaming, and Front Panel Jack-Retasking
USB	ASMedia® USB 3.0 controller - 2 x USB 3.0/2.0 ports (blue) Intel® H67 Express Chipset - 12 x USB 2.0/1.1 ports (6 ports at mid-board, 6 ports at the back panel)
ASUS Unique Features	ASUS Protect 3.0  - Anti-Surge protection  - LOW EMI  - ESD  - EPU  ASUS Hybrid Switches  - Turbo Key II  - MemOK!  ASUS Exclusive Features  - TurboV, Auto Tuning  ASUS Quiet Thermal Solution  - ASUS Fanless Design: Stylish Heatsink Solution & MOS Heatsink  - ASUS Fan Xpert  ASUS EZ DIY:  - ASUS EFI BIOS  - ASUS AI Suite II  - ASUS CrashFree BIOS 3  - ASUS MyLogo 2  - ASUS EZ Flash 2
Overclocking Features	Precision Tweaker  - vCore: Adjustable CPU voltage at 0.005V increment - vCCIO: adjustable I/O voltage at 0.005V increment  - vDRAM Bus: 190-step DRAM voltage control  - vPCH: 190-step chipset voltage control  SFS (Stepless Frequency Selection) - BCLK/PEG frequency tuning from 80MHz up to 300MHz at 0.1MHz increment.  Overclocking Protection - ASUS C.P.R.(CPU Parameter Recall)
Special Features	100% All High-quality Conductive Polymer Capacitors
Back Panel I/O Ports	1 x PS/2 Mouse (Green) 1 x PS/2 Keyboard (Purple) 1 x LAN(RJ45) port(s)  2 x USB 3.0/2.0 ports 6 x USB 2.0/1.1 ports 1 x S/PDIF Out (Optical)  8 -Channel Audio I/O
Internal I/O Connectors	3 x USB connectors support additional 6 USB 2.0/1.1 ports  1 x MemOK! Button 1 x IDE connector  2 x SATA 6.0Gb/s ports 4 x SATA 3.0Gb/s ports 1 x CPU Fan connector(s)  2 x Chassis Fan connector(s)  1 x Power Fan connector(s)  1 x S/PDIF Out connector  1 x 24-pin ATX Power connector  1 x 8-pin ATX 12V Power connector  1 x Front panel audio connector 1 x COM connector 1 x System Panel  1 x Turbo Key II swith
BIOS	32 Mb Flash ROM , EFI BIOS, PnP, DMI v2.0, WfM2.0, SMBIOS v2.6, ACPI v2 0a, Multi-language BIOS
Manageability	WOL by PME,WOR by PME,PXE
Accessories	Users manual 1 x I/O Shield  1 x UltraDMA 133/100/66 cable  2 x SATA 6.0Gb/s cables 1 x Support DVD
Support Disc	Drivers Anti-virus software (OEM version) ASUS Update ASUS Utilities
Form Factor	ATX Form Factor  12 inch x 8.7 inch ( 30.5 cm x 22.1 cm )