CPU	Intel® Socket 1156 Core™ i7 Processor/Core™ i5 Processor/Core™ i3 Processor/ Pentium® Processors Supports Intel® Turbo Boost Technology* * The Intel Turbo Boost Technology support depends on the CPU types. ** Refer to www.asus.com for Intel CPU support list
Chipset	Intel® H55 Express Chipset
Memory	4 x DIMM, Max. 16 GB, DDR3 2133(O.C.)*/1333/1066 Non-ECC,Un-buffered Memory Dual Channel memory architecture Supports Intel® Extreme Memory Profile (XMP) * Hyper DIMM support is subject to the physical characteristics of individual CPUs. Some hyper DIMMs only support one DIMM per channel. Please refer to Memory QVL for details. ** Refer to www.asus.com or this user manual for the Memory QVL(Qualified Vendors Lists).
Expansion Slots	1 x PCIe 2.0 x16 2 x PCIe 2.0 x1 (2.5GT/s, gray slots) 1 x PCI
VGA	Multi-VGA output support: HDMI, DVI-D, RGB Supports HDMI with max. resolution 1920 x 1200@60Hz Supports DVI with max. resolution 1920 x 1200@60Hz Supports RGB with max. resolution 2048 x 1536@75Hz Maximum shared memory of 1748 MB
Storage	Intel® H55 Express Chipset built-in 6 xSATA 3.0 Gb/s ports Marvell 88SE6111 1 xUltraDMA 133/100 for up to 2 PATA devices 1 xExternal SATA 3.0 Gb/s port (SATA on-the-go)
LAN	Gigabit LAN controller Realtek® 8112L Gigabit LAN controller featuring AI NET2
Audio	Realtek 8-Channel High Definition Audio CODEC - BD Audio Layer Content Protection - Supports Jack-Detection, Multi-streaming, Front Panel Jack-Retasking - Optical S/PDIF out ports at back I/O - ASUS Noise Filter
IEEE 1394	VIA® 6315N controller supports 2 x 1394a port(s) (one at mid-board; one at back panel)
USB	NEC® USB 3.0 controller: - 2 x USB 3.0 ports (blue; at back panel) Intel® H55 Express Chipset: - 10 x USB 2.0 ports (6 ports at mid-board, 4 ports at back panel)
ASUS Unique Features	ASUS Xtreme Design ASUS Exclusive Overclocking Features - GPU Boost - TurboV and Turbo Key ASUS Xtreme Phase - 8+3 Phase Power Design ASUS Exclusive Features - Express Gate - MemOK! - ASUS EPU ASUS Quiet Thermal Solution - ASUS Fanless Design: Stack Cool 3 - ASUS Fan Xpert ASUS EZ DIY - ASUS Q-DIMM - ASUS Q-Connector - ASUS O.C. Profile - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2 - ASUS MyLogo 2 - Multi-language BIOS
Overclocking Features	Precision Tweaker 2 - vCore: Adjustable CPU voltage at 0.00625V increment - vIMC: Adjustable IMC voltage at 0.02V increment - vDRAM Bus: Adjustable DRAM voltage at 0.02V increment - vPCH: Adjustable PCH voltage at 0.01V increment - vCPU_PLL: Adjustable CPU_PLL voltage at 0.02V increment - iGPU: Adjustable iGPU voltage at 0.0125V increment SFS (Stepless Frequency Selection) - PCI Express frequency tuning from 100MHz up to 200MHz at 1MHz increment - Internal Base Clock tuning from 80MHz up to 500MHz at 1MHz increment Overclocking Protection - ASUS C.P.R.(CPU Parameter Recall)
Back Panel I/O Ports	1 x D-Sub 1 x HDMI 1 x External SATA 1 x S/PDIF Out (Optical) 1 x IEEE 1394a 1 x LAN(RJ45) port 4 x USB 2.0/1.1 8 -Channel Audio I/O 1 x PS/2 Keyboard (Purple) 2 x USB 3.0/2.0 ports 1 x DVI-D
Internal I/O Connectors	3 x USB connectors support additional 6 USB ports 1 x IDE connector 1 x IEEE 1394a connector 1 x CPU Fan connector 1 x Power Fan connector 6 x SATA 3.0Gb/s connectors 1 x Chassis Fan connector (1x4-pin) Front panel audio connector 1 x S/PDIF Out Header 1 x 24-pin ATX Power connector 1 x 8-pin ATX 12V Power connector System Panel(Q-Connector) 1 x COM connector 1 x Clear CMOS jumper 1 x MemOK! button
BIOS	64 Mb Flash ROM , SPI, AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3
Manageability	WfM 2.0,DMI 2.0,WOL by PME,WOR by PME,PXE
Accessories	User´s manual 1 x I/O Shield 1 x UltraDMA 133/100 cable 2 x Serial ATA 3.0Gb/s cables 2 in 1 Q-connector
Support Disc	Drivers Anti-virus software (OEM version) ASUS Update ASUS Utilities
Form Factor	uATX Form Factor 9.6 inch x 9.6 inch ( 24.5 cm x 24.5 cm )