Specifications
CPU Support: Intel® Socket 1156 Core™ i7 Processor/Core™ i5 Processor
-Supports Intel® Turbo Boost Technology

Chipset: Intel® P55 Express Chipset

Memory Support: DDR3 2200(O.C.)/1600/1333/1066 Non-ECC,Un-buffered Memory
-4 x DIMM, maximum 16GB
-Dual Channel memory architecture
-Supports Intel® Extreme Memory Profile (XMP)

PCI Expansion:
-2 x PCIe 2.0 x16 (single at x16 or dual at x8/x8 mode)
-1 x PCI Express 2.0 x16 slots (at x4 mode, 2.5GT/s)
-2 x PCI Express 2.0 x1 (2.5GT/s)
-2 x PCI

Multi GPU Support:
-NVIDIA® Quad-GPU SLI™ Technology
-ATI® Quad-GPU CrossFireX™ Technology

Storage:
Intel® P55 Express Chipset built-in
-6 xSATA 3.0 Gb/s ports
-Intel Matrix Storage Technology Support RAID 0,1,5,10
JMicron® JMB363 PATA and SATA controller
-1 xUltraDMA 133/100/66 for up to 2 PATA devices
-1 xExternal SATA port
JMicron® JMB322 (DriveXpert Technology) :
- 2 x SATA 3.0 Gb/s ports (navy blue and gray)
- Supports EZ Backup and SuperSpeed functions
*Drive Xpert function is available only when the hard disk drives are set as data drives.

LAN: Dual Gigabit Realtek® 8112L / 8110SC Gigabit LAN controller featuring AI NET2 and Teaming

Audio: VIA® VT1828S 8-Channel High Definition Audio CODEC
- Absolute Pitch BD192/24
- DTS Surround Sensation UltraPC
- Supports Jack-Detection, Multi-streaming, Front Panel Jack-Retasking
- Coaxial / Optical S/PDIF out ports at back I/O

IEEE 1394: VIA® 6308P controller supports 2 x 1394a ports (one at mid-board; one at back panel)

USB: 14 USB 2.0/1.1 ports (6 ports at mid-board, 8 ports at back panel)

Asus Unique Features:
ASUS Hybrid Processor – TurboV EVO
- Auto Tuning, TurboV and Turbo Key
ASUS 16 Hybrid Phase*
- T.Probe Technology for Active Cooling
- 12+2 Phase Power Design
- 100% Ultra Long Life Japan-Made Solid Capacitors
*16 Hybrid Phase = 12+2 Phase x T.Probe
ASUS Hybrid OS – Express Gate
ASUS Xtreme Design
ASUS Exclusive Features
- ASUS Drive Xpert
- MemOK!
- ASUS EPU
ASUS Quiet Thermal Solution
- ASUS Fanless Design: Heat-pipe solution
- ASUS Fanless Design: Stack Cool 3
- ASUS Fan Xpert
ASUS Crystal Sound
- ASUS Noise Filter
ASUS EZ DIY
- ASUS Q-Connector
- ASUS Q-Shield
- ASUS O.C. Profile
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 2
- ASUS MyLogo 2
- Multi-language BIOS
ASUS Q-Design
- ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
- ASUS Q-Slot
- ASUS Q-DIMM

Overclocking Features:
Precision Tweaker 2
- vCore: Adjustable CPU voltage at 0.00625V increment
- vIMC: Adjustable IMC voltage at 0.00625V increment
- vDRAM Bus: 81-step DRAM voltage control
- vPCH: 2-step chipset voltage control
- vCPU_PLL: 4-step reference voltage control
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)

I/O Panel:
1 x External SATA
2 x S/PDIF Out ( Coaxial x 1, Optical x 1 )
1 x IEEE 1394a
2 x LAN(RJ45) port
8 x USB 2.0/1.1
8 -Channel Audio I/O
1 x PS/2 Keyboard (Purple)
1 x PS/2 mouse port (Green)
1 x Clear CMOS switch

Internal Connectors:
3 x USB connectors support additional 6 USB ports
1 x IDE connector
6 x SATA connectors
1 x IEEE 1394a connector
1 x CPU Fan connector
1 x Power Fan connector
2 x Drive Xpert SATA connectors (navy blue and gray)
2 x Chassis Fan connector (1×4-pin, 1×3-pin)
Front panel audio connector
1 x S/PDIF Out Header
1 x CD audio in
1 x COM connector
1 x 24-pin ATX Power connector
1 x 8-pin ATX 12V Power connector
System Panel(Q-Connector)
1 x MemOK! button
1 x Power on switch
1 x Reset switch

BIOS: 16 Mb Flash ROM , 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 UltraDMA 133/100/66 cable
4 x SATA cable(s)
1 x 2-port USB and eSATA module
ASUS Q-Shield
2 in 1 Q-connector
1 x ASUS SLI bridge connector

Driver Disk:
Drivers
Anti-virus software (OEM version)
ASUS Update
ASUS Utilities

Form Factor: ATX Form Factor

Dimensions: 12 inch x 9.6 inch (30.5 cm x 24.4 cm )