· 
CPU

Intel® Socket 1155 for 3^rd/2^nd Generation Core™ i7/Core™ i5/Core™i3/Pentium®/Celeron® Processors 
Supports Intel® 22 nm CPU
Supports Intel® 32 nm CPU
Supports Intel® Turbo Boost Technology 2.0 

·  Chipset

Intel® Z77

·  Memory

4 x DIMM, Max. 32GB, DDR32400(O.C.)/2200(O.C.)/2133(O.C.)/2000(O.C.)/1866(O.C.)/1800(O.C.)/1600/1333 MHzNon-ECC, Un-buffered Memory 
Dual Channel Memory Architecture 
Supports Intel® Extreme Memory Profile (XMP)
* Hyper DIMM support is subject to the physical characteristics of individualCPUs. 

·  Graphic

Integrated Graphics Processor 
Multi-VGA output support : HDMI/DVI/RGB/DisplayPort ports 
- Supports HDMI with max. resolution 1920 x 1200 @ 60 Hz
- Supports DVI with max. resolution 1920 x 1200 @ 60 Hz
- Supports RGB with max. resolution 2048 x 1536 @ 75 Hz
- Supports DisplayPort with max. resolution 2560 x 1600 @ 60 Hz 
Maximum shared memory of 1696 MB
Supports Intel® HD Graphics

·  Multi-GPU Support

Supports NVIDIA® Quad-GPU SLI™ Technology 
Supports AMD Quad-GPU CrossFireX™ Technology *¹
Supports AMD 3-Way CrossFireX™ Technology

·  Expansion Slots

2 x PCIe 3.0/2.0 x16 (x16 or dual x8) *²
1 x PCIe 2.0 x16 (x4 mode, black) *³
2 x PCIe 2.0 x1 
2 x PCI

·  Storage

Intel® Z77 chipset : 
2 x SATA 6Gb/s port(s), gray
4 x SATA 3Gb/s port(s), blue
Support Raid 0, 1, 5, 10
Supports Intel® Smart Response Technology, Intel® Rapid Start Technology,Intel® Smart Connect Technology *⁴

·  LAN

Realtek® 8111F, 1 x Gigabit LAN Controller(s)

·  Audio

Realtek® ALC892 8-Channel High Definition Audio CODEC 
- Supports : Jack-detection, Multi-streaming, Front Panel Jack-retasking

·  USB Ports

Intel® Z77 chipset : *⁵
4 x USB 3.0 port(s) (2 at back panel, blue, 2 at mid-board)
Intel® Z77 chipset : 
10 x USB 2.0 port(s) (2 at back panel, black, 8 at mid-board)
ASMedia® USB 3.0 controller : *⁶
2 x USB 3.0 port(s) (2 at back panel, blue)

·  ROG Exclusive Features

Overclocking Protection :
- ASUS C.P.R.(CPU Parameter Recall)

·  Special Features

ASUS EPU :
- EPU 
- EPU switch
ASUS Digital Power Design :
- Industry leading 4 + 1 + 1 Phase Power Design
- ASUS DIGI+ VRM Utility
TurboV
GPU Boost 
ASUS Exclusive Features :
- MemOK!
- AI Suite II
- Ai Charger+
- Anti-Surge
- ASUS UEFI BIOS EZ Mode featuring friendly graphics user interface 
- Network iControl
- USB 3.0 Boost
- Disk Unlocker
ASUS Quiet Thermal Solution :
- Stylish Fanless Design Heat-sink solution & MOS Heatsink 
- ASUS Fan Xpert+
ASUS EZ DIY :
- ASUS CrashFree BIOS 3 
- ASUS EZ Flash 2 
- ASUS MyLogo 2 
100% All High-quality Conductive Polymer Capacitors

·  Back I/O Ports

1 x PS/2 keyboard/mouse combo port(s)
1 x DVI
1 x DisplayPort
1 x HDMI
1 x LAN (RJ45) port(s)
4 x USB 3.0 
2 x USB 2.0 
1 x Optical S/PDIF out
6 x Audio jack(s)

·  Internal I/O Ports

1 x USB 3.0 connector(s) support(s) additional 2 USB 3.0port(s) 
4 x USB 2.0 connector(s) support(s) additional 8 USB 2.0 port(s)
1 x COM port(s) connector(s)
2 x SATA 6Gb/s connector(s)
4 x SATA 3Gb/s connector(s)
1 x CPU Fan connector(s) (4 -pin)
3 x Chassis Fan connector(s) (4 -pin)
1 x S/PDIF out header(s)
1 x 24-pin EATX Power connector(s)
1 x 8-pin ATX 12V Power connector(s)
1 x Front panel audio connector(s) (AAFP)
1 x System panel(s) 
1 x MemOK! button(s)
1 x EPU switch(es)
1 x GPU Boost switch(es)
1 x Clear CMOS jumper(s)

·  Accessories

User's manual
I/O Shield
2 x SATA 6Gb/s cable(s)
1 x SLI bridge(s)

·  BIOS

64 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS2.7, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3,F12 PrintScreen, F3 Shortcut Function and ASUS DRAM SPD (Serial PresenceDetect) memory information

·  Manageability

WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE

·  Support Disc

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

·  Form Factor

ATX Form Factor 
12 inch x 8.8 inch ( 30.5 cm x 22.4 cm )

·  Note

*1: Disable PCIe x1_2 slots and manual set the PCIe x16_3 tox4 mode in BIOS when configure CrossFireX™ with dual graphics cards. 
*2: PCIe 3.0 speed is supported by Intel® 3rd generation Core™ processors.
*3: The PCIe x16_3 slot shares bandwidth with PCIe x1_2 slot. The defaultsetting is x2 mode. Go to the BIOS setup to change the settings.
*4: Supports on Intel® Core™ processor family with Windows 7 operating systems.
*5-1: The USB 3.0 ports only support Windows® 7 or later versions. 
*5-2: Supports ASUS USB 3.0 Boost UASP Mode.
*6: Due to Intel® chipset limitation, P8Z77, P8H77 and P8B75 seriesmotherboards do not support Windows® Vista operating system.