CPU Support for Intel Core™ i7 processors/Intel Core™ i5 processors/ Intel Core™ i3 processors/Intel Pentium processors/Intel Celeron processors in the LGA1155 package. (Go to GIGABYTEs website for the latest CPU support list.) L3 cache varies with CPUChipset Intel P67 Express ChipsetMemory 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory* Due to Windows 32-bit operating system limitation, when more than 4 GB of physical memory is installed, the actual memory size displayed will be less than 4 GB. Dual channel memory architecture Support for DDR3 2133/1866/1600/1333/1066 MHz memory modules Support for non-ECC memory modules Support for Extreme Memory Profile (XMP) memory modules(Go to GIGABYTEs website for the latest supported memory speeds and memory modules.)Audio Realtek ALC889 codec High Definition Audio 2/4/5.1/7.1-channel* To configure 7.1-channel audio, you have to use an HD front panel audio module and enable the multi-channel audio feature through the audio driver. Support for S/PDIF OutLAN 1 x Realtek RTL8111E chip (10/100/1000 Mbit)Expansion Slots 1 x PCI Express x16 slot, running at x16 (PCIEX16)* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot. 1 x PCI Express x16 slot, running at x4 (PCIEX4)* When the PCIEX1_2 or PCIEX1_3 slot is populated with an expansion card, the PCIEX4 slot will operate at up to x1 mode. 3 x PCI Express x1 slots(All PCI Express slots conform to PCI Express 2.0 standard.) 2 x PCI slots Multi-Graphics Technology Support for ATI CrossFireX™ technology* The PCIEX16 slot operates at up to x4 mode when ATI CrossFireX™ is enabled.Storage Interface Chipset: 2 x SATA 6Gb/s connectors (SATA3_0, SATA3_1) supporting up to 2 SATA 6Gb/s devices 4 x SATA 3Gb/s connectors (SATA2_2~SATA2_5) supporting up to 4 SATA 3Gb/s devices Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10* When a RAID set is built across the SATA 6Gb/s and SATA 3Gb/s channels, the system performance of the RAID set may vary depending on the devices being connected. USB Chipset: Up to 10 USB 2.0/1.1 ports (4 on the back panel, 6 via the USB brackets connected to the internal USB headers) Etron EJ168 chip: Up to 2 USB 3.0/2.0 ports on the back panel. Internal I/O Connectors 1 x 24-pin ATX main power connector 1 x 4-pin ATX 12V power connector 2 x SATA 6Gb/s connectors 4 x SATA 3Gb/s connectors 1 x CPU fan header 2 x system fan headers 1 x power fan header 1 x front panel header 1 x front panel audio header 1 x S/PDIF Out header 3 x USB 2.0/1.1 headers 1 x clearing CMOS jumper 1 x Trusted Platform Module (TPM) header Back Panel Connectors 1 x PS/2 keyboard/mouse port 1 x parallel port 1 x serial port 1 x optical S/PDIF Out connector 4 x USB 2.0/1.1 ports 2 x USB 3.0/2.0 ports 1 x RJ-45 port 3 x audio jacks (Line In/Line Out/Microphone) I/O Controller iTE IT8728 chipH/W Monitoring System voltage detection CPU/System temperature detection CPU/System/Power fan speed detection CPU overheating warning CPU/System/Power fan fail warning CPU/System fan speed control* Whether the CPU/system fan speed control function is supported will depend on the CPU/system cooler you install. BIOS 2 x 32 Mbit flash Use of licensed AWARD BIOS Support for DualBIOS™ PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b Unique Features Support for @BIOS Support for Q-Flash Support for Xpress BIOS Rescue Support for Download Center Support for Xpress Install Support for Xpress Recovery2 Support for EasyTune* Available functions in EasyTune may differ by motherboard model. Support for Smart 6™ Support for Auto Green Support for eXtreme Hard Drive (X.H.D) Support for ON/OFF Charge Support for Cloud OC Support for Q-Share Bundle Software Norton Internet Security (OEM version)Operating System Support for Microsoft Windows 7/Vista/XPForm Factor ATX Form Factor; 30.5cm x 21.5cm