CPU - Supports Intel i3 / i5 / i7 based processors in LGA1156 package. Chipset - Intel P55 Chipset - Supports QPI up to 6.4GT/s - Hi-Speed USB (USB2.0) controller, 480Mb/sec. - 6 SATAII ports with transfer rate up to 3Gb/s. - PCI Master v2.3, I/O APIC. - ACPI 2.0 compliant. - Serial ATA RAID 0/1/5/10. - Integrated AHCI controller. Main Memory - Supports four unbuffered DIMM of 1.5 Volt DDR3 1066/1333/1600*/1800*/2000*/2133* (OC) DRAM, 16GB Max - Supports 1Gb/ 2Gb/ 4Gb DRAM size - Supports Dual channel mode Slots - 2 PCI Express gen2 x16 slots - If two graphics cards are installed at PCI_E1 & PCI_E2 slots, these two PCIE x16 lanes will auto arrange from x16/ x0 to x8/ x8 - supports ATI Crossfire - 3 PCI Express gen2 x1 slots - 2 PCI slots, support 3.3V/ 5V PCI bus Interface On-Board IDE/SATA - One Ultra DMA 66/100/133 IDE controller integrated in JMicron 363. - Supports PIO, Bus Master operation modes. - Can connect up to two Ultra ATA drives. - SATAII /SATAIII controller integrated in Intel P55/Marvell SE9128 / JMicron 363 chipsets - Up to 3Gb/s transfer speed. - Supports six SATAII ports by P55 - Supports two SATAIII ports by Marvell SE9128, up to 6Gb/s, support SATA RAID 0/1. - Supports two eSATA ports (back) by JMicron 363, support SATA RAID 0/1/JBOD. - Supports AHCI controller with AHCI / SATA RAID 0/1/5/10 by P55. MSI Reminds You... - The RAID setup floppy disk is optional depending on the districts. You can download the files from the website to make the setup disk. Audio - Chipset integrated by Realtek ALC889 - Flexible 8-channel audio with jack sensing - Compliant with Azalia 1.0 Spec - Meet Microsoft Vista Premium spec LAN - Supports One LAN PCI-E Gb LAN controller by Realtek 8111DL. IEEE1394 / FireWire - VIA VT6315N chipset - Supports up to two 1394 ports. (Rear panel x1, pinheader x1) - Transfer rate is up to 400Mbps. Internal I/O Connectors - ATX 24-Pin power connector - 8-pin ATX 12V power connector - CPU x1 / System x 3 FAN connectors - CD-in connector - Front panel audio connector - Front panel connector - 1 x chasis intrusion connector - 2 x USB 2.0 connectors - 6 x Serial ATAII connectors - 2 x Serial ATAIII connectors - 1 x ATA133 connector - 1 x IEEE1394 connector support additional 1 port - 1 x Serial port connector - 1 x Parallel port connector - 1 x Power Button - 1 x Clear CMOS jumper - 1 x SPDIF-out connector - 1 x TPM module connector - 1 x OC Genie Button - 2 x Direct OC Buttons MSI Reminds You... - The floppy disk cable will be optional. Back Panel I/O Ports - 1 x PS/2 Mouse/Keyboard port - 8 x USB 2.0 ports - 1 x Clear CMOS button - 1 x Coaxial SPDIF port - 1 x Optical SPDIF port - 1 x IEEE1394 port - 1 x RJ45 LAN Jack - 2 x USB 3.0 ports - 1 x 6 in 1 audio jack BIOS - The mainboard BIOS provides "Plug & Play" BIOS which detects the peripheral devices and expansion cards of the board automatically. - The mainboard provides a Desktop Management Interface(DMI) function which records your mainboard specifications. Dimension - 30.5cm(L) x 23.0cm(W) ATX Form Factor