The H81M-DGS R2.0 is built using ASRock's High Density Glass Fabric PCB that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity. Supports the new 4th Generation Intel Core i7/i5/i3/Xeon/Pentium/Celeron Processors and DDR3 up to 1600 MHz with USB3.0 and DVI / VGA connections.CPUSupports New 4th and 4th Generation Intel Core i7/i5/i3/Xeon/Pentium/Celeron Processors (Socket 1150)Supports Intel Turbo Boost 2.0 TechnologyChipsetIntel H81MemoryDual Channel DDR3 Memory Technology2 x DDR3 DIMM SlotsSupports DDR3 1600/1333/1066 non-ECC un-buffered memoryMax. capacity of system memory: 16GB*Supports Intel Extreme Memory Profile (XMP) 1.3 / 1.2*Due to the operating system limitation the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU there is no such limitation.BIOS32Mb AMI UEFI Legal BIOS with multilingual GUI supportACPI 1.1 Compliant wake up eventsSMBIOS 2.3.1 supportCPU DRAM PCH 1.05V PCH 1.5V Voltage multi-adjustmentGraphicsSupports Intel HD Graphics Built-in Visuals : Intel Quick Sync Video with AVC MVC (S3D) and MPEG-2 Full HW Encode1 Intel InTru 3D Intel Clear Video HD Technology Intel Insider Intel HD Graphics 4400/4600Pixel Shader 5.0 DirectX 11.1Max. shared memory 1792MBTwo graphics output options: support DVI-D and D-Sub ports by independent display controllersSupports DVI-D with max. resolution up to 1920x1200 @ 60HzSupports D-Sub with max. resolution up to 1920x1200 @ 60HzSupports HDCP with DVI-D PortSupports Full HD 1080p Blu-ray (BD) playback with DVI-D Port*Intel HD Graphics Built-in Visuals and the VGA outputs can be supported only with processors which are GPU integrated.**Due to chipset limitation the Blu-ray playback of Intel HD Graphics is only supported under Windows 8 / 8 64-bit / 7 / 7 64-bit / Vista / Vista 64-bit.***Intel InTru 3D is only supported under Windows 8 / 8 64-bit / 7 / 7 64-bit.Audio5.1 CH HD Audio (Realtek ALC662 Audio Codec)LANPCIE x1 Gigabit LAN 10/100/1000 Mb/sRealtek RTL8111GSupports Wake-On-LANSupports LAN Cable DetectionSupports Energy Efficient Ethernet 802.3azSupports PXESlots1 x PCI Express 2.0 x16 Slot (PCIE1: x16 mode)1 x PCI Express 2.0 x1 SlotStorage2 x SATA3 6.0 Gb/s Connectors support NCQ AHCI and Hot Plug2 x SATA2 3.0 Gb/s Connectors support NCQ AHCI and Hot PlugConnector1 x IR Header1 x Print Port Header1 x COM Port Header1 x Chassis Intrusion Header1 x TPM Header1 x CPU Fan Connector (4-pin)1 x Chassis Fan Connector (4-pin)1 x Power Fan Connector (3-pin)1 x 24 pin ATX Power Connector1 x 4 pin 12V Power Connector1 x Front Panel Audio Connector2 x USB 2.0 Headers (Support 4 USB 2.0 ports)Rear Panel I/O1 x PS/2 Mouse/Keyboard Port1 x D-Sub Port1 x DVI-D Port4 x USB 2.0 Ports2 x USB 3.0 Ports1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)HD Audio Jack: Line in / Front Speaker / MicrophoneUnique FeatureASRock APP ShopASRock A-TuningASRock Instant FlashASRock APP ChargerASRock XFast USBASRock XFast LANASRock XFast RAMASRock Crashless BIOSASRock OMG (Online Management Guard)ASRock Internet FlashASRock System BrowserASRock UEFI Tech ServiceASRock DehumidifierASRock Easy Driver InstallerASRock Interactive UEFIASRock Fast BootASRock Restart to UEFIASRock USB KeyASRock FAN-Tastic TuningHybrid Booster:ASRock U-COPBoot Failure Guard (B.F.G.)Good Night LEDSupport CDDrivers Utilities AntiVirus Software (Trial Version) Google Chrome Browser and Toolbar Start8 (30 days trial)AccessoriesQuick Installation Guide Support CD I/O Shield2 x SATA Data CablesHardware MonitorCPU/Chassis temperature sensingCPU/Chassis/Power Fan TachometerCPU Quiet Fan (Auto adjust chassis fan speed by CPU temperature)CPU/Chassis Fan multi-speed controlCASE OPEN detectionVoltage monitoring: +12V +5V +3.3V CPU VcoreForm FactorMicro ATX Form FactorAll Solid Capacitor designOSMicrosoft Windows 8.1 32-bit / 8.1 64-bit / 8 32-bit / 8 64-bit / 7 32-bit / 7 64-bitCertificationsFCC CE WHQLErP/EuP ready (ErP/EuP ready power supply is required)