Gigabyte GA-H81M-DS2 mATX MB LGA1150 2xDDR3 VGA GbE LAN 3xPCIe 2xSATA3 2xSATA2 2xUSB3.0 6xUSB2.0 (~GA-H81M-S2PV ~GA-B85M-D3H) CPU Support for Intel® Core™ i7 processors/Intel® Core™ i5 processors/Intel® Core™ i3 processors/Intel® Pentium® processors/Intel® Celeron® processors in the LGA1150 package L3 cache varies with CPU (Please refer 'CPU Support List' for more information.) Chipset Intel® H81 Express Chipset Memory 2 x 1.5V DDR3 DIMM sockets supporting up to 16 GB of system memory * Due to a 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 the size of the physical memory installed. Dual channel memory architecture Support for DDR3 1600/1333 MHz memory modules Support for non-ECC memory modules Support for Extreme Memory Profile (XMP) memory modules (Please refer 'Memory Support List' for more information.) Onboard Graphics Integrated Graphics Processor - Intel® HD Graphics support: 1 x D-Sub port, supporting a maximum resolution of 1920x1200 Maximum shared memory of 1 GB Audio Realtek® ALC887 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. LAN Realtek® GbE LAN chip (10/100/1000 Mbit) Expansion Slots 1 x PCI Express x16 slot, running at x16 2 x PCI Express x1 slots (The PCI Express slots conform to PCI Express 2.0 standard.) Storage Interface Chipset: 2 x SATA 6Gb/s connectors (SATA3 0/1) 2 x SATA 3Gb/s connectors (SATA2 2/3) USB Chipset: 2 x USB 3.0/2.0 ports on the back panel 6 x USB 2.0/1.1 ports (2 ports on the back panel, 4 ports available through the internal USB headers) 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 2 x SATA 3Gb/s connectors 1 x CPU fan header 1 x system fan header