Product_description: ['Best in a series of Intel Desktop Boards optimized for the Intel -K family of processors, the Intel Desktop Board DZ77GA-70K sets a new standard when it comes to performance that gamers, overclockers, digital media enthusiasts, and ultimate multi-taskers need most. In combination with the new Intel Visual BIOS, the Intel Desktop Board DZ77GA-70K provides breakaway performance and flexibility. The new Intel Visual BIOS offers graphical interface and animated controls, which allow you to configure settings faster and take full advantage of your Intel -K processors. <BR><BR><b>Features</b> Memory - Four 240-pin DDR3 SDRAM Dual Inline Memory Module (DIMM) sockets, Support for DDR3 1600+/1333/1066 MHz DIMMs, Support for up to 32 GB of system memory Chipset - Intel Z77 Express Chipset with Intel Rapid Storage Technology for RAID 0/1/5/10 Graphics - HDMI for processors with Intel HD Graphics, Support 2 x PCI Express 3.0 x8/16 add-in graphics card (Supports ATI CrossFireX and NVIDIA SLI) Audio - Intel High Definition Audio subsystem in the following configuration - 10-channel (7.1+2 independent multi-streaming) audio subsystem, six analog audio outputs and one optical S/PDIF out port, Supports Dolby Home Theatre V4 LAN support - Dual Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel 82579V Gigabit Ethernet Controller Peripheral interfaces - 4 x Serial ATA 6Gb/s ports (1 eSATA), 4 x Serial ATA 3Gb/s ports, 10 x USB 2.0 Ports, 8 x USB 3.0 Ports, 2 x IEEE 1394a, Consumer infrared receiver and emitter Expansion capabilities - 2 x PCI Express 3.0 x 16, 2 x PCI Express 2.0 x 1, 1 x PCI Form factor - ATX Dimensions - 11.6 x 9.6 Package Contents - Motherboard, ATX 2.2 compliant I / O shield, UV reactive SATA cables, Extreme mouse pad, Bluetooth/ Wi-Fi module, Front Panel USB, Board and back panel I / O layout stickers, Quick reference guide, Intel Express Installer driver and software DVD'] (Page 1)