GA-Z68X-UD4-B3 (rev. 1.0) Intel® Z68 Chipset BIOS Z68XUD4.U1E Supports for LGA1155 2nd Generation Intel® Core™ Processors Innovative 16 phase power VRM design for optimum power efficiency Touch BIOS™ delivers No Need for Reboot to more easily modify BIOS settings. 4X performance boost with the Intel® Smart Response Technology Ultra Durable 3 Technology with copper cooled quality for lower working temperature Supports USB 3.0 with superfast transfer rates of up to 5 Gbps GIGABYTE 3x USB Power with On/Off Charge USB ports High speed SATA3 storage interface with superfast 6Gbps link speed SLI and CrossFireX multi-graphics support for ultimate graphics performance Hybrid EFI technology with DualBIOS for 3TB HDD support XHD technology accelerating hard drive performance with ease Supports Dolby Home Theater audio