ASRock XFast USB Technology redefines the new standard in high performance computing. According to the below graph it shows that the ASRock XFast USB technology can even boost USB 3.0 performance up to 97.7%! C.C.O. stands for Combo Cooler Option is another exclusive hardware design on ASRock boards. C.C.O. provides the flexible options to adopt different CPU cooler types and matches your socket LGA775 LGA1155 / LGA1156 CPU cooler in the respective holes. Once again ASRock has successfully expanded the utilization of PCB by the exclusive C.C.O. design. ASRock DuraCap featuring all solid capacitor design 100% Japan-made high-quality Conductive Polymer Capacitors which can last 2.5 times longer lifespan. By adopting digital Pulse-width modulation (PWM) the ASRock motherboard can provide CPU Vcore voltage more efficiently and smoothly. Compared to analog PWM digital PWM can optimize the CPI power solution and provide a proper and stable Vcore for the processor. THX TruStudio PRO solution ensures you the premium audio quality effects and features for PC systems equipped with onboard audio.