Z97-K R2.0 Z97-K R2.0 BIOS 0803. High-value Z97 ATX packed with M.2, high-clarity Crystal Sound 2 and enduring 5X Protection for enhanced performance and potent entertainment Proven quality - 5X Protection. 1000+ compatible devices. 7000+ validation hours. Crystal Sound 2 - Flawless audio that makes you part of the game Speed up your system with lightning-fast 10Gb/s M.2 Fan Xpert 2+ - Ultimate cooling and quietness Media-acclaimed UEFI BIOS with new EZ Tuning Wizard ASUS HomeCloud - A digital PC hub perfect for sharing and home theater Upgrade flexibility to ultimate-speed 10Gbit/s with ASUS USB 3.1 Card