ASUS Z170-K BIOS Z170-K-ASUS-0327 Great-value ATX Z170 with 5X Protection II for dependable stability, fantastic DDR4 performance, and lightning-fast USB 3.1. 5X Protection II – Advanced hardware safeguards for all-round protection DDR4 memory overclocked to 3466MHz Onboard USB 3.1 Gen 2 for 10Gbit/s data transfer speeds Lightning-fast M.2 with PCIe® 3.0 x4 interface Epic gaming audio with LED-illuminated shielding Media-acclaimed UEFI BIOS with EZ Flash 3 Fan Xpert 3 advanced fan controls for ultimate cooling and silent performance