ASUS K20CE N3700-A-ASUS-K20CE-0304 BIOS Designed for 4K/UHD entertainment and super-fast connectivity Windows 8.1 or other editions available Intel® Pentium® processors for energy-efficient, productive multitasking. NVIDIA® or AMD discrete graphics to handle most graphics-intensive tasks. Space-saving 10-liter chassis Supports 4K/UHD resolution displays. USB 3.1 transfers data 20x faster than USB 2.0. ASUS SonicMaster audio technology and intuitive AudioWizard interface for enhanced sound. Ultra-quiet performance with noise levels below 23dB at idle.