ASUS Z87 PRO LGA 1150 Motherboard Dual Intelligent Processors 4 with 4-Way Optimization 4-Way Optimization - One Click and Done! Top-up Performance, Efficiency, Digital Power, and System Cooling Wi-Fi GO! - Connect Your Life ? The Perfect Fusion of Desktop, Smartphones and Pads Fan Xpert 2 - The Most Customizable Fan Controls Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking.High quality 112 dB SNR stereo playback output (Line-out at rear) and 104 dB SNR recording input (Line-in)