Asus Sound Card Xonar Essence STX PCI-E 124dB SNR/Headphone Amp card for Audiophiles. * Audio Chipset ASUS AV100. * Channels Virtual 7.1. * 118 dB Input Signal-to-Noise Ratio ,124dB for Front-out,110dB for Headphone-out dB. * High-bandwidth Coaxial/TOS-Link combo port supports 192KHz/24bit.