ASUS Xonar U3, 2.0 channels, 16 bit, 100 dB, USB
ASUS Xonar U3. Audio output channels: 2.0 channels, Audio quality: 16 bit, Line-out Signal-to-Noise Ratio (SNR): 100 dB. Host interface: USB. Dolby technologies: Dolby Headphone, Dolby Pro-Logic IIx, Dolby Virtual Speaker, Chipset: ASUS UA100, Cables included: USB. Width: 1.2" (30.6 mm), Depth: 3.13" (79.5 mm)