E-MU 0204 USB Audio Interface. The 0204 provides 2 analog inputs, 4 analog outputs and brings an unparalleled level of USB audio quality to the Mac or PC, with pristine 24-bit/192kHz A/D and D/A converters, ultra-low jitter clock, and Class-A, ultra-low noise mic/line/hi-Z preamps. The signal-to-noise specs of the E-MU 0204 USB are unmatched by any other USB interface on the market! From its plug-and-play functionality and hands-on ergonomic design to professional features like zero-latency direct monitoring, the USB will forever change your expectations of USB audio.