Marian Trace Alpha, PCI-Audio Interface, 24-Bit / 192 kHz, Zero-Latency-Monitoring, Integrated DSP-Mixer, Realtime Hardware Level Meter, Support for DAT-Marker, Connections: 2x Line-Input ¼" TRS balanced, 2x Line-Output ¼" TRS balanced, S/PDIF Digital I/O coax, 1x MIDI-In, 3x MIDI-Out, TDM-SyncBus, Sample formats: 8, 16, 20, 24, 32 Bit Mono/Stereo, Sample frequency (Lock Range) 32 kHz up to 192 kHz, PCI 2.3 Card, 32 Bit, 3.3V/5V, compatible to Windows XP/Vista/7/8 (32- and 64-Bit), Windows 2000/Server (32-Bit), Mac OSX 10.4, 10.5 and 10.6.