[[http://www.creative.com/emu/products/product.aspx?pid=20022|E-MU 0404 PCIe]] has: * Two 1/4" Unbalanced Inputs * Two 1/4" Unbalanced Outputs * 24-bit/96kHz S/PDIF In/Out (switchable to AES/EBU) * MIDI In/Out As of [[http://linuxmusicians.com/posting.php?mode=reply&f=6&t=11346#pr43707|August 2013]] reported as not supporting higher than 48kHz or duplex 24 bit. [[https://code.google.com/p/emutrix/|Emutrix]] mixer should support this interface. See [[http://www.alsa-project.org/main/index.php/Matrix:Module-emu10k1|ALSA Module-emu10k1]] {{tag>hardware_linux}}