RME Fireface UC USB 18-in / 18-out Audio Interface with Power Supply | eBay
Amazon.com: RME Digiface USB USB Digital Audio Interface with 4 Optical Inputs/Outputs and Bus Power, 32-in/32-out, 24-bit/192kHz : Musical Instruments
RME Fireface UCX II Audio Interface | FrontEndAudio.com