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
Cranborne Audio - More I/O For Your Interface
ESI - Product Archive: GIGAPort DG
Arturia AudioFuse 8Pre 8-Channel USB-C Audio Interface With 8 Mic Preamps, ADAT I/O | Full Compass Systems
MOTU LP32 - 32X32 USB / AVB-TSN | Pro Audio Solutions
RME Fireface UCX II 20-In/20-Out USB 2.0 Audio Interface w/ 2 Preamps
RME FIREFACE UCX II 40-Channel 192 kHz Advanced USB 2.0 Audio Interface with MIDI / ADAT / AES / EBU & SPDIF I/Os
RME Digiface USB 24 Bit / 192 kHz 66-Channel USB 2.0 Audio Interface - Westlake Pro