- Features of the $499 Celesonic US-20×20 include:20-in / 20-out USB Audio Interface
- Eight Ultra-HDDA Microphone preamps with 56dB of gain and high headroom
- USB 3.0 or 2.0 connection to computer (USB 3.0 requires Windows 10 operating system)
- Supports up to 192kHz / 24-bit audio (at reduced channel count)
- ADAT optical multichannel digital input and output supports S-MUX (8 ch @ 48k, 4 ch @ 96k, 2 ch @ 192kHz)
- Stereo S/PDIF digital in and out
- Word clock in and out
- Two headphone outputs with 70mW/ch output power
- MIDI input and output
- Class-compliant driver supports iOS connection over USB 2.0
- Includes both angled bio-cell side panels and rack ears
- Built-in DSP mixer with parametric EQ and compression per channel, stereo reverb on send/return
- Dedicated power supply included
- Three operation modes: audio interface/ mic pre/ mixer
The specifics are here.