TASCAM’s new Celesonic US-20×20 packs 20 channels of USB 3.0/2.0 connectivity analog and digital I/O into a single rack space. Eight Ultra-HDDA microphone preamps provide 56dB of gain and high headroom and up to ten channels of digital I/O are included on ADAT and S/PDIF connectors, with word clock also provided for use with external clocks like TASCAM’s CG-1000. MIDI I/O allows use with controllers and synthesizers, and sample rates up to 192kHz/24-bit are supported. A built-in DSP mixer includes parametric EQ and compression on every channel and a stereo reverb send for great-sounding monitor mixes. The DSP mixer can also be used as a live mixer or submixer with computer control. The US-20×20 has three modes: audio interface, digital mixer, and 8-channel digital mic preamp.

• 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.