Apogee Electronics have been renowned for their development of audio converters and audio interfaces certainly since I came into the industry in the 90s. Primarily it is the sound quality that has carried the name ..
The Symphony I/O mk2 series offers many routing solutions in a modular format.

Best AD/DA conversion of any Thunderbolt™ audio interface
Up to 32 channels of modular analog I/O with optional mic pre-amps
Choice of Thunderbolt™ (Mac), Pro Tools® HD (Mac/PC), Dante™+ Pro Tools®
HD (Mac/PC, or Waves SoundGrid (Mac/PC) connectivity.
Ultra-low latency performance – 1.35 ms with Thunderbolt and Logic Pro X
Advanced Monitor Workflows featuring plug and play Atmos configuration
All new, highly customizable Symphony Control software provides easy access to all I/O parameters.