From desktop interfaces to studio racks, Focusrite's range of USB audio interfaces offers various numbers of channel inputs that can be mains or bus powered.
The Steinberg UR22C USB 3 Audio Interface is a portable interface that provides you with 32-bit/192kHz reference-grade audio fidelity making it
Steinberg UR22C USB 3 Audio Interface
M-Audio M-Track Duo USB Audio Interface
USB-C Audio Interface w/USBAdt
M-Audio M-TRACK DUO Audio Interface with Cables
Steinberg UR12 USB Audio Interface
Donner USB Audio Interface, Guitar Adapter Interface for Android Smartphones, iPhone, Mac, Tablets, and PC, with USB-C, Lightweight Audio Adapter with 48V Power for 192kHz, 24 Bit Recording : Musical Instruments
8 Best USB Audio Interfaces for Music Production, Podcasting & More
6-channel USB 2.0 Audio Interface with 4 Analog and 2 S/PDIF Digital Ins/Outs, MIDI In/Out, 2 x 1/4 Headphone Outputs, and Software Suite
Native Instruments Komplete Audio 6 Mk2 USB Audio Interface
Universal Audio Volt 476 USB Audio Interface