18 inputs and 22 outputs in a class-compliant, high-speed USB-2 interface.

While this is not strictly a "pedal", it is the audio interface that is appropriate for pedal board (small, low power requirements). The dimensions as listed are correct.

https://motu.com/products/proaudio/ultralite-mk4

• 300 mm wide
• 290 mm heigh

This Pedal is currently available.