The Fastmusic Box Pro – DI kit includes
- aluminum enclosure
- Hifiberry soundcard ADC+DAC Stage
- extension board with
- two XLR inputs (with optional 48V phantom power)
- two XLR outputs
- headphone output 6,3mm
- electronic PCB for temperature-controlled 5V fan.
In addition, you need
- 7″ display with touchscreen
- Raspberry PI 4b
- micro SD 32GB
- 5.1V 3A power supply
- Fastmusic Box OS license
Further instructions are here (PDF).