The CU1A from Behringer is a stereo AD/DA converter in Eurorack format. The module is connected to the computer via the USB-C port, allowing a stereo signal from the DAW to be integrated into the modular system and recorded on the computer. The level of each audio input and output can be switched between -10 dB or +4 dB using the dip switch on the back. The adjustable headphone output with 3.5mm stereo jack allows the audio signal to be conveniently monitored. The module is powered exclusively via the USB-C connection, so no power consumption is required at Eurorack . The CU1A could therefore easily be operated together with other passive modules in a Case without a power supply unit.