Probably one that would accept the output of the DAC. A coax input, looks like an RCA socket, also called S/PDIF (Sony/Phillips Digital Inter Face).
Mine is an Aardvark LX-6
Of course, that does not apply if another interface is used from the ADC - such as USB.
Needless to say (I trust), whatever output your DAC uses, your computer requires a corresponding input.
Mike -- mrichter@xxxxxxx http://www.mrichter.com/