Based on the technology of DAC's and Essensio USBdac32 North Star Design offers for owners of older North Star DAC's (M192 and EXTREMO DAC) the USB/I2S interface. The box allows the asynchronous coupling of the DAC's via USB to a PC or Mac for playback of music files from 16bit/44, 1 kHz to 32bit/192kHz. This USB/I2S-Box is connected via a USB cable to your computer and a standard network cable to the I2S input of the converter. After installing the supplied driver a bit-perfect copy of the music data from the computer to DAC becomes possible. The data is processed with the same circuits that are used in the DAC's Essensio and USBdac32. A separate power supply for the converter box is not necessary. The device is using the USB cable directly supplied with electricity.