The NAD D 1050 USB DAC is the best way to add Computer Audio and HD Digital to your component hi-fi system. Both the digital and the analog circuits are highly optimized and based on techniques developed over 40 years of NAD audio engineering excellence. The digital inputs cater to many different digital sources. SPDIF inputs support balanced AES/EBU, coaxial and optical connectors. The USB input is very special; its asynchronous operation mode uses the D 1050’s high precision clock to control the output of the connected USB device for lowest possible jitter. It also supports USB Audio Codec 2.0 allowing 192kHz signal transmission.