Height: Wide: Depth: 23mm 72mm 47mm ・Analog audio signals can be input from back of the case (RCA jack). ・With analog output connector. Between Volume and DAC, an analog switch has placed. It switches the analog input and the DAC input. Analog switches is 74HCT4053. Analog input is done from the RCA pin on the back of the case. Analog output is an optional feature because there is no terminal on special case.