This is the detail page for one of over 225 audio interfaces covered in The Computer Audio Interface Guide, which also lists where to buy this interface used.
2 ch analog in (phono/line), 2 ch analog out (RCA, 1/8"), optical i/o, S/PDIF in, phono preamp, low-cut filter EQ, USB or AC powered, 1/8" headphone out. (Formerly named USB MicroPre)