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.
4 analog in (2 mic XLR/TRS combo, 2 RCA), 4 analog output (1/4" TRS +4dBu), SPDIF optical i/o, MIDI i/o, soft limiter, headphone out, can be bus powered. Branded as "Edirol by Roland."