http://www.esi-pro.com/viewproduct.php?pid=7&page=1 - 1 adat tos-link i/o (8 channels) - 1 tdif/r-bus i/o(dsub25p) - supports 16 and 24-bit resolution - supports 32,44.1, 48 (adat) 64, 88.2, 96 khz(tdif, r-bus) sample rate - 1 in / 1 out midi port ,16 midi channels - s/pdif digital coaxial i/o - midi i/o can be used for mtc sync and mmc devices - on-board s/pdif cd digital in - on-board word clock i/o(fs) - on-board external clock i/o(256fs) - microsoft windows 98se/ me/ 2000/ xp