This is a 24 bit (20 bit effective) 96 kHz card, with 2 analog and 2 digital (S/PDIFF, AES/EBU, ADAT, optical (toslink) in/outputs. It has been tested by one of our customers, Peutz & Associés B.V. They found that the signal to noise ratio is approx -130 dB and the lower frequency limit approx. 5 Hz (-6 dB) without compensation. The 2 analog and 2 digital in/outputs are usable at the same time. Several cards can be linked for synchronous multi-channel measurements. See http://www.sekd.com/Prodif96/Prodif96.htm.