RME HDSP 9652 Hammerfall - 3x ADAT digital I/O, 1x SPDIF digital I/O, 1x wordclock I/O (BNC) provided on the included expansion board, 1x ADAT sync-in (9-pole Sub-D) for sample exact data transfers. Re-designed hardware: 52x mono channels (in block-mode), 0% CPU even when using all 52 channels, 130Mb/s transfer rate, newly developed "Enhanced Zero Latency Monitoring", 12x channels record/playback at 96kHz/24bit.