The HDSP 9652 offers 3 x ADAT optical I/O, ADAT-Sync In, SPDIF I/O and word clock I/O. On top, there are 2 MIDI I/Os and TotalMix, a DSP-based real-time mixer/router, with hardware-calculated level metering and complete MIDI remote capability.The HDSP 9652 also supports Expansion Boards (EXB). Two internal ADAT inputs and two internal ADAT outputs allow you to realize up to 16 analog inputs, 16 analog outputs, or up to two TDIF ports directly inside the computer.Thanks to its unique Zero CPU Load technology Hammerfall DSP guarantees highest performance and lowest latency together with full flexibility!The HDSP 9652's Secure BIOS Technology allows to perform hardware updates via software/driver without any risk.