50 possible inputs and outputs

Supports up to 16 simultaneous channels of high definition I/O

Extremely flexible analog and digital I/O

Card option bay for analog or digital I/O expansion with 192 AD, 192 DA, or 192 Digital cards

24-bit / 192 kHz A/D & D/A conversion

Sample rates supported: 192, 176.4, 96, 88.2, 48, and 44.1 kHz

Comes with a wide range of digital I/O, including 8 channels of AES/EBU I/O, 8 channels of TDIF I/O, 16 channels of ADAT I/O and 2 additional channels of AES/EBU or S/PDIF I/O

Word (1x) and Slave Clock (256x) input/output

Switchable, real-time sample rate conversion on digital inputs on the 192 Digital card allows easy streaming of digital signals at any sample rate

Soft-Clip Limiter allows higher levels to disk for punchier, hotter recordings

Expansion Port allows for direct connection of another 192 I/O or 96 I/O

Legacy Peripheral port allows for connection of 888/24, 882/20, 1622, or 24-Bit ADAT Bridge I/Os (at 48 kHz or lower sample rate)

A/D

Sample Rate: 44.1, 48, 88.2, 96, 176.4, 192 kHz ±10%

Dynamic Range: 120 dB (A-weighted), 118 dB (unweighted); see notes 1 and 2

THD+N: 0.00035% (-109 dB); +21 dBu @ 997 Hz; see note 1

THD+N: 0.00035% (-109 dB); +21 dBu, 20 Hz &endash; 20 kHz; see note 1

Frequency Response: ±0.05 dB @ +2 dBu, 20 Hz &endash; 20 kHz; see notes 1 and 3

D/A

Sample Rate: 44.1, 48, 88.2, 96, 176.4, 192 kHz ±10%

Dynamic Range: 118 dB (A-weighted), 115 dB (unweighted); see notes 1 and 4

THD+N: 0.00056% (-105 dB); -1 dBFS @ 997 Hz; see note 1

Frequency Response: ±0.05 dB, -20 dBFS, 20 Hz &endash; 20 kHz; see notes 1 and 3

Sample Rate = 48 kHz, Noise BW = 22 Hz &endash; 20 kHz unless otherwise noted, Tamb = +25 C

Note 1 &endash; Measurement made using +4 dBu inputs or outputs
Note 2 &endash; ADC measured with analog input at -38 dBu @ 997 Hz
Note 3 &endash; Measured relative to level at 1 kHz
Note 4 &endash; Measured with digital input at -60 dBFS @ 997 Hz

96, 88.2, 48 and 44.1 kHz sample rates and 24-bit resolution

upports up to 16 channels of high definition I/O

8 channels of 24-bit /9 6 kHz analog I/O (TRS)

8 channels of ADAT optical I/O (TOS-Link)

1 AES/EBU I/O pair (XLR)

1 S/PDIF I/O pair (RCA)

Expansion Port allows for direct connection of another 96 I/O

Legacy Peripheral port allows for connection of 888 24, 882 20, 1622, and 24-Bit ADAT Bridge I/Os (at 48 kHz or lower sample rate)

Of the 20 available I/O connections, 96 I/O supports up to 16 channels of simultaneous I/O. All channels may be custom configured on a pair-wise basis; so, for example, input channels 1 & 2 can be selected to accept input from the S/PDIF digital inputs while input channels 3 & 4 can be set to take signals from the analog inputs, channels 5 & 12 from the ADAT inputs, etc.
The eight analog I/O connections on 96 I/O come in the form of balanced 1/4" TRS connectors, supporting 24-bit resolution and sample rates up to 96 kHz. Eight channels of 24-bit ADAT I/O are also included, allowing you to incorporate ADAT optical devices directly into Pro Tools without needing to purchase a separate ADAT I/O box. The ADAT optical connections can be used simultaneously alongside the eight channels of analog I/O, or can be switched into two-channel S/PDIF optical mode.
96 I/O offers additional AES/EBU and S/PDIF digital connections that, along with the Word Clock I/O, support 96 kHz single wire transmission. Of course, the digital connections on 96 I/O include support for lower sample rates, such as 44.1 and 48 kHz, allowing for an easy link to consumer and professional DAT recorders, CD players and other digital devices.
HD Core and HD Process cards support up to 32 channels of I/O using Digidesign audio interfaces. The 96 I/O has been designed to allow for daisy chaining of interfaces to take full advantage of the expanded I/O count permitted with HD Core and HD Process cards.
The Expansion Port on the rear of 96 I/O allows you to use the supplied DigiLink cable to connect another 96 I/O for 16 more channels of high-definition input and output. Alternatively, a Legacy Peripheral port is also provided, enabling you to expand I/O capacity at 44.1/48 kHz using the 888 24 I/O, 882 20 I/O, 1622 I/O or the 24-Bit ADAT Bridge I/O.
The newest Pro Tools software supporting Pro Tools HD systems incorporates a new auto-identification and auto-configuration scheme upon launch of Pro Tools software. This eliminates the need to declare which interface is being used with each HD Core or HD Process card, making installation, reconfiguration and system setup faster and easier than ever.

A/D

Sample Rate: 44.1, 48, 88.2, 96 kHz ±10%

Dynamic Range: 115 dB (A-weighted), 112 dB (unweighted); see notes 1 and 4

THD+N: 0.0007% (&endash;103 dB); +17 dBu @ 997 Hz; see note 1

Frequency Response: ±0.05 dB @ &endash;2 dBu, 20 Hz &endash; 20 kHz; see notes 1 and 2

D/A

Sample Rate: 44.1, 48, 88.2, 99 kHz 96 kHz ±10%

Dynamic Range: 114 dB (A-weighted), 112 dB (unweighted); see notes 1 and 3

THD+N: 0.0013% (&endash;97 dB); &endash;1 dBFS @ 997 Hz; see note 1

Frequency Response: +0.1/&endash;0.2 dB; &endash;20 dBFS, 20 Hz &endash; 20 kHz; see notes 1 and 2

Sample Rate = 48 kHz, Noise BW = 22 Hz &endash; 20 kHz unless otherwise noted, Tambient = +25 C

Note 1 &endash; Measurement made using +4 dBu inputs or outputs
Note 2 &endash; Measured relative to level at 1 kHz
Note 3 &endash; Measured with digital input at &endash;60 dBFS @ 997 Hz
Note 4 &endash; ADC measured with analog input level at &endash;42 dBu @ 997 Hz