The Avid Pro Tools|HDX 16x16 Digital System includes:

Pro Tools HD DAW software (Perpetual License, Including One Year Support Plan)

1x iLok USB Smart Key

1x Avid HDX PCIe card

1x HD I/O 16x16 Digital Interface

12-foot DigiLink Mini cable for Pro Tools | HD Series interface connection

Pro Tools | HDX is the new generation of Pro Tools | HD system, providing more power, higher audio quality, and easier ways to record, edit, and mix the most demanding productions. Get more tracks, more headroom, and up to 5x more dedicated DSP power to tackle even the most massive music and post-production projects with the confidence that comes with guaranteed performance.

HD I/O 16x16 Digital
The ultimate choice for post-production studios, and ideal if you need to interface with a digital mixer, dubber, or other digital infrastructure, and want the option to expand the I/O.
Versatile digital I/O:

16 channels of AES/EBU I/O (supports 192 kHz single-wire and dual-wire)

16 channels of TDIF I/O

16 channels of ADAT I/O (supports S/MUX II and IV)

Additional digital I/O:

2 channels of AES/EBU I/O (supports 192 kHz singlewire)

2 channels of S/PDIF I/O

8 channels of ADAT I/O (supports S/MUX II and IV)

Two empty bays for I/O expansion