Avid S3 Dock Link With MagnetsEasily and securely attach Pro Tools S3 and Pro Tools Dock together into one linked control surface. The Avid S3 Dock Link plates easily attach to the underside of your S3 surface, enabling you to connect your Dock right alongside it. Simply set the Dock into the link bracket and notches for a secure hold that won't budge during normal mixing use, but can be easily uncoupled at any time. Includes: Avid S3 Dock Link plates Magnets and screws