THUNDERBOLT AUDIO INTERFACE Red 16Line is a 64-in/64-out Pro Tools HD and Thunderbolt 3 dual audio interface with ultra-low latency AD/DA converters, Red Evolution mic preamps, with 121dB dynamic range, ultra-low latency roundtrip, and expansion over Ethernet for networked audio. Red 16Line provides both Digilink and Thuntherbolt connectors. Now it's easier than ever to switch from Pro Tools to a second DAW, without having to reconfigure your audio options. Simply change the 'host mode' from the remote control software or from the device's front panel and switch DAWs in just a few seconds.