LaCie 2big Dock Thunderbolt 3 User Manual
LaCie 2big Dock Thunderbolt 3 User Manual

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Expansion Port

DisplayPort 1.2

DisplayPort is a digital display interface used to connect a video source to a display device (for example, a computer monitor) as well as other forms of digital data. DisplayPort is backwards compatible with VGA, DVI and HDMI audio/video interfaces through the use of an adapter (not included).

The 2big Dock passes the signal through the Thunderbolt 3 or USB 3.1 connection to the DisplayPort 1.2 expansion port.

  Note on DisplayPort 1.2 and HDMI adapters: The DisplayPort 1.2 on your LaCie 2big Dock does not support DP++ to HDMI adapters. If you do not have a DP 1.2 to HDMI adapter but still want to connect to an HDMI display, it’s recommended that you daisy chain your LaCie 2big Dock to the display using a USB-C to HDMI adapter (not included). This configuration is only possible if the LaCie 2big Dock is connected to your computer via a Thunderbolt cable.

Connecting the DisplayPort

  1. Insert the DP 1.2 end of the cable or adapter into the port on the back of the LaCie 2big Dock until it clicks into place. The cable/adapter is now locked into the DP 1.2 port.


  1.  Connect the VGA, DVI or HDMI adapter to your configured audio/video display.

Disconnecting the DisplayPort

  1. Grasp the DP 1.2 end of the cable or adapter that’s connected to your LaCie 2big Dock.
  2. Hold down the release tab with your thumb, and then pull back to remove the cable from the port.