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How to Unbox and Connect Your Dell 55-inch, 75-inch and 86-inch?

Connect your computer to the display using two cables. One USB cable and one HDMI/Display Port cable. The USB cable enables the display to send touch to the computer.

Side Port View

Dell 75b

Dell 75 4K Interactive Touch Monitor - C7520QT

  • HDMI 1 (1A) must be paired with USB 3.0 Upstream 1 (6A)
  • HDMI 2 (1B) must be paired with USB 3.0 Upstream 2 (6B)
  • HDMI 3 (1C), DisplayPort (2), and VGA (3) must be paired with USB 3.0 Upstream 3 (6C)
  • We recommend using DisplayPort (2) with USB 3.0 Upstream 3 (6C)
Dell 86b

 

Dell 86 4K Interactive Touch Monitor - C8621QT

  • HDMI 1 (1A) must be paired with USB 3.0 Upstream 1 (5A)
  • HDMI 2 (1B) must be paired with USB 3.0 Upstream 2 (5B)
  • HDMI 3 (1C), HDMI 4 (1D), and DisplayPort (2) must be paired with USB 3.0 Upstream 3 (5C)
  • We recommend using DisplayPort (2) with USB 3.0 Upstream 3 (5C)