Dell 6-in-1 USB-C Multiport Adapter DA305 Usage and Troubleshooting Guide

Summary: The following article provides information about the Dell DA305 6-in-1 USB-C Multiport Adapter. You can reference each section to learn more about the features of the Dell DA305 6-in-1 USB-C Multiport Adapter and how to use it. ...

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Instructions

Table of Contents:

  1. What is in the Dell DA305 6-in-1 USB-C Multiport Adapter box?
  2. 6-in-1 USB-C Multiport Adapter Features
  3. Setting up your 6-in-1 USB-C Multiport Adapter
  4. Troubleshooting
  5. Additional Information
 

Features a wide variety of ports. The compact 6-in-1 Dell USB-C Multiport Adapter offers video, network, data connectivity, and up to 90 W power pass-through for your laptop.

Product Shot

(Figure.1 Work faster and easier with the Dell DA305 6-in-1 USB-C Multiport Adapter)

 

What is in the Dell DA305 6-in-1 USB-C Multiport Adapter box?

 

What is in the box?

(Figure.2 Dell DA305 6-in-1 USB-C Multiport Adapter Box Contents)

1 6-in-1 USB-C Multiport Adapter 2 Documents
 


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6-in-1 USB-C Multiport Adapter Features

 

Top View

Front View

(Figure.3 Dell DA305 6-in-1 USB-C Multiport Adapter Top View)

Front View

Left View

(Figure.4 Dell DA305 6-in-1 USB-C Multiport Adapter Front View)

Product Features

DA305 Features

(Figure.5 Dell DA305 6-in-1 USB-C Multiport Adapter Product Features)

1 USB Type-C 3.2 Gen2 Connector (Up to 90 W power pass through) 2 RJ-45 Ethernet Connector
3 USB Type-A 3.2 Gen2 Connector 4 USB Type-A 3.2 Gen2 Connector
5 HDMI 2.0 Connector 6 DisplayPort Connector
 

6-in-1 USB-C Multiport Adapter Features

  • Plug and Play Compliant
  • Fast role swap
  • 90 W power delivery


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Setting up your 6-in-1 USB-C Multiport Adapter

 

Compatibility

Operating Systems:

  • Windows 11 64-bit, Windows 10 64-bit, Google Chrome, Red Hat Enterprise Linux, Ubuntu, and Apple macOS

Connecting the 6-in-1 USB-C Multiport Adapter

The Dell DA305 6-in-1 USB-C Multiport Adapter uses a 4.7 in integrated USB Type-C cable to connect to your Desktop or Laptop computer.

Connection Method

(Figure.6 USB Type-C Connector)

Using the Adapter

  1. Using your fingertips, grip the bottom section of the adapter in one hand and grasp the top section in your other hand.

  2. With the integrated USB Type-C cable facing you:

    1. Turning it one way releases the integrated cable to be plugged to a computer.

    2. Turning it the other way spools the integrated cable in and secures the cable when not in use.


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Troubleshooting

 

Problems Possible solutions
Multiple displays are not working
  • The DA305 supports only a single display out at the one time.
Unable to read and write to an external SSD, HHD or Optical (CD, DVD, or Blu-Ray) drive when connected to the DA305
  • Some external devices require higher power than the DA305 can supply.
  • When the DA305 is not connected to a power pass-through port, you should connect the device directly to the computer.
  • When the DA305 is connected to a power pass-through port, we recommend only connecting one device through the adapter. Connect any additional devices directly to the computer.
Power Surge Message appears when a device is connected to the DA305
  • The device that you connected requires more power than the DA305 can supply.
  • Disconnect any other devices connected through the adapter.
  • For peripherals that require more power, we recommend you connect them directly to the computer.
Wake on LAN, PXE boot, and MAC address pass-through do not work on the DA305
  • The DA305 does not support these features.
Resolution on monitor is lower than 4K 30 Hz when connected to the HDMI, DisplayPort, of the DA305
  • Check that the monitor is capable of supporting 4k 30 Hz.
  • 4K at 30 Hz is the maximum resolution available on computers that support below DisplayPort 1.3, with a capable monitor.
Video and/or Audio performance issues
  • Ensure that the computers drivers are up to date from the Dell Support site.
No Video on the monitor that is connected to the DA305
  • Ensure that all the cables are connected properly.
  • Disconnect the monitor from the adapter and wait for ten seconds before connecting it again.
Video is distorted or pixelated on the attached monitor
  • Ensure that all the cables are connected properly.
  • Check that the monitor and computer are set to the correct screen resolution.
The DA305 is not charging your computer or is charging really slowly. You may see a yellow triangle with an exclamation mark on the battery status icon.
  • The DA305 supports 90 W maximum through the power pass-through.
  • The DA305 reserves 15 W, so your computer gets 15 W less from the power source. This can cause the slow charging message to appear.
  • It is recommended that you connect the power source directly to the computer and not through the adapter.
 


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Additional Information

Learn how to use and troubleshoot problems with the Multiport Adapter that you use with your computer. You can find information about Troubleshooting steps, How-To guides and relevant Support Videos for assistance on the Dell Support Site. 

For the Dell DA305 6-in-1 USB-C Multiport Adapter User Guide, browse to the Dell DA305 6-in-1 USB-C Multiport Adapter Online Manual Page. Touch or click View PDF to the right of 6-in-1 USB-C Multiport Adapter User Guide. It is located in the Manuals and Documents section of the support page.

To troubleshoot wired network issues using the DA305 6-in-1 USB-C Multiport Adapter go to the following knowledge base article: Troubleshooting Ethernet Problems using the Dell DA305 and DA310 Multiport Adapters


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Affected Products

Dell 6-in-1 USB-C Multiport Adapter - DA305
Article Properties
Article Number: 000198820
Article Type: How To
Last Modified: 18 Jul 2025
Version:  5
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