UD-3900 Power Adapter

It is my understanding that the power adapter for the UD-3900 provides 5VDC @ 4A

What are the dimensions of the adapter’s barrel plug? I know common standard sizes are (ODxID in mm): 5.5x2.1, 5.5x2.5, 3.5x1.35, 3.8x1.35, 3.8x1.05, but I haven’t been able to find which one corresponds to the UD-3900 power adapter.

Thanks in advance for your help.


Thank you for contacting Plugable! I would be happy to provide additional information regarding our UD-3900 docking station’s power supply.

For your reference, the barrel plug has the following dimensions:

Outer Diameter (mm): 4.75

Inner Diameter (mm): 1.7

Hopefully this information was helpful, but please feel free to reach out if you have any follow-up questions or concerns.

Thank you!

Plugable Technologies

Thank you so much! This information is very helpful.

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