4K at 60 Hz Support Condition on Dell DA20 Adapter
Summary: This article provides information about the Dell DA20 multi-port in which the situation can support 4K @60Hz.
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Symptoms
The customers may report asking if the Dell DA20 can run at 4K at 60 Hz.
Figure.1 Dell DA20
Cause
The DA20 adapter can support 4K at 60 Hz but depends on the capability of the laptop graphics. The laptop must be able to support HBR3 and HDMI 2.0.
Resolution
When the DA20 adapter is connected to a laptop with HBR2 capability, bandwidth has to be shared between video and USB data the max video you get is 4K at 30 Hz.
If you use a laptop with HBR3 and HDMI 2.0 capability, the DA20 adapter you can get 4K at 60 Hz. Bandwidth is greater on HBR3 compared with HBR2.
Note: In the following DisplayPort (DP) Alt mode setups, bandwidth is not shared between video and Data and it supports 4K @60Hz.
- If you use a Dell dongle adapter Type C to HDMI Part# 625RG and your laptop is HBR2 and supports HDMI 2.0 you get 4K at 60 Hz.
- If you use a Dell dongle adapter Type C to DP Part# YJ3Y6, you get 4K at 60 Hz
More source:
The DA20 Multi-Port USB Type-C Adapter is a Drop in Box for Certain Precision and XPS Laptops
Affected Products
Precision 5550, Precision 5750, XPS 15 9500, XPS 17 9700Article Properties
Article Number: 000180283
Article Type: Solution
Last Modified: 19 Apr 2025
Version: 5
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