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January 26th, 2025 20:35
U2421E, HP EliteBook 640 G10, USB-C cable, USB 2.0 dilemma
Please, I realized that with the usb-c cable that came with the package with the monitor, I only get usb 2.0 speed. I use the monitor as a USB Hub, the laptop is connected with that cable for charging, video and audio signal transmission as well as for data transmission. Given that I don't want to risk using untested cables and cause damage to both the monitor and my laptop, which cable can you recommend that supports both power delivery and usb 3.0 or 3.1. Let me mention that the laptop consumes 65W for power supply.
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Chino de Oro
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January 27th, 2025 08:33
Access the monitor's On Screen Display (OSD) menu and navigate to the setting for USB-C prioritization. Select High Data Speed option. That will prioritize data transfer over video bandwidth and improve the transmission speed from the USB hub of your monitor.
Avram Vukas
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January 27th, 2025 10:48
@Chino de Oro Thanks for the reply. I have a question, will this setting have a negative effect on battery charging, and on the video signal that goes from the computer to the monitor (FullHD)?
DELL-Chris M
Community Manager
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January 27th, 2025 13:37
You need to post the specific monitor model.
Not all USB-C monitors have the USB-C prioritization in the Menu.
No, USB-C prioritization High Data Speed would not affect a FullHD 1920x1080 monitor nor laptop battery charging.
USB-C prioritization High Data Speed could affect higher resolution monitors and daisy chained monitors resolutions.
Avram Vukas
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January 27th, 2025 15:00
Yes, I didn't list my monitor model. It is a Dell Ultrasharp U2421E. and now I checked, it seems that my model does not have that option in the settings.
It's just strange to me that Dell doesn't put a proper cable with the monitor, so that it can use all its advantages. This is how we are forced to buy cables from third-party manufacturers, and we always worry whether the cable will be adequate, and above all, safe for use.
DELL-Chris M
Community Manager
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January 27th, 2025 15:30
The online U2421E User's Guide and sales page Tech Specs shows;
Cables shipped =
DisplayPort to DisplayPort
USB-C to USB-C
USB-C to USB-A
Video in ports =
HDMI
DP
USB-C
Avram Vukas
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January 27th, 2025 15:41
@DELL-Chris M Indeed, the monitor comes with a USB-C to USB-C cable, but with support up to only 480 Mbit/s. I ask the question why then USB A and C input with speed 3.1? How can those speeds be used?
DELL-Chris M
Community Manager
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January 27th, 2025 16:01
What specific Laptop model?
Avram Vukas
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January 27th, 2025 16:20
@DELL-Chris M The laptop model is HP Elitebook 640 g10
DELL-Chris M
Community Manager
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January 29th, 2025 15:22
@mike533 The U2421E doesn't have this "USB-C prioritization" option in the Menu. The OP stated, "It is a Dell Ultrasharp U2421E. and now I checked, it seems that my model does not have that option in the settings.".