The P3421W does not have a DP out port, so attaching a second monitor to it is not possible.
The additional 27" monitor would have to be connected directly to one of the laptops video out port. So that one laptop would be sending video signal to both the P3421W and the 27" monitor.
DELL-Chris M
Community Manager
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56.9K Posts
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November 3rd, 2022 06:00
The P3421W does not have a DP out port, so attaching a second monitor to it is not possible.
The additional 27" monitor would have to be connected directly to one of the laptops video out port. So that one laptop would be sending video signal to both the P3421W and the 27" monitor.
daroend
3 Posts
0
November 13th, 2022 08:00
Thank you for your answer!