Dell UltraSharp 42.51" 4K Monitor - Manual (Page 11)

About your monitor | 11
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Label Description Use
1
Security lock slot
(based on Kensington
Security Slot
TM )
Secures monitor with security lock (security lock not
included).
2
Power connector
Connect the power cable.
3
HDMI 1 port
Connect your computer with the HDMI cable.
4
HDMI 2 port
5
DisplayPort in 1
Connect your computer with the DisplayPort cable.
6
DisplayPort in 2
7
USB-C 1 upstream port
(Video + Data)
Connect to your computer using the USB-C cable.
The USB-C 1 upstream port offers the fastest
transfer rate and the alternate mode with DP 1.4
supporting maximum resolution of 3840 x 2160 at 60
Hz
, PD 20 V/4.5 A, 15 V/3 A, 9 V/3 A, 5 V/3 A.
NOTE: USB-C is not supported on Windows
versions that are prior to Windows 10.
8
Audio line-out port
Connect speakers to playback audio through HDMI,
USB-C (Video + Data) or DisplayPort audio channels.
Only two-channel audio is supported.
NOTE: The audio line-out port does not support
headphones.