Users Guide

| 


U2421HE: https://eprel.ec.europa.eu/qr/344902
U2721DE: https://eprel.ec.europa.eu/qr/344911

 ×  ()/ ×  () 

 ×  ()/ ×  ()

:Windows 8.1Windows 8Windows 7󰀬
 8.1  8  
.
.Screen resolution
Screen Resolution 
. ×  ()/ ×  ()
.OK 
:Windows 10
 

.Advanced display settings 
×  ()/ ×  () 

 Apply
 



Dell
t 

()/ ×  () 
 × 
 ×  ()/ ×  ()
Dell