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What is USB speed and refresh rate of VG2756-4K under USB-C connection?

The VG2756-4K (via USB-C) by default can display 4K 60Hz, and the OSD setting for "USB 3.2" is Off. 

If the user turns "USB 3.2" On, then a USB-C connection can only display 4K 30Hz.

There's not enough bandwidth for USB 3.2 speeds when connected via USB-C to output 4K 60Hz.
 
This situation will only happen on a USB-C connection. If users connect via DP or HDMI, USB 3.2 speeds will not be affected.

Port

Display

USB-C Charging

USB Connection

USB Setting (OSD)

USB Speed

Ethernet

Remark

USB-C

4K60

90W

USB-C

(Default)
USB 3.2 Off

2.0

480 Mbps

4-lanes for 4K@60Hz

USB-C

4K30

90W

USB-C

USB 3.2 On

3.2

1000 Mbps

2-lanes for 4K@30Hz

2-lanes for 

USB 3.2

DP

4K60

-

USB-B upstream

(Default)
USB 3.2 On

3.2

1000 Mbps

　

   

dernières modifications: jui 2021

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