Chapter 4
Connecting computers and other devices
smarttech.com/kb/171415 51
Setting a connected computer’s resolution and refresh rate
This table presents the recommend resolutions and refresh rates for the display’s inputs:
Input source Resolution Refresh rate
HDMI 1 3840×2160 60Hz
HDMI 2 3840×2160 60Hz
HDMI 3 3840×2160 60Hz
VGA 1920×1080 60Hz
USB Type-C 3840×2160 60Hz
If possible, set connected computers to these resolutions and refresh rates. See the computers’ operating
system documentation for instructions.
Using recommended cables
SMART recommends the following varieties of cable:
Cable type Maximum length Recommendation
HDMI 23' (7 m)
1
Use only certified premium high-speed HDMI cables that
have been tested to support the performance standard
you require.
VGA 23' (7 m) Use VGA cables with all pins in their connectors fully
populated and wired.
Stereo 3.5 mm 20' (6 m) [N/A]
USB 2.0 16' (5 m) Use a USB extender if the distance between the
computer and the display is greater than 16' (5 m). For
more information, see USB extenders on page20.
USB2.0 cables support Hi-Speed (480Mbps), whether
connected to a USB 2.0 or USB 3.0 receptacle. For
SuperSpeed (5Gbps), connect a USB 3.0 cable to a USB
3.0 receptacle.
1
The performance of cables longer than 23' (7 m) is highly dependent on the cable’s quality.
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