Gigabyte GV-NX76T128D-RH User Manual page 23

(3) Horizontal Span Mode:
Horizontal Span mode indicates that both displays
in the display pair function as one wide virtual
desktop. The width of each display is half the width
of the total virtual desktop width.
Select Horizontal Span from the nView Display
Mode list and click Apply.
Horizontal Span Mode
(4) Vertical Span Mode:
Vertical Span mode indicates that both displays in
the display pair function as one tall virtual desktop.
The height of each display is half the height of the
total virtual desktop height.
Select Vertical Span from the nView Display
Mode list and click Apply.
Vertical Span Mode
- 21 - Software Installation