What is the difference between the horizontal mount and the vertical mount?

The “Vertical Mount” display module has mounting tabs on the long sides of the display module, with the tabs aligned vertically when the module is in landscape orientation.

The “Horizontal Mount” display module has these tabs on the short sides, with the tabs aligned horizontally when the module is in landscape orientation. The two options allow customers to fit a module into either a narrow or short space.

In both cases, the default orientation is landscape, with the long sides horizontal, but the modules may also be used in portrait mode with an alternate firmware load.