Most digital signage players will have two video outputs (VGA, or HDMI/DVI) which means you will be able to connect two screens to the players. Here’s a few examples:
This will give you the ability to setup the player to display content in extended mode (stretched across the two screens) or clone mode (same content on both screens). Now what happens if you want to connect a third screen to the player and even a second screen if your player doesn’t support this already? Maybe install a video card? Now most commercial grade digital signage players don’t have any slots for installing the video card, so what now?
I have an EZY solution for you. There’s obviously several solutions available but this is probably the most cost effective solution. All you need is a spare USB port and the correct OS.
It’s called J5create USB3.0 to HDMI/DVI Display Adaptor. You can buy USB to HDMI adaptors from them for about $80. It’s basically a USB display adaptor that allows you to connect multiple screens to the same digital signage player. There’s an adaptor for VGA, DVI and HDMI.