I know there are as many uses for them as you can think of so I'll just say how we've used them for all that apply. Our church has a computer that issues several video cards. One feeds the monitor, the other feeds the displays, and we've always wanted to feed the second monitor and rear "foldable" screen from a different channel. This allows us to view the preacher's messages, the time, a preview of what was next on his slide deck, etc. This device works great by splitting the signal from the VGA connector into two outputs. We had no issues with resolution or quality. Our initial goal was to split the signal (monitor #2 / foldback) and then get a good picture as it was sent to the ceiling projectors via a long cable. Once we booted the system, our fears proved unfounded. With this device, we now have valuable tools to get information to our minister without interrupting the service.
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