Is it possible to have more than one screen?

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Remember, you can plug in HDMI monitors, and they come in various sizes.

Hello all, I was wondering if there was a way to have more than one screen? I have seen on the Rasp Pi people have used USB to HDMI out adapters with success, but they take away from compute resources and such, is there a way to have more than one screen (for extended desktop, not just mirror)? I have seen "video walls" using clustering, but I don't want to simply play a video, just extend a desktop.

If anyone knows of any way, I would appreciate it!
Thanks,

**Edit, is it possible to use both the 7inch screen connected to the board as well as an HDMI monitor at the same time for dual monitors?

Should be possible and there is no need for using additional USB to HDMI adapter.

I am hoping so, though I imagine it depends on the graphics processor. I believe with the Pi, if you use HDMI out, as well as the composite out, you only get a mirror image, not an extended desktop like I am wanting.