Recommended Hardware
MoviePoster will run on pretty much any PC made in the past few years. It doesn't need to be particularly powerful, or expensive. Many users will re-purpose an old PC they aren't using or purchase a low cost mini pc.
If you are looking for a small, low power PC, the systems listed below or similar would work well.
HP Stream Mini Desktop on Amazon
Quantum Access Windows® 8.1 Mini PC Stick on Amazon
ECS LIVA X on Newegg
System Requirements
Microsoft Windows Vista, Windows7, or Windows 8.1
.Net Framework 4.5 or higher
Direct 3D capable graphics card and driver
Internet connection
Enough hard drive space for the poster/trailer cache. (At least 10GB of free space is recommended)