Perhaps a newer Roku with a USB port would work, but I think you should try an App that Samsung puts out. I've never used it, because I bought a 4K TV a couple years ago that plays HEVC from a USB stick, but I think moviefan has done something like it.
The main question would be how old your TV is. The requirements are listed at the bottom of the page here after the other info:
Best feature - the app costs you nothing!
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