ASK NC

Primary use will be for Plex with uncompressed 1080p and 4k movies, but also 2-3 cameras and music storage. The NAS will be in a cupboard so noise isn't an issue. 4k HDMI output will be to a receiver and amp. Thanks!

You could consider Qnap 74 series NAS. It can transcode 4k easily.
And it also comes with HDMI port if you prefer connecting it to amp this way https://www.qnap.com/en-us/product/tvs-h...s/hardware
Otherwise, you could connect everything via DLNA.


I hope this helps.