Advise on purchasing a Qnap

Hello. First of all thank you for taking the time to read this and excuse my poor english since i am from south america.

I have an old imac and two appletv4. I am also running an airport express.

The question is this: I have tons of movies (all 1080p) in m4v format and some music in lossless (mac contaniner).

Since i am tired of buying external hds, i was thinking of buying the qnap Ts453Be and fill it with 4 teras hds.

I wanted to know (since i read and still dont understand) if my music and movies will play without problems on my apple tvs.

I am not going to use it on my phone or tablet, just for my apple tv.

Will that qnap make the trick?

Tnaks in advance for your response. Those nas are pretty expensive here and i dont want to buy something that i wont use

Cheers

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