NAS as a DAS?

[Enquiries]

I am looking to store all my Movies, TV Shows, Music, Photos on a NAS or DAS so I can view them on my Apple TV box or Plex on an Apple TV Box. I bought the 4 bay Ugreen NAS on the kick Starter and still have not loaded it. Can that NAS be used as a DAS for my Mac mini M1? It it silly to do so? I have no desire to watch movies away from my home. Should I sell this and get a DAS? As you can tell I know nothing about NAS or DAS.

Thank you!!!
Jeff