Help finding the right nas

[Enquiries]

Currently growing my movie collection and my graphic design and photography collection of data. I also want a simple solution for my wife to back up photos from her Iphone. I would also like to start treating a nas like my office network storage where I work off it and save my files to it vs saving them to my desktop. Things I want to learn more about and think about is ssd cashing or using an ssd to improve performance for working off it. Also finally I do have 2.5gb network switch and connectivity for my desktop to hopefully benefit from that ssd performance. Any recommendations would be every helpful essential before Black Friday sales to hopefully get something for just under 500$.
Ps I think I want a 4 bay nas
-Elliot

[ed]

Yes, people are waiting for ds920+ sales. This is an excellent NAS for multimedia and backups. The price dipped below $450 on the previous sale. Keep your eyes on this page https://nascompares.com/daily-deals/

I hope this helps.