true answer for me DS923+ vs TS-464

[kfad]

Thanks a lot for your answers.. Aprecciate the knowledge, time & efforts

I don't know how much really I need the Graphics power for my multimedia Use:

• Mainly Videos and Photos, taken by  family iPhones..
  
• AI will be used to organize the large amount of photos..
  
• Will be accessed (hopefully super fast) mainly by family iPhones..
  

> > >  please see my attached chart 923+ vs. 464   >       

> > >  please see my attached chart QNAP models   >       
             [ 6-Bay is appealing for RAID6 - price generally a bit over 4-Bay ]
             [ and some deals (x73A) even makes the 8-Bay appealing . . ]


I cannot think of a harder way just to conclude that i'm going QNAP!

• x64 is fine, 675 is weird, x72 (tx/x/) are irrelevant due to price and the new x74,
  
• the x74 is  t-h-e  best but appearantly with a high price (0 additional cost though),
  
• x73 is well balanced (especially 6/8-Bay)
  

But, with all of that in front of my eyes, I suddenly realize that (regardless the brand) I'm bothered the most about vulnerablity..

So, besides your notes/advice about the above, I'de be glad to hear also whether I can make the NAS:

1. exclussive to my LAN?
   
2. exclussive to specific devices within my LAN?
   
3. exclussive to my LAN except some web-server (VM/docker)?
   

and If any is possible, can I count on that not being exposed to the internet??