1. NUMBER YOUR QUESTIONS.
2. Can you replace the drives out of the NAS RAID into a new raid if that go's wrong?
I have to answer no. The wording is why I must write no. English is a harsh mistress so I take your question as presented and will not guess you meant something else. If you meant can you add drives to a NAS RAID (that's into not out!) then most models allow this. I defer to product documentation for steps.
3. Or would a home server be better with a raid card?
I'd sketch it out, price it and then factor in operating costs. Most PC based servers chew up a lot more Watts.
4. The BIGGEST MISTAKE I run into is no backups. If you were to have a 48TB NAS, to really do it right you have 2 more 48TB backup units. One of them off site to recover from flood, fire and theft.
5. Next biggest misconception out there? RAID (10 or other) does not mean you can go without backups. Why? "The delete key."
OK so I want a NAS RAID, RAID 10 sounds good.
Honestly I do not know what I am doing, but I need about 48tb for games and backed up stuff(honestly 48tb).
Can you replace the drives out of the NAS RAID into a new raid if that go's wrong?
Or would a home server be better with a raid card?
It will be plugged up to one of them ASUS gaming routers(the latest router).
I need some advice on this thank you