Exchange for DS1515+

[Enquiries]

Hello,
I have to exchange my defective Synology DS1515+ and have the choices DS1520+ or DS1522+.
What ist better?
Migration of the 5 Discs (in correct order) possible with both?
Use of DX517 possible with both?
Can you please help me?

[ed]

It depends on what you use it for. If you access multimedia remotely ds1520+ is better.
Otherwise, ds1522+ is a newer model.
Both support dual ds517 expansion.
Both support drive migration.

I hope this helps.