DS423+ vs DS423+ with DX517: 4 bays vs 9 bays with an expansion unit
The DS423+ alone has 4 bays, but adding the DX517 via eSATA gives you 9 total. The expansion is optional and adds cost, so it’s only worth it if you need more storage later.
The DS423+ alone has 4 bays, but adding the DX517 via eSATA gives you 9 total. The expansion is optional and adds cost, so it’s only worth it if you need more storage later.