My thoughts on the QNAP TS-419P are a little mixed. When I started this review, I mentioned that I was looking for a few things in a NAS. One was a NAS that would fit my storage needs. I think that the TS-419P does. I am starting out with four 500 GB drives in a RAID 5 configuration, giving me a total of 1.3 TB of disk space. This is plenty of disk space for my backups and media serving needs at this time. Another plus is that I can expand the NAS at a later date to about 5.5 TB by upgrading the current drives to 2 TB drives. I also like the fact that I can use QNAP’s online RAID Capacity Expansion, when I decide to upgrade, which will save me from having to backup all the data on the NAS and then restoring the data back...