This is my second Synology product. The first was the DS213 which is also good but I needed 4 bays and I really liked the extended functionality of this unit as a video server. These Synology products are reliable NAS. The operating system is very stable. They are expandable and offer secure RAID storage. Setup is very easy. There are many help documents and videos available online if you need them. All in all a great product if you need a NAS. Perhaps the best I can say is that I didn't know how much they were until I bought this one.
Shock-Resistant Transcend StoreJet 25M3 USB 3.1 Slim Portable Hard Drive with 500GB Capacity
99 Review
2 TB External HDD ADATA DashDrive Durable HD650, USB 3.2 Gen 1, Blue
55 Review
Game console Microsoft Xbox One X 1000 GB HDD, black
53 Review
8TB Seagate Backup Plus Hub Desktop Hard Drive with Data Recovery Services
56 Review