Product Comparison: Synology DS1515+ vs Synology DS1517+

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General Specifications
About the Product
Synology DiskStation DS1515+ features an all-new quad core CPU with an AES-NI hardware encryption engine, providing outstanding performance and data encryption acceleration. Synology DS1515+ is the cost-effective storage solution for centralizing data backups.
Synology DiskStation DS1517+ features a quad-core processor with AES-NI hardware encryption engine, providing outstanding performance even with encryption. Supercharge your storage with the optional M.2 SSD adapter card for dual SSD cache drives.
Key Specs
Hard Drive Capacity
30 TB
50 TB
Number Of Slots
5 -bay
5 -bay
Storage Drive Type
2.5”, 3.5”, SATA 3Gb/s, SSD
2.5”, 3.5”, SATA 3Gb/s, SATA 6Gb/s, SSD, M.2 SSD
What customers say about "Key Specs"
Synology DS1515+ 5-Bay Desktop NAS Enclosure
  • Easy drive install and basic setup.
  • It has huge compatibility list for drives.
  • The DS1515+, while functioning, performed everything it was supposed to and worked well. I was quite happy with it.
  • I needed a bigger faster NAS and this fits the bill perfectly. Very easy to fit drives and set up.
  • The drive trays feel flimsy, are plastic, and have no noise/vibration dampening.
Synology DS1517+ 5-Bay Desktop NAS Enclosure
  • It just works, seriously, pop in some drives, follow the web-based setup, and you're up and running.
  • Excellent NAS, performance, quiet and reliable.
  • The possibility of an SSD cache disk are great. That brings real performance.
  • The DS1517+ was an excellent product, easy to use, and drive bays and (less bright) light styles are far better than the older DS415.
  • Great product, easy to set up, loads of features.
Size & Weight
6.18 in.
6.53 in.
9.76 in.
9.84 in.
9.17 in.
9.29 in.
9.19 lbs.
9.83 lbs.
Intel Atom C2538
Intel Atom C2538
2 GB
8 GB
RAID Support
Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Hardware Encryption Engine, Floating Point Unit, Energy efficiency, Runs on Synology DiskStation Manager (DSM)
Hardware Encryption Engine, Btrfs file system, Easy-to-Scale, Virtualization Ready, Robust Scalability
Included Software
Synology Assistant, Cloud Station, Evidence Integrity Authenticator, File Station, Hyper Backup, iOS/Android applications, Windows Phone applications, Surveillance Station, Download Station
Synology Web Assistant, Cloud Station Drive, Cloud Station Backup, Cloud Sync Decryption Tool, Evidence Integrity Authenticator, Snapshot, File Station, iOS/Android applications, Windows Phone applications, MailPlus, Surveillance Station
What customers say about "Features"
Synology DS1515+ 5-Bay Desktop NAS Enclosure
  • Very good software with frequent updates and good package expansion options.
  • It works and the software works. Highly recommend.
  • The vast amounts of included software and options are amazing. Very pleased again with Synology.
  • The user interface is really clean and the system with stock RAM ran without any reall issues.
  • The 2x80mm fans are noisier than most 90/100/120mm fans.
Synology DS1517+ 5-Bay Desktop NAS Enclosure
  • The construction quality is good, the system is very pleasant to use, the software extension possibilities impressive.
  • Synology Hybrid Raid makes things really flexible, you can mix and match drives and it will give you the most storage possible.
  • Lots of applications that can be used on it, including Docker, which is super powerful.
  • CPU is fine for normal NAS tasks and basic file extractions and such.
  • The operating system of the cabin is fantastic. Low noise, low heat. Speed, reliability.
LAN Speed
1000 Mbps
1000 Mbps
Number of LAN
Number of USB
What customers say about "Interfaces"
Synology DS1515+ 5-Bay Desktop NAS Enclosure
  • The transfer speeds are quite quick. Great ports.
  • Absolutely love this thing. It's blazing fast to transfer your files to, just be sure your network can support the transfer rates.
  • As a standalone unit for file backup, super easy. I also like the way you can use link aggregation to use all 4 ports to a supported switch for better transfer rates.
  • Great amount of ports. Especially USB.
  • It won't backup to an external eSATA drive reliably because it periodically re-names the drive and this means the backup software can't find it again!
Synology DS1517+ 5-Bay Desktop NAS Enclosure
  • Easy to set up and it just works. Great connectivity options.
  • The software is flawless, it had no issues on my network.
  • A good number of USB ports and their location is great.
  • All ports work stably and show good performance.
  • Unfortunately there is no HDMI connector.
Warranty / Certifications
Manufacturer Warranty
3 year(s)
3 year(s)
Other Information

Other reviews