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Synology DiskStation DS1517+ (8GB) 5-bay NAS Review

Rating: 8.5.

The last member of Synology's DiskStation Plus series of NAS drives we looked at was the 4-bay DS916+. This time we have the more business orientated DiskStation DS1517+, a quad core powered 5-bay NAS which has been designed to handle data intensive tasks such as on-the-fly encryption in the Workgroup & SMD market segments.

Synology's Plus series of NAS incorporates 2-bay to 12-bay desktop tower designs as well as 4-bay and 12-bay rack mounted units.

At the heart of the DS1517+ is an Intel Atom C2538 CPU running at 2.4GHz. The C2538 is a 22nm quad core processor with 2MB of cache and a TDP of 15W.  Memory wise the DS1517+ comes pre-installed with either 2GB or 8GB of DDR3 and it was the latter version that Synology supplied for this review. Should you require more memory, the DS1517+ supports up to 16GB of memory via two SO-DIMM slots. There also four Gigabit Ethernet Ports that support Link Aggregation for faster network connections and failure protection.

Synology has also built in a degree of future proofing into the DS1517+ in the shape of a PCIe slot. This Gen 2 x8 slot (x4 link speed) PCIe slot currently supports Synology's M2D17 dual M.2 SATA adapter card or a 10GbE NIC.


  • Intel Atom 2.4GHz CPU
  • 8GB Memory.
  • AES-NI hardware-accelerated encryption.
  • PCIe slot.
  • 4 Gigabit Ethernet Ports.

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