Expansion

Running out of space? Scale up your storage with additional expansion units.

DX517

5 bays
  • For 2.5” and 3.5” SATA drives
  • Hot-swappable drive tray design
  • 2.4W in HDD Hibernation
Why Synology?
Find out from our customers.
View all customer stories

Holiday Inn Riyadh

"Synology helps the hospitality to safeguard their properties and guests."

Premium Automobiles

"Surveillance Station is simply so feature rich and its performances exceed our expectations."

Jetstar Pacific Airlines

"We are very satisfied with Synology products."

Unilever

“Through the use of Synology’s products, we have found an excellent solution which eliminates the problems that prevailed with the previous system."