Expansion

Running out of space? Scale up your storage with additional expansion units.
Learn More
  • To have better performance, we recommend creating storage volumes physically located within the same Synology server or Expansion Unit, rather than creating volumes across your server and Expansion Unit.
FX2421

FX2421

24 bays

  • Designed for Synology FlashStation
  • Online volume expansion
  • Redundant power supply
RXD1219sas

RXD1219sas

12 bays

  • For 2.5” and 3.5” SAS drives
  • Online volume expansion
  • Redundant power supply
RX2417sas

RX2417sas

24 bays

  • For 2.5” SAS/SATA drives
  • Online volume expansion
  • Redundant power supply
RX1217sas

RX1217sas

12 bays

  • For 2.5” and 3.5” SAS/SATA drives
  • Online volume expansion
  • Redundant power supply
RX1217

RX1217 / RX1217RP

12 bays

  • For 2.5” and 3.5” SATA drives
  • Online volume expansion
  • Redundant power supply (RP)
RX1216sas

RX1216sas

12 bays

  • For 2.5” and 3.5” SAS/SATA drives
  • Online volume expansion
  • Redundant power supply
RXD1215sas

RXD1215sas

12 bays

  • For 2.5” and 3.5” SAS drives
  • Online volume expansion
  • Redundant power supply
RX418

RX418

4 bays

  • For 2.5” and 3.5” SATA drives
  • Online volume expansion
  • 12-inch depth chassis design
DX1215

DX1215

12 bays

  • For 2.5” and 3.5” SATA drives
  • Hot-swappable drive tray design
  • 21.71W in HDD Hibernation
DX517

DX517

5 bays

  • For 2.5” and 3.5” SATA drives
  • Hot-swappable drive tray design
  • 2.4W in HDD Hibernation

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