Synology Expansion Unit RX1216sas
The Ultimate SAS & SATA Storage Expansion Solution

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Overview:
Synology RX1216sas delivers an effortless storage capacity expansion solution for Synology RackStation RS18016xs+ by adding 12 drives on-the-fly while directly connected.
- Plug-n-use design for seamless storage space upgrade
- Redundant data paths & power supplies ensure service uptime
- SATA, SAS, or SSD drives for flexible capacity and balanced performance
- Managed with Synology DiskStation Manager (DSM)
- Backed with Synology's 5-year limited warranty & Synology Replacement Service (SRS)*
Storage Capacity Expansion
When storage capacity on the Synology RS18016xs+ reaches its limit, Synology RX1216sas provides an easy way to immediately scale up by additional 12 SATA, or SAS drives for flexibility and balanced performance. Volumes on the Synology RS18016xs+ can be expanded directly without having to reformat existing drives, ensuring that service on Synology RS18016xs+ continues during capacity expansion. Created as an independent volume, Synology RX1216sas provides an easy means of backing up Synology RS18016xs+.
Specifications:
| Hardware Specifications: | |
|---|---|
| Applied Models | RS18016xs+ |
| Storage | |
| Drive Bay(s) | 12 |
| Compatible Drive Type |
|
| Maximum Internal Raw Capacity | 96 TB (8 TB HDD X 12) (Capacity may vary by RAID types) |
| Hot Swappable Drive | |
| RAID Management through Synology DSM | |
| External Ports | |
| MiniSAS IN-port | 2 |
| MiniSAS OUT-port | 2 |
| Appearance | |
| Size | 88 mm X 430 mm X 692 mm |
| Weight | 13.5 kg |
| Power | |
| Power Recovery | Synchronized with the Synology RackStation |
| Power Supply Unit / Adapter | 2 X 500W |
| AC Input Power Voltage | 100V to 240V AC |
| Power Frequency | 50/60 Hz, Single Phase |
| Power Consumption | 67.31 W (Access) 34.05 W (HDD Hibernation) |
| British Thermal Unit | 229.84 BTU/hr (Access) 116.25 BTU/hr (HDD Hibernation) |
| Note | Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s). |
| Redundant Power Supply (for RP model) | |
| Temperature | |
| Operating Temperature | 5°C to 35°C (40°F to 95°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) |
| Relative Humidity | 5% to 95% RH |
| Others | |
| System Fan | 80 mm X 80 mm X 4 pcs |
| Easy Replacement System Fan | |
| Noise Level | 45.1 dB(A) |
| Note | Noise Level Testing Environment: Fully loaded with Seagate 1TB ST31000520AS hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% |
| Certification |
|
| Warranty | 5 Years |
| Environment & Packaging | |
| Environment | RoHS Compliant |
| Packaging Content |
|
| Optional Accessories | Synology RKS1314 - Rail Kit Sliding |
Documentation:
Download the Synology RX1216sas Data Sheet (PDF).







