Hardware Specifications
 | 
Applied Models
 | 
Supports creating volumes across different units | 
- FS series:FS6400, FS3600, FS3400
 
 
 | 
|   | 
Notes | 
- Expansion Unit FX2421 can only be used with identical expansion units.
 
- DSM version requirement: 6.2.3-25426-2 or later version.
 
- To have better performance, we recommend creating storage volumes physically located within the same NAS or Expansion Unit, rather than creating volumes across your NAS and Expansion Unit.
 
 
 | 
Storage
 | 
Drive Bays | 
24 | 
|   | 
Compatible Drive Type* (See all supported drives) | 
- 2.5" SAS HDD
 
- 2.5" SAS SSD
 
- 2.5" SATA SSD
 
 
 | 
|   | 
Maximum Internal Raw Capacity | 
92.16 TB (3.84 TB drive x 24) (Capacity may vary by RAID types) | 
|   | 
Hot Swappable Drive | 
V | 
|   | 
RAID Management through Synology DSM | 
V | 
|   | 
Notes | 
- Storage Pool and volume creation require all drives to be listed as compatible on the device model's compatibility
list.
 
- "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
 
 
 | 
External Ports
 | 
SAS IN-port | 
1 | 
|   | 
SAS OUT-port | 
1 | 
Appearance
 | 
Size (Height x Width x Depth) | 
88 mm x 430.5 mm x 692 mm | 
|   | 
Size (Height x Width x Depth) (with server ears) | 
88 mm x 482 mm x 724 mm | 
|   | 
Weight | 
14.5 kg | 
|   | 
Rack Installation Support* | 
4-post 19" rack (Synology Rail Kit - RKS1317) | 
|   | 
Notes | 
The rail kit is sold separately | 
Power
 | 
Power Supply Unit / Adapter | 
500 W | 
|   | 
AC Input Power Voltage | 
100 V to 240 V AC | 
|   | 
Power Frequency | 
50/60 Hz, Single Phase | 
|   | 
Power Consumption* | 
190.99 W (Access) | 
|   | 
British Thermal Unit | 
651.68 BTU/hr (Access) | 
|   | 
Redundant Power Supply (for RP model) | 
V | 
|   | 
Notes | 
Power consumption is measured when it is fully loaded with HGST 1.8TB HUC101818CS4204 hard drive(s). | 
Temperature
 | 
Operating Temperature | 
0°C to 35°C (32°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 | 
V | 
|   | 
Noise Level* | 
57 dB(A) | 
|   | 
Notes | 
Noise Level Testing Environment: Fully loaded with Toshiba 600GB AL14SEB060N hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the
Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% | 
Certification
 | 
UL | 
Warranty
 | 
5 Years | 
|   | 
Notes | 
The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | 
Environment & Packaging
 | 
Environment
 | 
RoHS Compliant | 
Packaging Content
 | 
- Main Unit X 1
 
- Accessory Pack X 1
 
- AC Power Cord X 2
 
- Expansion Cable: MiniSAS-HD X 1
 
- Quick Installation Guide X 1
 
 
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Optional Accessories
 | 
 |