Hardware Specifications
CPU
CPU Model INTEL Core i3-4130
CPU Frequency Dual Core 3.4GHz
Floating Point Yes
Hardware Encryption Engine Yes
Memory
System Memory 4GB DDR3 ECC
Memory Module Pre-installed 2GB x2
Total Memory Slots 4
Memory Expandable up to 32GB (8GB x4)
Storage
Drive Bay(s) 12
Maximum Drive Bays with Expansion Unit 36
Compatible Drive Type
  • 3.5" SATA III/SATA II HDD
  • 2.5" SATA III/SATA II HDD
  • 2.5" SATA III/SATA II SSD
Maximum Internal Raw Capacity 72TB (6 TB HDD x12) (Capacity may vary by RAID types) (See All Supported HDD)
Hot Swappable Drive Yes
External Ports
USB 3.0 Port 2
Expansion Port 2
File System
Internal Drives EXT4
External Drives
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
Appearance
Size (Height X Width X Depth) 270mmx300mmx340mm
Weight 9.8kg
Others
RJ45 1GbE LAN Port x
Wake on LAN/WAN Yes
PCIe x8 Slot for Network Card (See more) 1 (at x8 mode)
System Fan 120mmx120mmx2pcs
Fan Speed Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan Yes
Wireless Support (dongle) Yes
Noise Level* 27.4 dB(A)
Power Recovery Yes
Scheduled Power On/Off Yes
Power Supply Unit / Adapter 500W
AC Input Power Voltage 100V~240V AC
Power Frequency 50/60HZ, Single Phase
Power Consumption* 88.48W (Access)
43.54W (HDD Hibernation)
British Thermal Unit 301.90 BTU/hr (Access)
148.56 BTU/hr (HDD Hibernation)
Environment Temperature
Operating Temperature 5°C~35°C (40°F~95°F)
Storage Temperature -20°C~60°C (-5°F~140°F)
Relative Humidity 5%~95% RH
Certification
  • FCC Class B
  • CE Class B
  • BSMI Class B
Warranty 5 Years
Notes
  • Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 500GB ST9500325AS 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: 17.2 dB(A); Temperature: 23.6°C; Humidity: 58.2%.
  • When upgrading RAM to more than 24GB, the original 4GB RAM modules must be removed.

DSM Specifications ( See more )
Storage Management
Maximum Single Volume Size
  • 200TB (32GB RAM required, for RAID 5 or RAID 6 groups only)
  • 108TB
Maximum Internal Volume Number 1024
Maximum iSCSI Target Number 64
Maximum iSCSI LUN 512
iSCSI LUN Clone/Snapshot, Windows ODX Yes
RAID Group Yes
Supported RAID Type
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID Migration
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
  • RAID 1
  • RAID 5
  • RAID 6
Volume Expansion by Adding a HDD
  • RAID 5
  • RAID 6
  • JBOD
Global Hot Spare Supported RAID Type
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
SSD Support

SSD Read/Write Cache (White Paper)

 Yes

SSD Cache Skip Sequential I/O

 Ye

SSD TRIM

 Yes
File Sharing Capacity
Maximum User Accounts 16000
Maximum Groups 512
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 16
Maximum Concurrent CIFS/AFP/FTP Connections 1024
Windows Access Control List (ACL) Integration Yes
NFS Kerberos Authentication Yes
High Availability Manager Yes
Log Center Yes
Syslog Events per Second 3000
Virtualization
VMware vSphere 5 with VAAI Yes
Windows Server 2012 Yes
Windows Server 2012 R2 Yes
Citrix Ready Yes
Notes Performance figures could vary on different environments.

Add-on Packages (See more)
Antivirus Essential Yes
Audio Station Yes 
Cloud Station Yes 
Maximum Concurrent File Transfers 1024
Cloud Sync Yes 
Directory Server Yes 
DNS Server Yes 
Download Station Yes 
Maximum Concurrent Download Tasks 80
Glacier Backup Yes 
HiDrive Backup Yes 
iTunes Server Yes 
Java Manager Yes 
Mail Server Yes 
Mail Station Yes 
Media Server Yes 
DLNA Compliance Yes 
Note Station Yes 
Photo Station Yes 
RADIUS Server Yes 
Surveillance Station Yes 
Maximum IP cam (Licenses required) 75 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)* 2250 FPS @ 720p (1280x800)
650 FPS @ 1080p (1920×1080)
450 FPS @ 3M (2048x1536)
200 FPS @ 5M (2591x1944)
Total FPS (MJPEG)* 600 FPS @ 720p (1280x800)
240 FPS @ 1080p (1920×1080)
150 FPS @ 3M (2048x1536)
150 FPS @ 5M (2591x1944)
Time Backup Yes
Maximum Task Number 16
Video Station Yes 
Video Transcoding Group 1 (See more)
VPN Server Yes 
Maximum Connections 30
Notes Surveillance Station throughput is tested with Axis P1347 (H.264@1280x720@30FPS), using continuous recording with live view from Surveillance Station and motion detection by the camera. Live view and recording are sharing the same stream from the camera. Recording video is saved every 5min with the limit of archive folder up to 1GB.

Environment & Packaging
Environment RoHS Compliant
Packaging Content
  • Main Unit x1
  • Welcome Note x1
  • Accessory Pack x1
  • AC Power Cord x1
  • RJ45 LAN Cable x1
Optional Accessories
  • Remote
  • Camera License Pack
  • 4GB (2GB x2) ECC RAM Module Kit
  • 8GB (4GB x2) ECC RAM Module Kit
  • 16GB (8GB x2) ECC RAM Module Kit
  • Expansion Unit: DX1215 x2
  • VS240HD
  • Synology Ethernet Adapter E10G15-F1