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Synology DS3615xs DiskStation 12-Bay NAS

Model: SY20071 / Item No: 411385

Synology DS3615xs DiskStation 12-Bay NAS

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Premium performance

DS3615xs delivers up to 2351.23 MB/s throughput in reading and 236,353.92 read IOPS1. DS3615xs is equipped with 4GB RAM and up to 32GB ECC RAM expansion support, so enterprises can guarantee data accuracy as well as superior performance. 

Hardware encryption engine enhances file transfer speeds

Encrypting data is essential to a healthy security policy. Equipped with a dedicated hardware encryption engine, DS3615xs is the ideal digital locker for sensitive data; files and folders are encrypted on the fly and transferred without significant performance loss. DS3615xs delivers encrypted data transmission speeds at 2,282.38MB/s.

Robust scalability up to 36 drives

With 12 HDD trays and support for adding up to two Synology DX12152 expansion units, DS3615xs provides the ability to seamlessly expand up to 216TB3 of raw storage capacity and expand a single volume up to 108TB on the fly. When the storage capacity of DS3615xs nears it limit, expansion is easily accomplished as it supports up to 36 HDDs or SSDs. DS3615xs provides enterprises flexible capacity and balanced performance to meet the needs of varying applications and processes. 

10GbE and SATA III 6Gb/s support

In addition to the default 4 Gigabit ports, DS3615xs comes with one PCI Express Gen3 x8 slot, allowing installation of 10GbE Network Interface Cards (NIC) for maximized bandwidth. Coming with native SATA III 6Gb/s support, DS3615xs ensures the optimum data process under heavy system loading.

SSD cache technology

DS3615xs enables the combination of hard drives and read/write-optimized SSD cache, boosting throughput efficiently while minimizing cost per gigabyte. With full SSD cache reading and writing support, DS3615xs offers a significant reduction in I/O latency without crippling your budget. With only a small upfront investment, businesses can benefit from significant server performance enhancement.


 5 year warranty

Synology DS3615xs is backed with Synology's 5-year limited warranty. With technical support and hardware replacement service, the five-year warranty maximizes your enterprises' return on investment. For the entire duration, you will enjoy technical support via e-mail and telephone.


Award winning OS - DiskStation Manager

Synology DiskStation Manager (DSM) is a sleek, browser-based operating system running on every DiskStation and RackStation, which makes managing your Synology NAS a breeze. Featuring an intuitive user interface, DSM makes accessing and sharing your data smarter and simpler. Synology's Package Center lets you download and install useful add-on packages designed specifically for individual or business needs, meaning you can enjoy more entertainment in your life or better productivity at work. Learn mor


Hardware Specifications
CPU Model INTEL Core i3-4130
CPU Frequency Dual Core 3.4 GHz
Floating Point  
Hardware Encryption Acceleration (AES-NI)  
System Memory 4 GB DDR3 ECC
Memory Module Pre-installed 2 GB X 2
Total Memory Slots 4
Memory Expandable up to 32 GB (8 GB X 4)
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 72 TB (6 TB HDD X 12) (Capacity may vary by RAID types) (See All Supported HDD)
Hot Swappable Drive  
External Ports
USB 3.0 Port 2
Expansion Port 2
File System
Internal Drives EXT4
External Drives
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
Size (Height X Width X Depth) 270 mm X 300 mm X 340 mm 
Weight 9.8 kg 
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
Wake on LAN/WAN  
PCIe x8 Slot for Network Card (See more) 1 (at x8 mode)
System Fan 120 mm X 120 mm X 2 pcs
Easy Replacement System Fan  
Wireless Support (dongle)  
Noise Level* 27.4 dB(A) 
Power Recovery  
Scheduled Power On/Off  
Power Supply Unit / Adapter 500W 
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 HZ, Single Phase
Power Consumption* 88.48W (Access) 
43.54W (HDD Hibernation) 
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
  • FCC Class B
  • CE Class B
  • BSMI Class B
Warranty 5 Years
  • 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
  • 200 TB (installation of 32GB RAM is required)
  • 108 TB
Maximum Internal Volume Number 1024
Maximum iSCSI Target Number 64
Maximum iSCSI LUN 512
iSCSI LUN Clone/Snapshot, Windows ODX  
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)  
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  
NFS Kerberos Authentication  
High Availability Manager  
Log Center  
Syslog Events per Second 3000
VMware vSphere 5 with VAAI  
Windows Server 2012  
Windows Server 2012 R2  
Citrix Ready  
Notes Performance figures could vary on different environments.
Add-on Packages (See more)
Antivirus Essential  
Antivirus by McAfee (Trial)  
Audio Station  
Central Management System  
Cloud Station  
Maximum Concurrent File Transfers 1024
Cloud Sync  
Directory Server  
DNS Server  
Download Station  
Maximum Concurrent Download Tasks 80
Glacier Backup  
HiDrive Backup  
iTunes Server  
Java Manager  
Mail Server  
Mail Station  
Media Server  
Photo Station  
RADIUS Server  
Surveillance Station  
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  
Maximum Task Number 16
Video Station  
Video Transcoding Group 1 (See more)
VPN Server  
Maximum Connections 30
Notes Surveillance Station throughput is tested with Axis P1347 (1280X720); FPS set to 30 at every channel.
Environment & Packaging
Environment RoHS Compliant
Packaging Content
  • Main Unit X 1
  • Welcome Note X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
Optional Accessories
  • Remote
  • Camera License Pack
  • 4GB (2GB X 2) ECC RAM Module Kit
  • 8GB (4GB X 2) ECC RAM Module Kit
  • 16GB (8GB X 2) ECC RAM Module Kit
  • Expansion Unit: DX1215 X 2
  • VS240HD


Shipping Calculator

Skycomp Technology uses the best carriers in the business to make sure your order gets to you on time.
Australia Post eParcel 
eParcel generally takes 2-10 business days to be delivered depending on final destination.
We recommend you use this service for PO Box or if you believe your delivery address will be unattended as you will be able to collect this from your local Post Office. 

Australia eParcel Express
eParcel Express generally takes 1-3 business days to be delivered depending on final destination.
We recommend you use this service for PO Box or if you believe your delivery address will be unattended as you will be able to collect this from your local Post Office.

Other prefered partner
• Local Express:Delivered in 1-2 Business Days 
• Nationwide Delivery: 1-4 Business Days* 
• Nationwide Express: Next Business Day* 
*Allow extra days for regional areas 
All orders will be shipped from our Australian (NSW/QLD/VIC/WA) warehouses. More than 95% order are shipped via Australia Post E-Parcel and some from our preferred Partner listed below:

Following are the contact details of the freight companies we use:


Ph: 02-92800583 
Usually 24 hours after placing your order.

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