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Synology DS3611xs Ultra-High performance NAS Server Scales up to 100TB for Large Scale Business

  • Dual Core 3.1GHz, with floating point Processor
  • Gigabit X4 (optional 10GbE X2 add-on card is supported)
  • USB 2.0 Port X 4, Expansion Port X 2
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Learn more about the Synology Inc. DS3611xs




Port RJ-45
Gigabit X4 (optional 10GbE X2 add-on card is supported)
Port USB
USB 2.0 Port X 4, Expansion Port X 2
HDD Interface
3.5" or 2.5" SATA(II) X12 (Hard drive not included)


Dual Core 3.1GHz, with floating point
Default/ Max. Memory
DDR3 2GB ECC RAM (Expandable, up to 8GB)


Supported Protocols
Networking Protocols: CIFS, AFP, NFS, FTP, WebDAV, iSCSI, Telnet, SSH, SNMP
Storage Management
- Max Volume # : 1024
- Max File System Size : 108TB
- Max iSCSI Target # : 64
- Max iSCSI LUN # : 512
- Supported RAID Type : Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 5+Spare, RAID 6, RAID 10
- RAID Migration : Basic to RAID 1, Basic to RAID 5, Basic to RAID 5+Spare, RAID 1 to RAID 5, RAID 1 to RAID 5+Spare, RAID 5 to RAID 5+Spare, RAID 5 to RAID 6
- Volume Expansion with Larger HDDs : RAID 1, RAID 5, RAID 5+Spare, RAID 6
- Volume Expansion by Adding a HDD : RAID 5, RAID 5+Spare, RAID 6
- Synology Expansion Unit Support : DX1211

- Auto DSM Upgrade
- Administrator Group
- Email Notification
- SMS Notification
- Customized User Quota
- DDNS Support
- IPv6 Support
- Resource Monitor
- UPS Management
- Scheduled Power On/Off
- Custom Management UI HTTP/HTTPS Ports

HDD Management
- HDD Hibernation
- S.M.A.R.T.
- Dynamic Bad Sector Mapping


AC Input Power Voltage: 100V to 240V
Power Frequency: 50Hz to 60Hz, Single Phase


Ultra-high performance of 1000+ MB/sec throughput and 100,000+ IOPS1

Scale up to 100TB with Synology DX12112

Dual 10GbE ports support (with PCI-E add-on card)

VMWare, Citrix, Microsoft Hyper-V compliance

Expandable ECC RAM module (up to 8GB)

Running on Synology DiskStation Manager (DSM) with various business features

Dimensions / Weight

13.39" x 12.20" x 11.81"
23.21 lbs.


Operating Temperature: 5°C to 35°C (40°F to 95°F)
Storage Temperature: -10°C to 70°C (15°F to 155°F)
5% to 95% RH

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the Synology Inc. DS3611xs

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  • Richard T.
  • 3/4/2012 3:27:16 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsDS3611

Pros: This is an addendum to my previous post

Cons: This will accumulate ALOT of dust and there is no filtration on the unit. I have since purchased stainless steel wire cloth 80x80 mesh 12"x12" from McMaster-carr. Cut this to cover air intakes and taped in place. Now no dust problems and there is still plenty of air flow to keep the unit cool!

Other Thoughts: Still glad with purchase

Did you find this review helpful? Yes No

  • Richard T.
  • 2/20/2012 7:07:21 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsDS3611xs

Pros: Wicked Fast!!! Nice form factor. Excellent Software. I can access this with my iphone, ipad, macbook, laptop, western digital tv live, desktop. Audio/video Streaming is smooth without a hiccough. Quiet

Cons: Only enterprise class hard drives are recommended, but I guess if you can afford this then the extra $4000 for HD is not a worry . I don't have the pipes to truly test the speed of this monster. Does not have USB 3.0 ports or esata ports.

Other Thoughts: I have this and the is a great feature to automatically sync the 3611 to the 2411. I backup all my computers to these without a glitch.

1 out of 1 people found this review helpful. Did you? Yes No

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