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Synology DS509+ Scalable 5-bay SATA NAS Server for Corporate Users

  • 5-Bay
  • CPU Clock Rate: 1.06GHz Processor
  • 2 x 10/100/1000M
  • 2 x USB2.0
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Synology Disk Station DS509+ offers PC server equivalent performance for efficient data sharing and backup. Its high performance coupled with sophisticated Synology Disk Station Manager 2.2 provides an ideal solution for cross platform sharing, secure server backup, Windows ADS integration, business mail server, and corporate surveillance. The plug-n-use Synology DX5 easily expands the DS509+'s storage capacity up to 10 hard drives on the fly.

  • newegg SATA Hard Drive Support The Synology DS509+ supports up to five SATA hard disks so you can save your movies, music, applications and documents for easy sharing and even back up your system.
  • newegg Gigabit Network Connection The Synology DS509+ features two Gigabit Ethernet ports for up to 10X the speed of most 100M network connections and excellent usability for office and home networks.
  • newegg RAID Support The MicroNet PlatinumNAS Plus PNAS3000P supports multiple RAID modes including RAID 0, 1, 5, 6 and JBOD to ensure data integrity.
  • newegg eSATA and USB 2.0 Support The Synology DS509+ features an eSATA port and two USB 2.0 ports for 3.0Gb/sec definition, plug-n-use connectivity and convenient storage expansion with external storage devices.
  • newegg Enhanced Server Functions The Synology DS509+ offers robust protocol support to serve as an FTP server, CIFS server, APF 3.1 server, NFS server and Telnet/SSH server.

Learn more about the Synology Inc. DS509+




Port RJ-45
2 x 10/100/1000M
Port USB
2 x USB2.0
Port eSATA
1 x eSATA II
HDD Interface
5 x SATA (5 x Bay)


Form Factor
Operating System
Windows 2000 onward
Mac OS X 10.3 onward
CPU Clock Rate: 1.06GHz
Default/ Max. Memory

Hard Drive Performance

RAID 0, 1, 5, 6 and JBOD


Supported Protocols
AFP (3.1)
Disk Station Manager 2.1


AC Input Power Voltage: 100V to 240V
Power Frequency: 50Hz to 60Hz, Single Phase
Power Consumption:69W(Access); 30W(Hibernation)


High Speed
39+ MB/Sec RAID 5 Write
55+ MB/Sec RAID 5 Read
Windows + Mac + Linux
Power Saving (30W~69W)

Dimensions / Weight

9.53" x 7.99" x 6.97"
10.47 lbs.


5°C - 35 °C
5-95% R.H

Package Contents

Package Contents
DS509+ Main Unit
Installation CD
Welcome Note
Assembling Kit
AC Power Cord
2M RJ-45 LAN Cable x 2

Manufacturer Warranty

3 years limited
3 years limited

Quick Info


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

Customer Reviews of the Synology Inc. DS509+

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  • Bill W.
  • 12/28/2009 6:57:58 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsWell Thought Out NAS

Pros: This is overall a very good product. It does what it must plus a little more.

For the bit of iSCSI weirdness that I had, Synology Tech Support was clear, responsive and helpful.

In the end, I paired this device up with some diskless servers to form a ESXi Whitebox solution and with the exceptions noted below, a very good solution.

Cons: * One iSCSI Initiator per Target makes failover and things like VMotion difficult.

* Traditional SAMBA weirdness. Don't expect heavy integration with a windows environment using SAMBA. Thats more of a general comment about SAMBA than Synology.

* Video Surveillance looks like it should work great. Purchased a Panasonic camera off the Synology HCL but still experiencing integration problems.

Other Thoughts: * Don't expect HLDNA to be an acceptable form for navigating significant libraries of content. It's not really a Synology problem, but should be remembered if you are purchasing this device to use that feature.

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

  • Dean M.
  • 12/17/2009 12:20:49 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsExcellent product, outstanding service

Pros: Easy and intuitive to set up. Excellent web-based UI. Dual gigabit Ethernet ports is a strong plus.
I installed 5 WD2002FYPS drives (2TB each) and had the system up and running (RAID 6) as quickly as the drives could be formatted. Several days later, one of the drives failed (yes, that does happen in this era of "commodity" drives!). Synology tech support was quick to assist in the troubleshooting. Replacement of the drive was a snap.
I'm now ordering another DS509+ and will retire the brand B NAS systems.

Cons: None whatsoever.

Other Thoughts: Highly recommended.

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

  • R L.
  • 12/9/2009 6:29:27 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggs

Pros: Yes, it's expandable as it says, yes it has the features it says, yes it's "all that and more"! The only thing the features never say (that I want to bring up) is that it's QUIET. Also, it's not hot (it's not overheating). This is important for me, as my server room is a home office and my server is a mac mini running Mac OS X Server (which, by the way, is also quiet, but does get very very HOT indeed!) This thing rocks!

Cons: None. I couldn't get it to connect to the mac server for domain authentication, but I think that was a mac os x server problem, not a synology problem. I also only needed 5 users, so it was easy enough to just create 5 users.

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

  • Brian M.
  • 8/18/2009 8:07:39 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsOffsite and Local Backup

Pros: Easy to install, Joined my domain quickly. I am using this paired with SAMSUNG F1 RAID Class HE103UJ (4 in each). Raid 5. I have one NAS at my corporate office and another located across the city. I pushed 12gb of data across our two (20/5) FIOS lines in about 6 hours. The device is pretty sturdy and so far so good.

Server name CorpStation
Serial number 93FDN00134
Model name DS509+
Total Physical Memory 1024 MB
Firmware version DSM 2.1-0850
System time Tue Aug 18 11:08:12 2009
Operating time 14 day(s) 21 hour(s) 50 minute(s) 25 second(s)
System temperature 36 °C / 97 °F
Volume 1 13.1/2741.8 GB

Cons: Non Yet

Other Thoughts: I have yet to test it under a fully loaded network environment. I plan on using their software to sync files from our remote workstation out in the field.

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