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Synology Inc. > 
Item#: N82E16822108126

Synology DX513 Diskless System Expansion Unit for Increasing Capacity of the Synology DiskStation

  • Online Volume Expansion
  • Dedicated Local Backup Solution
  • Reliable Plug-n-use Design
  • Hot-swappable HDD Design
  • Auto power on/off with DiskStation Models

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews
Synology

DX513

Expansion Unit for Increasing Capacity of the Synology DiskStation

Synology® DX513 delivers an effortless solution for volume expansion and data backup for selected Synology DiskStation models. The DX513 seamlessly scales up the storage capacity of the DiskStation by additional 5 hard drives on-the-fly when connected directly to an expansion cable.

Highlight

  • Online Volume Expansion
  • Dedicated Local Backup Solution
  • Reliable Plug-n-use Design
  • Hot-swappable HDD Design
  • Auto power on/off with DiskStation Models

Volume Expansion & Backup

When running out of hard drive capacity on the Synology DiskStation, Synology DX513 provides an easy way to immediately scale capacity by additional 5 hard drives. The RAID volume on the Synology DiskStation can be expanded directly without having to reformat the existing hard drives, ensuring the Synology DiskStation continues its service during the capacity expansion.

Synology DX513 can be used as a dedicated local backup solution for the Synology DiskStation. When created as a separate volume, the Synology DX513 provides a great backup solution to its local hard disks in case of system failure.

Reliable Plug-n-use Design

The Synology DX513 is connected to the Synology DiskStation using an expansion cable with custom-designed connectors on both ends, ensuring a reliable connection and maximum throughput. The 3.0 Gb/sec connection speed allows the hard drives in the connected Synology DX513 to operate as the internal ones of Synology DiskStation.

Green & Easy to Manage

Deep Sleep can be manually configured to take effect automatically when the system has been inactive for a period of time. This not only saves energy but also extends the lifespan of the hard disk. The DX513 will also smartly power on/off with the attached DiskStation, so no user intervention is needed to keep this system running smartly and efficiently.

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Learn more about the Synology Inc. DX513

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

Customer Reviews of the Synology Inc. DX513

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  • Jordan M.
  • 3/7/2016 2:04:29 PM

5 out of 5 eggsA simple expansion for an easy to use NAS

Pros: Simple Plug and Play design
works well
not really much more to say about it

Cons: Havent encountered any issues in 2+ years of heavy use

Other Thoughts: I have a DX513 attached to a DS1812+, filled with Seagate barracuda, Desktop, and NAS drives as well as some WD Reds. I have the two set to 2 disk redundancy, and have a total of 32 TB Usable space using 12 disks between the two (8+4). It works. Theres nothing more to say about it.

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

  • Chris H.
  • 2/4/2016 7:02:38 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsBad Experience so far

Pros: Expansion unit for most Synology DS systems. Supports up to 6TB drives.

Cons: Seems to run about 10dB higher than the main DS unit that I have (with 8 bays).

Other Thoughts: I bought this, then filled it with 5 drives and immediately expanded my SHR volume and dumped data on it. Less than 3 weeks later, I started getting SMART test (daily for me) failures on drives. I'm still in the process of moving all my data offsite so I can blast the volume and rebuild the whole thing with new drives, so I can't yet tell if I got a Lemon that will destroy drives or if I got bad drives.

If you can predict about 4 years down the road from how many drives you think you want now, just buy a bigger base unit and then you won't need to bother with the expansion units. Synology is great in that you can dynamically add drives to the raid volumes. Even in a RackStation unit, you don't need to fill all the bays at the get-go.

1 out of 2 people found this review helpful. Did you? Yes No

  • Anonymous
  • 2/11/2015 6:32:46 AM
  • Ownership: more than 1 year

5 out of 5 eggsBack in the saddle again!

Pros: Connect the power cable and the esata cable and your done. That simple? 99% true, but if that 1% means organization of your preferences then it's a home run and done simple concept. Loaded my box with 5xWD Red 2TB and purrs like a kitten using very little power, little to no noise and zero issues.

Cons: $500 is steep for basically a box for drives that doesn't do anything but link to my 1512. Or put it like this. When 5x WD 2TB Red RAID HDD's are cheaper than the box they are in, then Synology needs to look at its price point and think again. $1000 for 10TB expansion? I can build a rack box for 5 drives cheaper.

3 out of 3 people found this review helpful. Did you? Yes No

  • Anonymous
  • 3/11/2014 6:52:48 PM
  • Ownership: 1 month to 1 year

5 out of 5 eggsstupid simple

Pros: Easy 123. Inserted 5 - 3 TB hard drives. Connected sata 3 cable. Insert power cable. Logged into my 1512+ and told it to make expansion my 2nd volume.

Cons: Took about 12-24 hours to format that much data. Shouldn't take that long to build from an empty volume with fresh drives. Price stinks too. Should be $200 for an expansion unit. All it has is 5 plays. Sans digital has same thing for $120-200.

1 out of 2 people found this review helpful. Did you? Yes No

  • Jason P.
  • 12/10/2013 11:29:19 AM
  • Ownership: 1 week to 1 month

5 out of 5 eggsNo-Brainer if You Have A Compatible Synology Device

Pros: Convenience, performance, features, compatibility.

Cons: Not the cheapest NAS in the world, but you get what you pay for. Also, documentation is erroneous (see "Other Thoughts").

Other Thoughts: If you have a compatible device that's full, then this is a no-brainer. Yes, it may be expensive if you consider it to be just another set of slots and a power cord, but that's selling the architecture short.

Synology is tops for SMB NAS--features, performance, and usability. Price, not so much, but if you're looking to save money, you're not looking at Synology devices anyway.

A few things that contradict the PDF directions from my experience (and verified by Synology support):

1) The documentation says that you should insert the eSATA plug with the "eSATA" text facing up. At least in my experience, the cable simply didn't go that way; I had to insert it with the "Synology" logo facing up on both the master device and the DX513. Worked just fine.

2) If you boot up the master device with ZERO disks in the DX513, the 513 will briefly power on, then shut itself down, perhaps to save power, I'm not sure. The DX513 will NOT show up in "External Devices" in DSM on the master device. This is intentional, near as I can tell: just put at least one disk in the DX513 and power it on, and it'll stay powered on and the device and the disk(s) will show up in DSM on the master device just fine.

Also, kudos to Synology support for getting back to me so quickly.

Synology is the best, and you get what you pay for. $500 for five bays of top-performing, fully-featured NAS storage is pretty reasonable no matter how you slice it.

5 out of 6 people found this review helpful. Did you? Yes No

  • Tom M.
  • 12/30/2012 11:22:28 AM
  • Ownership: more than 1 year

5 out of 5 eggsRAID beware: All hard drives are not created equal.

Pros: See other thoughts

Cons: See other thoughts

Other Thoughts: A point to be made to users complaining about constant rebuilds, in particular the person using WD Greens: Not all hard drives are designed to work in a RAID situation. WD Greens are particularly known for poor performance. The problem is they lack a feature WD calls Time-Limited Error Recovery (TLER), other manufacturers have a similar feature under a different name. This feature restricts that amount of time a drive tries to spend recovering from a read error. If the drive spends too long dealing with a read/write error, the raid controller will thing the drive has failed and drop it from the array. More enterprise level drives like the Western Digital Caviar RE's do much better as they have this feature.

I have 5 RE4's in my Synology 1511+ and it's worked like a champ! Never dropped a single disk or had to rebuild.

6 out of 6 people found this review helpful. Did you? Yes No

  • William W.
  • 12/22/2012 12:44:16 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsUpdate my Review

Pros: Easy Setup.

I am updating my review because it turns out that this unit does NOT like WD green drives. Even though the drives I was using were on the Synology approved drives list they caused most of the trouble I was having with this unit and once I figured that out things went much better. I assume it has something to do with the esata connection.

Cons: Poor error reporting, it would have saved me a lot of trouble if I had gotten some indication of what was going on instead of just locking up or telling me the volume was crashed.

Other Thoughts: Once the drives issue was figured out, seems stable although still a bit slow on the volume creation functions.

2 out of 4 people found this review helpful. Did you? Yes No

  • William W.
  • 12/21/2012 6:54:06 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsSave Your Money

Pros: Looks good, matches main unit well

Cons: Piece of junk.
keeps dropping all disks in expansion box (they suddenly disappear from the DSM storage manager screen).
Keeps telling me fan has failed, even though they are both running. Slows down volume creation to a crawl. Crashes the main unit (connection lost reboot)

Other Thoughts: So far I'm not impressed at all with this unit. I Suggest simply buying a larger main unit to begin with. Being able to add storage on later is a nice idea but poor execution in this case

0 out of 12 people found this review helpful. Did you? Yes No

  • errise z.
  • 10/22/2012 3:10:25 PM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWay too easy!!!

Pros: Basically plug and play...plug in the esata cable and go to the management software and set it up. Put in 5 WD RE4 2 TB and in a few hours it all set up. Used this to expand a 1812+ 8 bay nas by synology.

Cons: none so far

4 out of 4 people found this review helpful. Did you? Yes No

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Networking > 
Network Attached Storage (NAS) > 
Desktop NAS > 
Synology Inc. > 
Item#: N82E16822108126
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