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D-Link DNS-321 Diskless System 2-Bay Network Storage Enclosure

  • 2 Bay Enclosure
  • Diskless System
  • 1 x 10/100/1000M
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Access your files from anywhere with D-Link's internet accessible network storage enclosure. The DNS-321 has a built in FTP server so you can log in anywhere you have an internet connection. Since it connects to your network with a Gigabit Ethernet connection you know your local network won't be the cause of slow data transfers.

Internally the enclosure has space for two 3.5" SATA hard drives of any currently available capacity. You can configure the drives for speed or data security. Standard mode allows you to access the drives individually while JBOD adds their capacity together linearly. RAID 0 stripes the drives together for maximum performance. For maximum protection RAID 1 mirrors the drives so you have two copies of the data.

The UPnP AV media server streams data to any connected media devices or computers. That way all the media is stored in one place and you don't have to worry about copying the files to each system. The D-Link Network Storage is a perfect way to store, share and safeguard all your files, do not miss it!

  • newegg Gigabit Network Connection The D-Link DNS-321 features a Gigabit Ethernet port for up to 10X the speed of most 100M network connections and excellent usability for office and home networks.
  • newegg SATA HDD Support The D-Link DNS-321 features two SATA drive bays for easy installation and replacement of internal hard drives without using any tool or attaching any cable.
  • newegg RAID Function The D-Link DNS-321 supports RAID 0 for optimized hard disk throughput, RAID 1 for extra data security, and JBOD for enhanced capacity to store more videos, movies and photos.
  • newegg Built-in FTP Server Function The D-Link DNS-321 features an FTP (File Transfer Protocol) server function for convenient high-speed file transfer.
  • newegg Built-in UPnP AV Media Server With built-in UPnP AV media server, the D-Link DNS-321 streams media files to compatible network media players without the need for a dedicated computer.

Learn more about the D-Link DNS-321

General

Brand
D-Link
Model
DNS-321
Standards
IEEE 802.3, IEEE 802.3u, IEEE 802.3ab

Interfaces

Port RJ-45
1 x 10/100/1000M
HDD Interface
2 x SATA (2 x Bay)

Configuration

Form Factor
2 Bay Enclosure

Hard Drive Performance

Included HDD Capacity
Diskless System

Conveniences

Management
Internet Explorer v6 or other Java-enabled Browsers
Four Different Hard Drive Configurations
Scandisk
E-mail Alerts
Drive Quotas
Power Management
LEDs
Power
LAN
HDD 1
HDD 2

Power

Power
DC14V, 7.89A

Features

Features
Protection and performance
Simplified Management

Dimensions / Weight

Dimensions
7.7" x 5.1" x 4.1"
Weight
3.1 lbs

Manufacturer Warranty

Parts
1 year limited
Labor
1 year limited

Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


Customer Reviews of the D-Link DNS-321

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  • Edward R.
  • 12/18/2012 11:26:19 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsFan Died

Pros: Deviced worked as expected for about a year

Cons: AFter a year, the device stopped working, determined it overheaded because the internal fan stopped. I used compressed air and blew it out and it worked again. Then started cleaning quarterly, just after 2 years, fan stopped agian, and can't keep it going. Device continuously stops working now.

Other Thoughts: It would be nice to know if the fan can be replaced, or if the drives can be dropped into similar NAS and start working. I currently have them in RAID 1 in this device.

Did you find this review helpful? Yes No

  • Anthony P.
  • 1/20/2012 6:53:20 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

4 out of 5 eggsExcellent NAS, if you don't mind waiting some

Pros: Bought two of these NAS' from the other online marketplace about 9 months ago...they are still going strong with no problems. Both NAS' have two 2 TB drives inside that I bought prior to the flood in Thailand. One drive is setup in RAID 1 format, the other as individual disks. One computer uploads data to one of the 321's every minute or so, writing approximately 15 mb every time...this has been going on for about 8-9 months straight now with no problems. I must say, these devices are an excellent value for what you get. Although there is a noticeable slowness with regards to transfer speeds (see cons), my operation doesn't require super-fast data speeds, so this isn't really a bother to me...the devices work, which is the main thing.

Cons: Only one: transfer speeds. I docked one egg for this. For those who require fast access and upload/download speeds...forget about this NAS. However, if you just need access to files and aren't streaming data at a super-fast rate...you'll love the features of this NAS.

Other Thoughts: I know these are out of stock at this time...but if you can find a new or slightly used/like-new DNS-321 AND you don't mind the slow data transfer speeds...GET THIS NAS...you won't be disappointed!

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

  • Douglas C.
  • 3/28/2011 7:46:15 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsD-link

Pros: Welll...Where to start i spend good 4 Hours trying to set up did not work... after swapping several HHD it finally detected my 100G drive but it wont detect 500G nor 1TB HHD which sucks.. i tested the 500 n 1TB drive work find on pc.

Cons: Since this is my First RMA From D-link NAS i'll give it the benefit of a doubt that unit was defective. soo... will try another one...!!!! see how that works out...soooo you get Only 2eggs D--link no more.

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

  • E P.
  • 3/3/2011 10:01:02 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsWorks OK, inexpensive

Pros: Price, ease of use, good basic functionality incl. basic FTP.

Cons: firmware is a little buggy. FW interface is really clunky, but usable.

Other Thoughts: I get about 65 mbs transfer from my WinXP machine to the NAS. I using WD advanced format 2GB drives (WEARS) which are not recommended, but are working fine. I haven't really gotten the internal backup function to work, so I use Acronis for all my backups. FTP function works fine. The interface DLINK uses for its NAS boxes is really archaic, primitive, but it does work.

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  • Glen P.
  • 2/26/2011 1:48:22 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsDoes the trick, avoid MIR

Pros: Very very easy setup and install. Had iTunes and several uPnP devices setup in minutes. Never touched the included software, included web interface is very easy to use like all D-Link web interfaces.

Cons: A little slow on transfer speeds, but that can very easily be Windows. I always have troubles getting Windows to move data across the network at gigabit speeds. Ignore the MIR, just got a rejection letter today, apparently I'm an organization. Who knew? Lost an egg right there.

Other Thoughts: If you don't plan on honoring your rebates, please don't offer them.

Did you find this review helpful? Yes No

  • Anonymous
  • 2/25/2011 3:11:53 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsStay away!

Pros: Looks pretty. Cheap.

Cons: I figured the negative reviews about performance were due to bad networking or general ignorance, but no, they were all absolutely correct. I had the DNS-321 and two standard Windows 7 desktops on a 1GB switch. When I copied a file from one Windows computer to the other I'd get about 90MB/second. When I copied to the Dlink I'd get 12MB/sec. No matter what way I setup the DLink it acted like it was on a 100mbit connection, although all evidence was to the contrary. I bought two so I tried the other one with the same result.

I tried different RAID configs, different hard drives, all to no avail. I can only think that the network component of this box is defective.

Other Thoughts: Avoid! Spend the extra $70 and get a better enclosure.

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

  • Dylan W.
  • 2/25/2011 12:09:47 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week

4 out of 5 eggsPretty sweet little machine!

Pros: - 2 1TB HDDs with RAID1 configuration (Bought seperately)
- Nice online UI
- Very easy to set up
- Uses much less power than my old setup (External 1TB USB connected to Mac Mini)
- Works great between Windows 7, XP, and OS X
- Hacks available for it in case it's standard features aren't enough for you
- Fast enough to support video and song streaming over wifi
- Quiet enough for me
- Able to watch a movie with very few hiccups, I imagine there'd be 0 if I had an 802.11n router.
- Emails you if there's anything that requires your attention.
- UPnP software, iTunes Library, etc.
- User accounts with configurable permissions

I could go on and on about this thing, I'll stop here though.

Cons: - Speeds right around 2.5 MB/s over wifi (Wifi limitation, no fault of DLink)
- Speeds right around 9 MB/s over Ethernet

The somewhat slow speeds are the ONLY thing keeping the DNS-321 from getting 5 eggs in my book. As far as I know, I could squeeze a bit more speed out of them, but it really isn't something that I've felt the need to look too heavily into.

Other Thoughts: I didn't buy it from Newegg, I was going to, but found an offer for a used one that I couldn't pass up. So far I've been extremely satisfied with this unit and would recommend it to anyone looking to get a NAS, while keeping the somewhat slow speed in mind. If you're going to be constantly transferring hundreds of gigs of files constantly, you'll probably require something else, but for the average user who just wishes to keep a backup of his documents, media, and other files, this machine is excellent.

Speeds over Ethernet are only around 9 MB/s, which isn't fantastic considering that I've got Gigabit Ethernet all around, but it's still fast enough for anything I'd need it for after the initial transfer of all my data back onto it. You can mess with Jumbo Packets to increase the speed a bit, but I haven't gotten around to it.

Something else to keep in mind, if you're planning on putting a hard drive that you've already got into it, back everything up first, it WILL format it.

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

  • Kevin H.
  • 2/9/2011 8:52:56 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsSlow transfer speeds, but worth it for features and Raid1

Pros: FTP, bittorrent, and other apps onboard.

Raid 1 (redundant) capable

Cons: Very slow tansfer speeds over ethernet. Not sure why they even wasted time advertising gigabit, nowhere near gigabit speeds (4-9MB/s TOPS, not even great by 100 Mbps standards). Every owner I've read on their forums and elsewhere online complains of this, it's a poorly implemented network controller likely limited by an already overtasked processor.

Other Thoughts: If you don't need blazing access speeds to the data and want to use it for archiving lie I do, or have a very small office environment with small spreadsheet use only, then this will work for you. If you're expecting $300 NAS features, speeds, and quality then you'll need to spend the coin on a $300+ unit.

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

  • Bill C.
  • 2/8/2011 7:44:33 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsNot bad

Pros: solid unit, easy to set up, all needed items included.

Cons: not thrilled with file transfer speed - probably network issue - not sure this item is what I expected/wanted.

Did you find this review helpful? Yes No

  • JOSEPH D.
  • 2/4/2011 10:30:58 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month

2 out of 5 eggsGood for simple file sharing..that's about it

Pros: *Easy to setup and configure.
*Low Cost
*Support for uPnp, ftp, smb, nfs
*Low power consumption
*Hibernation mode
*Small footprint
*Shares files between windows systems just fine.
*Good for backing up PCs on your network.

Cons: *EXTREMELY low file transfer rates. I currently have a gigabit network and am able to transfer files between PCs consistency around 15-25 MB/s.
I was not able to get any more than 6MB/s with any network configurations either on the device (jumbo frames) or on the client hosts. Tech support was no help and the person on the other end kept calling it a router.
*No resource monitoring. There is no way to tell how much CPU/memory usage is allocated when the device is running.
*Only 400MHZ CPU
*Can't stream HD video media. I can easily stream a 720p file from one PC to another on my network. When I try to stream the same clip from the dns-321 the output is very choppy and unplayable. Support was no help on that either.

Other Thoughts: If you are looking for a basic NAS device to share files or backup local PC data on your home or small business network, this may work for you. I was looking for a centralized device in which I could hold my music and video library and stream to various devices in my home. Unfortunately, the low CPU power and slow transfer rates botched this plan. I am sending this unit back and going to try the Synology DS211J which seems to have received many good reviews.

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

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