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BUFFALO LinkStation Duo 2-Bay 4 TB (2 x 2 TB) RAID Network Attached Storage (NAS) - LS-WX4.0TL/R1

  • 2-Bay
  • Usage High read/write performance with RAID
  • 4TB (2 x 2TB)
  • 1 x 10/100/1000M
  • 1 x USB2.0
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Buffalo’s LinkStation Duo is a high performance, dependable and affordable shared network storage solution with easily accessible drives. It is easy to install and allows you to store and share your music, photos, and videos with multiple computers and over the Internet. With RAID support and Gigabit Ethernet capability, the LinkStation Duo offers fast and reliable performance while ensuring integrity of your data. Plus, the built-in iTunes server allows for your iTunes application to identify and access the LinkStation as an iTunes content source. Access and share your files from anywhere using WebAccess. The user-friendly LinkStation Duo makes file sharing simple.

In addition to its great home server features, the LinkStation Duo network storage solution is also a simple and economical way for small businesses, branch offices and other professional users to add business class features such as RAID 0 and RAID 1, Active Directory Support and WebAccess to their network with an installation that is virtually plug-and-play. Fast, reliable, and secure, the LinkStation Duo is perfect for any home or business.

  • newegg Huge Storage Capacity The Buffalo LinkStation Duo LS-WX4.0TL/R1 features two 2TB SATA hard drives to accommodate your growing network storage needs.
  • newegg Web Access With Web Access, instantly share your photos, music, videos or data files with family, friends and colleagues over the Internet with a standard browser or Apple iPhone.
  • newegg DLNA Certified and iTunes Servers With built-in DLNA (Digital Living Network Alliance) certified media server, you can stream content directly to any DLNA compatible media player or use LinkStation Duo as content source from within your iTunes application.
  • newegg Data Protection Get maximum reliability with automatic data mirroring in RAID 1 or maximum storage with two striped hard drives in RAID 0
  • newegg BitTorrent Client With BitTorrent Client function, you can conveniently download digital content over the Internet directly to your LinkStation Duo.
  • newegg Gigabit Network Connection The Buffalo LinkStation Duo features a Gigabit Ethernet port for up to 10X the speed of most 100M network connections and excellent usability for home and office networks.

Learn more about the Buffalo Technology LS-WX4.0TL/R1

Quick Info


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

Customer Reviews of the Buffalo Technology LS-WX4.0TL/R1

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  • Andras K.
  • 1/26/2014 6:07:18 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year

2 out of 5 eggsUnreliable, poor quality HDDs

Pros: DLNA server works very well
Good performance
Easy and fast to setup
Can stream two HD movies

Cons: Mine came with a WD green HDD which is not recommended for NAS and RAID environments !!! So after 11 months my storage failed and returned it to where it came from.

Other Thoughts: If you are on budget, you better buy the empty unit and add a custom selected HDD ( I recommend Western digital red), Though my new NAS storage will be equiped with Seagate Constallation ES3.

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  • Dustin Z.
  • 11/2/2013 1:26:37 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

4 out of 5 eggsGreat value

Pros: Much faster transfers than my previous LinkStation 1TB model, and smaller. Web interface is also more responsive.

Cons: The fan! Barely a year old and the fan is making a really irritating noise. Cheap fan needs replaced.

Other Thoughts: I needed more space with raid 1 and for just a little more than what the two drives would've cost me individually, I picked up this model for under $250.

Mine came with Seagate barracuda 7200rpm 64mb sata6 drives. Transferring 1GB file to the device averages 45MB/s over gigabit network. Reading a 1GB file transferred at around 85MB/s with bursts up to 120MB.

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  • Daniel D.
  • 6/22/2013 4:04:07 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAcceptable data transfer speed and quiet

Pros: I found the Buffalo easy to set up with Raid1. The Buffalo nas runs very quiet. Its located on the side of my bed. The hard drives that came with it are WD Green 2T. The data transfer rate was very good.

Cons: The web interface is painfully slow to load between choices.

Other Thoughts: I will use this as a data storage/backup device for my pictures and documents. This device for the price will do a great job storing data. I'm looking forward to using the other features the unit provides. I gave the buffalo 5 eggs because it does what I need it to do, it's ultra quiet and price.

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  • Anonymous
  • 1/17/2013 6:33:56 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

1 out of 5 eggsWaste of Money

Pros: The drives do work and I can store data on them.

Cons: It's a Duo Media Server. It's just to slow. It took 6 days to transfer my 1.1TB of movie and video files onto this drive. The max. transfer rate was 10.2 MB and it dropped as low as 4.07MB. I use it to stream via wifi to my WDLiveTV device. It is just to slow and the video slows down to slow motion and the voice drops out. If ANYTHING trys to use the network via wifi the thing stops streaming.
Keep in mind the the 10.3MB transfer rate was on a wired gigbyte network, just think what that may give you when it goes out on wifi.

Other Thoughts: I will use this thing as a data storage/backup device but it will never be a Media Server even if it does have the DLNA media server mode.
I would not recommend this device to anyone.

Manufacturer Response:

Grumpy, please drop me an email so we can trouble shoot your unit. On a Gigabit network you should see 20+MBps. If you initiated you 1.1 TB transfer from a wireless PC then that could explain the slow transfer speed. Even if you did a simple drag and drop on two wired devices, if you did the drag and drop from a wireless PC the data would travel from the 1st unit, to the wireless PC, then to the LinkStation. Also it would be best to update to the new firmware, where we have improved the performance for large file transfers.


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  • Kendric E.
  • 12/15/2012 2:01:23 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggs

Pros: Solid unit, good features. Redundancy with RAID 1. Has lasted just fine.

Cons: It is a little slow, but not unusable. The web interface can be clunky in places, but the features are impressive. I couldn't get it to work with Time Machine, either. I also get a phantom fan failure error, even though it's clearly spinning and not overheating.

Other Thoughts: I enjoyed it, it runs fine and hasn't given me any major problems. I can stream video and music reasonably and it works fine with my backup software (snapshot). There are plenty of neat tools for partitioning and whatnot, so it's nice for that. I'd recommend it as an inexpensive, but reliable NAS unit. I might look at the Pro variant, since it has more advertised speed and whatnot.

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  • Kevin F.
  • 1/9/2011 12:57:22 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsSLOW and LOUD

Pros: Compact, has lots of features built in.

Cons: This unit as advertised by newgg as FAST and SILENT. It is neither. Connected to my gigabit port it is only reaching a maximum speed of ~25MB/s which is somewhat less than a regular USB2.0 external drive will do (about ~30MB/s). Just to say, 25MB/s is only ~200megabit, or about 20% of a gigabit link maximum.

Secondly, this unit is LOUD. The details page says it is fanless and silent. These are both wrong, the unit has a fan blowing out of the back and the hard drives GRIND quite loudly. It is far and away the noisiest piece of equipment in my PC room.

The Web interface is terribly slow, the login page takes 10 seconds to pop up. Navigating the settings pages each takes about 5 seconds to display any information.

Other Thoughts: NOT RECOMMENDED!

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

  • Anonymous
  • 1/4/2011 1:56:45 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week

3 out of 5 eggsSlow Device

Pros: Easy Setup. It almost sets itself up. Wow, Web services included in product. Web Interface not browser dependent. Look like a LAMP server. Can access the drive with UNC or drive letter mount.

Cons: Slow transfers. Don't try to use this with backup software, BackupExec would time out. Great product needs to be able to handle higher transfer speeds though. USB is for attaching other non-host devices such as printer or Ext HDD. You can't use it to connect to a PC.

Other Thoughts: Strange, I had the loose screw too. Device worked great and as designed. I returned it though as it wasn't a good fit for me. Would have liked to played with the features of the product though. Could, I run a LAMP website with this device?

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  • Anonymous
  • 11/11/2010 6:53:02 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsDefective Unit

Pros: none

Cons: First off out of the box there were multiple I12 (message code not in manual but indicates degrade mode) and E23 (error hard drive crash). Noticed rattle noise and opened the bays and a small screw fell out! One hard drive non-operational.

Manufacturer Response:

please contact me so we can see what happened here and get a replacement unit to you. It sounds like this unit was roughly handled during shipping.



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

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