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WD 4TB Diskless My Cloud EX4100 Expert Series 4-Bay Network Attached Storage - NAS - WDBWZE0000NBK-NESN

4.1 4.1 out of 5 stars 310 ratings

Currently unavailable.
We don't know when or if this item will be back in stock.
Brand Western Digital
Color Black
Product Dimensions 6.69"D x 6.69"W x 9.13"H
Size Diskless
Material Alloy Steel or Aluminum Magnesium Alloy

About this item

  • Centralized storage with anytime, anywhere access
  • Integrated 1.6 GHz Marvell armadaARMADA 388 dual-core processor and 2GB DDR3 Memory
  • Twonky DLNA-certified media server and iTunes support
  • RAID 0, 1, 5, 10 or JBOD and spanning
  • Integrated backup software for PC users and Time Machine support for Mac users

Product information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here. [PDF ]

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WD 4TB Diskless My Cloud EX4100 Expert Series 4-Bay Network Attached Storage - NAS - WDBWZE0000NBK-NESN


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Product guides and documents

What's in the box

  • My Cloud Expert Series EX4100 Device Ethernet cable Power supply and cable Quick Install Guide
  • Product Description

    WD WDBWZE0000NBK-NESN WD My Cloud Business Series EX4100, 0TB, 4-Bay Diskless NAS with Intel® processor - Marvell ARM 388 Dual-core (2 Core) 1.60 GHz - 4 x Total Bays - 2 GB RAM DDR3 SDRAM - RAID Supported 0, 1, 5, 10, JBOD - Gigabit Ethernet - Network (RJ-45) - 2 USB 3.0 Port(s) - My Cloud OS - iSCSI, FTP, WEBDAV, SSH, IPv4, IPv6, SNMP, UPnP - External

    Overview:
    Centralized storage with anytime, anywhere access
    Store and organize your photos, videos, music and files in one safe place. Access and share them anytime, from anywhere.
    High-performance
    Powerful Marvell ARMADA 388 1.6 GHz dual-core processor and 2 GB DDR3 memory gives you ultra-fast transfer speeds of 115 MB/s upload and 107 MB/s download for high-performance media streaming and file transfers.
    Media streaming
    With the built-in Twonky DLNA-certified media server, you can seamlessly stream all your HD content to media players, Smart TVs, gaming consoles and other DLNA-certified devices.
    Comprehensive data protection
    Backup that's right for you
    Keep your irreplaceable photos, videos and files safe with multiple, automatic backup options for all the computers on your network. For PC users, WD SmartWare Pro offers options for how, when and where your content gets backed up. For Mac users, utilize all the features of Apple Time Machine to protect your content. You can also automatically "back up your backup" to another offsite My Cloud Expert Series device or to a supported cloud service, including Dropbox, ElephantDrive and Amazon S3.
    Multiple RAID options
    Armed with multiple RAID options, you have the power to customize the system with the configuration that works best for you. Choose RAID 0 for enhanced system performance; RAID 1 for mirrored data protection; RAID 5 for data protection and best capacity; or RAID 10 for fast performance and ultimate data reliability

    Top Brand: Western Digital

    Highly Rated
    100K+ customers rate items from this brand highly
    Trending
    100K+ orders for this brand in past 3 months
    Low Returns
    Customers usually keep items from this brand

    From the manufacturer

    My Cloud Expert Series

    Built-in reliability

    Populated with ultra-reliable WD Red NAS drives purposely built to thrive in 24x7 NAS environments.

    Ready-to-go NAS for your high-performance life

    Save all your valuable photos, videos, music and files on this ready-to-go, high-performance NAS solution for secure access to them anytime, from anywhere. Protect your content with multiple backup options, customize your NAS with a full suite of apps and enjoy peace of mind knowing that we’ve put our best in it, so you can put your best on it.

    • Incredibly fast transfer rates
    • Smooth HD streaming
    • Fully integrated, ultra-reliable WD Red NAS drives
    • Comprehensive data protection and security

    Faster speed, better streaming

    Powerful Marvell ARMADA 388 1.6 GHz dual-core processor and 2 GB DDR3 memory gives you ultra-fast transfer speeds of 114 MB/s upload and 108 MB/s download for high-performance media streaming and file transfers.

    Safeguard your irreplaceable content

    Armed with multiple RAID options, you have the power to customize the system with the configuration that works best for you. Choose RAID 0 for enhanced system performance; RAID 1 for mirrored data protection; RAID 5 for data protection and best capacity; or RAID 10 for fast performance and ultimate data reliability. Multiple backup options keep content from all your PC and Mac computers safe.

    Sync content across all your computers

    Use WD Sync to automatically synchronize media and files across all your computers and your My Cloud device, keeping your favorite content always up to date and accessible from all your devices.

    Simple, collaborative sharing

    Create one efficient location for you, your family and friends to save and share all your important content. Your most important files will be stored and shared, at full resolution, so nobody misses a thing.

    Stream your media files with Plex

    The Plex Media Server keeps all your photos, videos and music beautifully organized and prepared for streaming to your PC, mobile device, game console, or other certified media player. Enrich your media with plot summaries, posters, album covers and enjoy it from home or on the go.

    Looking for specific info?

    Customer reviews

    4.1 out of 5 stars
    310 global ratings

    Customers say

    Customers are satisfied with the office environment of the system cabinet. However, they mention it keeps dropping the network connection and is disappointed with the support and hardware quality. Opinions are mixed on functionality, ease of setup, speed, and ease of use.

    AI-generated from the text of customer reviews

    6 customers mention "Office environment"6 positive0 negative

    Customers like the office environment of the product. They mention it's a great little NAS for the home or SMB with considerable options.

    "This is a great storage device with considerable office environment options...." Read more

    "Perfect for a home nas. Using 4X Seagate 8TB archive drives without any problem." Read more

    "Good product for home office - Some functions are sloppy and disappointing...." Read more

    "Amazing home NAS..." Read more

    60 customers mention "Functionality"39 positive21 negative

    Customers have mixed opinions about the functionality of the system cabinet. Some mention it works great and the software seems to be working well. However, others say it's unreliable and playback would fail after a period of 3 to 20 minutes.

    "...The device works great for streaming native movie files to the Xbox One and my VLC app. I also use it's iOS app to backup photos instead of iCloud...." Read more

    "...For Plex users: This device does decently with direct stream...." Read more

    "...8 times to get one simple pre-paid shipping label for their defective product...." Read more

    "...Quiet after initial formatting and pairing4) Plays nice with Mad OSX Ventura5) Remote access is flawless---Cons..." Read more

    39 customers mention "Ease of setup"24 positive15 negative

    Customers have mixed opinions about the ease of setup of the system cabinet. Some mention it's easy to set up and use, comes with a very easy-to-understand OS, and has room for 4 drives. Others say it's difficult to set up and doesn't play well with Mac OS X. The user documentation takes a little digging through the Western Digital site and some of it is a bit confusing. Additionally, Samba configurations are also quite limited via the WebUI.

    "...It does come with a very easy to understand OS with a web login, and also mobile apps, which leads me to the next reason I liked the EX4100...." Read more

    "...Unfortunately, the documentation spends too much time explaining what I would call "normal" stuff, and only brief mentions of things like..." Read more

    "Setup was easy and the instructions were clear. Had everything going within 1hr or so...." Read more

    "...I decided to upgrade to 4 14tb drives in raid 5+. The installation went well and the drives configured without difficulty...." Read more

    14 customers mention "Speed"7 positive7 negative

    Customers have mixed opinions about the speed of the system cabinet. Some mention it's amazing, while others say it seems a bit slow at transferring data and the network performance is poor.

    "...WD got these right. Never had any problems. Nice and fast. I use two because when these stop working it will likely be many years from now...." Read more

    "...Throw on top of that the horribly slow parity checking, the one time I would expect to see the processor and available RAM consumed, it wasn't...." Read more

    "...our failed Seagate, much happier with the UI, the drive management and the overall performance!" Read more

    "...Anyway after getting the system set up I found the write performance to be very poor. Using AFP I was getting 34MBps using SMB I getting 44MBps...." Read more

    9 customers mention "Ease of use"6 positive3 negative

    Customers have mixed opinions about the ease of use of the system cabinet. Some mention the console is clean and simple to use, while others say it's almost impossible to register, not easy or reliable to use, and has practically no logging or troubleshooting capability.

    "...It does come with a very easy to understand OS with a web login, and also mobile apps, which leads me to the next reason I liked the EX4100...." Read more

    "...The management console is clean and simple to use and getting this up an running could not have been easier...." Read more

    "...I am now faced with not being able to log on (even after password resets and log in attempts using the new password) as just 1-2 attempts to log in..." Read more

    "...Many RAID modes are available. Web-based user interface makes it easy to change settings and setup the device...." Read more

    10 customers mention "Connectivity"0 positive10 negative

    Customers are dissatisfied with the connectivity of the system cabinet. They mention it keeps dropping the network connection, and the units will not stay online for more than a couple of hours. It also goes missing from every point of connection, meaning you cannot connect to the unit or the dashboard. The drive would intermittently stop showing up on their network, and constantly has to be restarted.

    "...from your network and remotely, but after that it goes missing from every point of connection, meaning you cannot connect to the unit or the..." Read more

    "...Drives had issue staying in standby however and would spin up regularly for seemingly no reason, even after disabling most features and..." Read more

    "...Then it stopped connecting to the internet, tried running a direct connect to the PC and still wouldnt show up...." Read more

    "...Finger prints, scratches, and missing Quick Start manual. Unable to log on to web browser...." Read more

    7 customers mention "Support"0 positive7 negative

    Customers are dissatisfied with the support of the system cabinet. They mention it's a great beginner box but has poor support for third-party clouds, AVI containers, and Ethernet connections. Some customers also say that less supported cameras are included.

    "...avi (AVI container) is not supported by the Plex client (as it costs money for the license), nor is DTS passthrough, so the Media Server will try..." Read more

    "...Their drives either use Debian 7 (wheezy) or Busy Box. Poor support and you void your warranty by going to the shell (SSH) just to clear errors...." Read more

    "...known issues with randomly dropping ethernet connections and WD will not support it. I'm using it as an iSCSI target and it is horribly unstable...." Read more

    "No support. Great unit if you need a boat anchor!" Read more

    6 customers mention "Hardware quality"0 positive6 negative

    Customers are dissatisfied with the hardware quality of the system cabinet. They mention it's not strong enough to transcode using Plex, is unstable when on a network, and is not powerful enough to transcode.

    "...on a EX4100 and dish out your media, but the one thing that it cannot do is transcoding...." Read more

    "...With that said, this SAN is not stable when it is onna network...." Read more

    "...The EX4100 is not powerful enough to transcode, so you cannot play such files if using this device as the server...." Read more

    "...too $$$$ to have these issues when appears clear it is a manufacturing quality issue...." Read more

    TOTAL SYSTEM FAILURE in less than two months of mild use.
    1 out of 5 stars
    TOTAL SYSTEM FAILURE in less than two months of mild use.
    Worked fine backing up and storing our larger files, but all of sudden got a "System Under Temperature" error on ONE of the bays. Ok, so the other three bays have their own climate? Then, the red light of death for Drive/Bay 1. Fine. Restarted and put in a replacement drive. Nope still dead, and now look, bay/drive 2 is now dead. Day later, there goes bay/drive 4, so I quickly turned off and popped out drive #3 hoping to save it. Sadly #3 didn't make it either. All four (WD Red) drives have been killed by this monstrosity. And it was one month past the amazon return date, so now I get to pay to return it only to get a replacement (which I don't want or trust now) from WD.RUN AWAY from this horrible product at all costs if you want to keep you data.
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    Top reviews from the United States

    Reviewed in the United States on April 21, 2017
    This is by far the best product I've bought in a while. I put Qty (4) -- 4 Terabyte WD Red Drives in it and setup a RAID system for redundancy. I now have the peace of mind that my data will not be lost, even in the event of a hard drive failure. I am able to access it remotely and host my Plex Server on it as well, eliminating the need for an Always-On computer to act as my Plex Server. The processing power on it could be stronger but for my everyday usage it is plenty. I have had a single drive MyCloud 3 TB and it works great as well. My only fear with that one is there is no redundancy since it's a single drive. However it is still kicking at full force after 4-5 years of constant usage. WD makes an outstanding, dependable product and I will continue to purchase WD products in the future.
    One person found this helpful
    Report
    Reviewed in the United States on October 20, 2016
    I have to say, all in all, this is a good NAS. Granted this is the first one I have owned so I really don't have anything to compare it to.

    I owned a 2tb Seagate external drive for years. My wife and I used it for storing some of our data that we don't use often like our family photos, and sure enough it fell off of our entertainment system onto our carpeted floor and died. Yes....I know....I should have had a backup. Luckily because of my wife's inability to have a organized file structure on our laptop, she found a duplicate folder of all the photos that took us months to scan. After that I set out on a mission to have the best data storage solution on a non-commercial scale, which leads me to this product.

    I did extensive research on data storage and came to the conclusion that I wanted a 4-bay NAS enclosure to start off with. Because my wife and I aren't rich by any means, plus having seen with my own eyes WD MyBooks fall from heights astronomically high and be completely fine, I knew that I wanted to go with WD drives, which then led me to this puppy. I did have my eyes on a QNAP NAS but the price was bit out there for what I wanted. The EX4100 had everything that I wanted for a good price point. I bought the diskless version, that way I could spread out the total cost of the drives over a period of time. It does come with a very easy to understand OS with a web login, and also mobile apps, which leads me to the next reason I liked the EX4100.

    As someone said before in one of the reviews, the mobile MyCloud app does look a bit out-dated compared to other apps. It does its job at letting you view your files from anywhere in the world, granted that the speed at which the app searches through your files is based off of how fast your ISP connection (I have a the slowest package that my ISP has...15mb/s down so opening a folder through the app takes a couple seconds), and your device connection is. The one thing about this app that I think actually one ups google is that it can automatically backup your photos and videos from your phone. Now google can do that too but it gets backup to "Google Photos" so you can't actually work with the files unless you download them. The MyCloud app actually lets you SPECIFY A FOLDER to backup to which then allows you to organize things allot easier.

    The other thing that I setup on it was a Plex server. It does advertise that you can install Plex on it. This is true, but if you look at the Plex Media Server compatibility list, yes it can run on a EX4100 and dish out your media, but the one thing that it cannot do is transcoding. I thought I wouldn't run into this issue, but after it refused to even show subtitles on some movies I had, I knew I had do something else. Re-purposing an old desktop with linux solved the issue. All in all, I can't complain about that issue because it was specified on the compatibility sheet, plus I do feel more comfortable taking the workload off of the NAS.

    Now for the big topic....BACKUP. This is not a backup solution...this is merely a high capacity storage solution. My temporary backup plan will be to hookup a external drive (1Tb MyPassport Ultra to be exact) to the NAS and synchronize only the critical data...in my case family photos, videos, resumes, etc. Later on in the future I plan on purchasing a 2bay MyCloud NAS fitted with two 6Tb drives in RAID 0 to have a complete backup of the primary NAS.
    12 people found this helpful
    Report
    Reviewed in the United States on October 26, 2022
    I had one of these before and needed another. I was hoping that the iSCSI configuration utility would have improved but no, being able to use the entire array would be just too much trouble so, my 15.7TB (16TB) array could only be configured as a 15TB iSCSI target.
    Throw on top of that the horribly slow parity checking, the one time I would expect to see the processor and available RAM consumed, it wasn't.
    While I configured the unit yesterday, it is still parity checking and the last message on the screen was firmware update failure. BTW, the web GUI doesn't apparently know that that happened.
    If WD could be bothered to pay a couple hundred to the 50 Indian developers they probably use, many of the items I mention could be fixed. Not knocking outsourced labor (companies I work with use them all the time), I just know that the reason this isn't fixed is because the company isn't in the business of selling web software, it's a sufferance they absorb to sell their hardware. I can see the logic now: ?Does it make an iSCSI target? Yes. Good enough.
    I would never use these in a mission critical environment but, it is adequate for my development systems.
    2 people found this helpful
    Report
    Reviewed in the United States on September 5, 2022
    Setup was easy and the instructions were clear. Had everything going within 1hr or so. I have my entire PC backed up weekly with the software you can download for free. I created a recovery memory stick so I can easily recover my PC if it doesn't boot. The unit is quiet when in standby mode and isn't annoying when not, but the fan and drives make a noticeable sound. The display is clear and easy to read in natural daylight or darkness. The drives fit well and it's easy to fit them into the bays.

    Top reviews from other countries

    Translate all reviews to English
    Enrique A
    5.0 out of 5 stars Es un excelente servidor casero!
    Reviewed in Mexico on April 5, 2016
    Llegó a tiempo, bien empacado (EXCELENTE!) y el producto es un gran servidor casero para música, libros, películas, fotos y se puede configurar para servidor FTP, HHTP, etc. tiene algunas aplicaciones que se pueden instalar automáticamente como Joomla, aMule, etc., hace respaldos automáticos de mis Laptops e inclusive de los celulares de la familia en carpetas separadas (usuarios previamente definidos), trae diversas configuraciones RAID y sobre todo es FACILÍSIMO DE CONFIGURAR, viene en varios idiomas (español por supuesto) RECOMENDADÍSIMO!!! Tanto para hogar como para pequeños negocios.
    Dunbone
    5.0 out of 5 stars Solid, Fast NAS
    Reviewed in Canada on November 17, 2015
    This unit has been working flawlessly since the day I bought it. It's very fast with its Dual Core Processor and 2 GB RAM.
    The mycould technology is a nice touch as well. You can get to your files from anywhere by logging into mycloud.com

    One minor annoyance with me is every couple of days, I'll get an e-mail notification that the Firmware needs updating. I don't need to be reminded of this as I'll do it when I'm ready. Plus, I like to read the WD Community Forums for a few months after an update comes out to ensure the Firmware won't break anything.

    I use the WD Sync software to keep files synced between the NAS and my computer. It's a bit buggy at the moment, but could be a great product if WD decides to update it.
    Dan P
    5.0 out of 5 stars Great NAS at a great price.
    Reviewed in Canada on March 17, 2023
    Very good seller, I ordered 2 on purpose and they reached out to make sure that wasn’t a mistake. Much appreciated.
    Luis
    5.0 out of 5 stars Robusto y confiable
    Reviewed in Mexico on June 29, 2019
    Aunque es el primero en su tipo que adquiero estoy muy satisfecho, lo instale y no he vuelto a necesitar moverle nada, tal vez mi única queja sería la falta de aplicaciones compatibles
    Digital Mike
    5.0 out of 5 stars Excellent
    Reviewed in Canada on October 13, 2019
    Bought this as an Amazon Warehouse deal. Not a bad option, there was some scratching from dust on the shiny plastic face panels and I'm almost certain the power supply is not the OEM one, but I cannot verify that. For the price though, for a 4 bay NAS to use with the Infuse app, this is perfect. You will need to be a little techy to get it set up, but you don't need a diploma to figure it out.