WD My Cloud Expert Series EX4100 4-Bay Diskless NAS

WD My Cloud Expert Series EX4100 4-Bay Diskless NAS

WD My Cloud Expert Series EX4100 4-Bay Diskless NAS


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Product Highlights

  • 4 x 3.5" SATA Drive Bays
  • 1.6 GHz ARM Dual-Core Processor
  • 2GB DDR3 RAM
  • 3 x USB 3.0 Ports
  • RAID 0, 1, 5, 10, JBOD, and Spanning
  • 2 x Gigabit Ethernet Ports
  • AES 256-bit Volume Encryption
  • DLNA/UPnP Compatible
  • NASware Technology
  • Windows & Mac Compatible
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WD EX4100 overview

  • 1Description

Add USB 3.0 and Ethernet storage to your Windows or Mac system with the My Cloud Expert Series EX4100 4-Bay Diskless NAS from WD. The My Cloud EX4100 is a high performance and high capacity NAS server for SOHO and home users that is well suited for centralizing media and files in one location, accessing and sharing photos, videos, and files from virtually anywhere with computers, smartphones, and tablets, HD media streaming to Smart TV's, gaming consoles, and media players, comprehensive backup solutions, and more.

The My Cloud EX4100 is pre-configured for a user-friendly setup and system management. It also has an intuitive dashboard that helps guide you through the process of setting up users and shares, as well as customizing system features and monitoring storage. It also features a toolless and trayless drive bay design and drive installation, helping to simplify the hot swap process.

This NAS is powered by a 1.6 GHz Marvell ARMADA 388 Dual-Core processor, which will allow you to run multiple functions simultaneously. The built-in 2GB of DDR3 RAM will allow quick access to frequently-used files and programs, and network connectivity is achieved via the 2 x Gigabit Ethernet ports. Having 2 x Gigabit Ethernet ports not only provides network redundancy in the event that one port fails, but it also provides link aggregation to help enhance network performance and provide an enhanced HD media streaming experience. This NAS also has 3 x USB 3.0 ports.

The My Cloud EX4100 features four SATA drive bays that can accommodate 3.5" drives and use NASware technology. If users opt to use WD Red drives with this NAS, NASware technology helps to further optimize WD Red drives for the NAS environment in respect to factors such as vibration compensation, optimized power usage, and data protection in the case of a power loss or disruption. However, please note that this NAS does not include any drives, leaving users the freedom to install compatible drives of their choice.

This WD NAS also features AES 256-bit encryption that helps provide additional protection for your data, and RAID 0, 1, 5, 10, JBOD, and spanning can be used to configure various levels of data performance or redundancy. As this NAS features a built-in processor, this means that should a user wish to take advantage of the RAID functionality, the RAID controller is integrated into the NAS and thus RAID functionality will be controlled by the NAS and its hardware, instead of being controlled by software.

The My Cloud EX4100 operates on 100-240 VAC at 50-60 Hz and includes an Ethernet cable and a power cord. It is compatible with Windows 8.1, 8, 7, and Vista, as well as Mac OS X Yosemite, Mavericks, Mountain Lion, and Lion.

Centralized Storage
Store and organize your photos, videos, music, and files in one safe place. Access and share them virtually anytime, from anywhere
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
Backup Solution
Irreplaceable photos, videos, and files are kept safe with multiple, automatic backup options for all the computers on your customer's network. For PC users, WD SmartWare Pro offers options for how, when and where content gets backed up. For Mac users, they can utilize all the features of Apple Time Machine to protect their content. Customers can also automatically "back up their 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. Other options include JBOD and spanning.

RAID Roaming allows you to keep your RAID array intact when you move drives from one My Cloud EX4100 device to another. RAID Migration lets you change your RAID configuration and expand storage without losing content
Data Security
256-bit AES volume encryption provides additional protection for your valuable photos, videos, music, and files
Recycle Bin
With this optional feature, deleted files are not erased completely from the NAS, but moved to a special folder and can be retrieved, adding a second level of defense against accidental data deletion
WD Red NAS drives with NASware technology
The My Cloud EX4100 comes populated with WD Red NAS hard drives, which are built for NAS systems. WD Red drives help to improve performance and thrive in 24x7 environments.

WD's NASware technology further helps optimize WD Red for the NAS environment. From vibration compensation, optimized power usage, and protecting content in the event of a power loss or disruption, the firmware is designed to deliver improved reliability and system performance
Enhanced Media Streaming and Network Redundancy
Dual Gigabit Ethernet ports for link aggregation helps enhance network performance by giving you an enhanced HD media streaming experience. It also provides for network redundancy should one of your network connections fail
Power Redundancy
Dual power ports offer you the option of adding a second external power supply that will take over should the first power supply fail
One-Touch USB 3.0 Copy Button
Plug in your camera or USB storage device to the built-in USB 3.0 port on the front of the system to automatically copy photos and videos with the touch of a button, making it easy to centralize your media content
Plex Media Server
Plex Media Server is used to host the content and plugins that are then streamed to Plex big screen apps (including Plex Home Theater) and Plex mobile apps, either on the same machine, the same local area network, or over the Internet. In addition to the platforms supported by the front end, the server is available for FreeBSD, Linux and nine different NAS devices. Plex Media Server can be configured to index content in any directory on the machine it is run on, as well as to automatically acquire content from such sources as Aperture, iPhoto, and iTunes. Content may be transcoded by the server before it is streamed, in order to reduce bandwidth requirements or for compatibility with the device being streamed to.

Plex Media Server allows extensibility through the addition of plug-ins. Many such plug-ins are available through the built-in Plex Online digital distribution service. This service can be used directly within Plex Home Theater or Plex Media Center's GUI.

Plex uses the metadata from several free open-source online libraries to automatically find all artwork, media descriptions, and theme music for the entire library.
Powered by My Cloud OS
WD's My Cloud OS delivers a suite of tools and apps that empower you to take control of the media content that matters to you most.
The intuitive dashboard allows you to monitor your storage, manage users, and customize your backup and third-party apps. Plus, set up mobile alerts to keep you informed on the status of your My Cloud EX4100
Secure Remote and Mobile Access
With WD's My Cloud app, you can securely upload, access and share your photos, videos, music, and files from virtually anywhere with your computer, smartphone, or tablet. Share links to your photos, videos, and files via email and seamlessly transfer content between your NAS, Dropbox, OneDrive, Google Drive, and other public cloud accounts
Third-Party Apps
Personalize your NAS experience and download a full suite of popular applications for your My Cloud EX4100. You'll find customizable apps including aMule, phpBB, SqueezeCenter, WordPress, Icecast, Joomla!, phpMyAdmin, Transmission, and more
Energy Saving Features
Includes drive sleep mode, LCD and LED on/off, and power scheduling capabilities to help save power and runtime energy
Advanced Features
• iSCSI target and initiator
• Integrated FTP and WebDAV server
• Integrated SSH Secure Shell
• Link aggregation and network redundancy
• Jumbo frame support
• IPv4 and IPv6
• UPS support (USB and network)
• Real-time resource monitor
• Microsoft Active Directory support
• Energy-saving options
Software Included
WD Software
• WD SmartWare Pro (10-user license)
• WD Quick View
• WD My Cloud mobile app available for iOS and Android
• WD Photos app available for iOS and Android

Third Party Apps
• aMule
• Icecast
• WordPress
• Joomla!
• phpBB
• phpMyAdmin
• SqueezeCenter
• Transmission
UPC: 718037832944
In the Box
WD My Cloud Expert Series EX4100 4-Bay Diskless NAS
  • Ethernet Cable
  • Power Cord
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    WD EX4100 specs

    Number of Bays 4 x 3.5"
    Media Card Slots None
    Connections 3 x USB Type-A (USB 3.1 Gen 1)
    2 x RJ45 (Gigabit Ethernet)
    Total Raw Capacity None
    Type None
    Flash Memory None
    Processor Marvell ARMADA 388 Dual-Core
    Clock Speed Base: 1.6GHz
    Total Installed Memory 2 GB DDR3
    OS Compatibility Windows Vista
    Windows 7
    Windows 8
    Windows 8.1
    macOS 10.8
    macOS 10.9
    macOS 10.10
    macOS 10.7
    Supported Browsers Chrome, Firefox, Internet Explorer, Safari
    Supported Languages Czech
    Simplified Chinese
    Traditional Chinese
    AC Input Power 100 to 240 VAC, 50 / 60 Hz
    DC Input Power  19 VDC at 4.74 A
    Operating Temperature 41 to 95°F / 5 to 35°C
    Operating Humidity 8 to 90%
    Storage Temperature -4 to 149°F / -20 to 65°C
    Storage Humidity 5 to 95%
    Certifications NRCAN, RoHS, as per Manufacturer
    Dimensions 9.1 x 6.7 x 7.6" / 231.9 x 169.9 x 192.0 mm
    Weight 7.5 lb / 3.4 kg
    Packaging Info
    Package Weight 10.6 lb
    Box Dimensions (LxWxH) 14.3 x 10.7 x 9.3"

    WD EX4100 reviews

    My Cloud Expert Series EX4100 4-Bay Diskless NAS is rated 3.8 out of 5 by 5.
    Rated 4 out of 5 by from Generally Quiet, Perhaps A Little Slow If you are looking for a lightning fast device that leaps to attention and serves up a terabyte's worth of FLACS in a flash, this may not be your bag. If you need a device to transcode on the fly so you can access on mobile platforms from afar, probably not the way to go. But for a solid, easy-to-integrate/configure file/media server with RAID 1, decent transfer rates and generally quiet operation at a good price/performance ratio this unit was worth my while and I am happy to have it on my shelf. I'm using with the recommended WD Reds.
    Date published: 2016-02-18
    Rated 4 out of 5 by from Good entry-level NAS with many features Most users are now active on many different platforms and devices, will find that migration to a personal cloud-based storage system makes sense. This WD model gives ample capacity and a good but not great user interface. WD support is responsive and will make sure you are up and running in whatever configuration fits your needs. My only complaint so far is that batch transfers of the files from my large HDDs removed from a former system is disappointingly slow -- below 100mb/sec, nowhere near the rated throughput of the drives and interconnects. Individual files move much faster. The device and its user interface integrate seamlessly with Win 10 networking.
    Date published: 2017-07-02
    Rated 5 out of 5 by from Amazing Product This enclosure works great. I had attempted to use some old parts to make a custom NAS box but it wasn't all that user friendly. This box works great and is simple to setup. It only took me about 30minutes working with the software to setup both my wife's and my phones to backup wirelessly and to get the Plex server running for my Xbox One and PS3. This enclosure is so worth the money.
    Date published: 2015-10-29
    Rated 1 out of 5 by from Simply terrible I wanted to set up a NAS RAID for my important data but this was clearly not the product to do it. I was hoping for software along the lines of CVS where I could check in and check out my files so I could work on them and the server would be able to record my changes but that is clearly not the case. I was very disappointed. Thankfully B&H refunded more or less all of my money with very little hassle. I experienced no loss or risk from purchasing with them!
    Date published: 2018-11-14
    Rated 5 out of 5 by from Great storage This works really good. The whole family can access files from any device.
    Date published: 2015-12-22
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