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WD Sentinel DX4000 Small Office Network Storage Server Item # 144029 OfficeMax # 23325947

WD Sentinel DX4000 Small Office Network Storage Server
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    Secure, centralized network storage for your small office

    • Easy to set up and manage.  Installation is a breeze, whether or not you are an IT professional.
    • Offers complete data protection and remote file access.  For your employees and trusted vendors in the office or from anywhere.
    • Low cost of ownership. 

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    Item # 144029 
    Manufacturer # 10743888  
    RAID Levels 1, 5
    Product Series DX4000
    Total Hard Drive Capacity 12 TB
    Product Line Sentinel
    Product Name WD Sentinel DX4000 Small Office Network Storage Server
    manufacturer Western Digital Corporation
    RAID Supported Yes
    brand name WD
    processor type Atom
    Input Voltage 110 V AC; 220 V AC
    Network (RJ-45) Yes
    Processor Core Dual-core (2 Core)
    Processor Manufacturer Intel
    Product Type Network Storage Server
    form factor Desktop
    warranty length 3-year limited

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    From the Manufacturer|Powered by Answers™

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    • Easy to set up. Easy to manage.

      Simple setup. WD Sentinel comes with everything you need to centralize your business files. Once it’s set up, it intelligently manages drive and network status, reducing maintenance time so you can focus on your business.
    • Enterprise-class data protection for your small business.

      Built on proven technologies from industry leaders, WD Sentinel network storage server offers your business a complete data protection solution for your peace of mind.
    • Backup software licenses included.

      WD Sentinel includes Windows Storage Server 2008 R2 Essentials software to protect up to 25 client computers in your network. There's no need to purchase additional backup software licenses.
    • Plug-and-play installation

      The easy set up process allows you to integrate WD Sentinel into your office network like a pro. The administration Dashboard quickly guides you through the process including adding users, setting up data access, creating shared folders and scheduling backups.
    • Easy maintenance

      Adding or replacing one of the pre-installed drives is as easy as changing a light bulb. Just open the door and swap out the drives and WD Sentinel does the rest. It seamlessly migrates the server to the appropriate RAID level and automatically expands the server’s storage capacity. Your users can still access your business data while the drive is being integrated. No data loss. No down time.
    • Secure remote access

      WD Sentinel is perfect for businesses with employees working in satellite or home offices because you have the security of knowing all your business files are safely stored in one place and remote employees can access them from any computer with an Internet connection. WD Sentinel also performs automatic daily backups so all of the files on all the computers in your network are backed up and protected.
    • Realtime system status through the administration Dashboard

      View realtime updates for drive, RAID and network status through WD Sentinel's Dashboard, which includes easy-to-use task wizards to help you set backup schedules, administer user accounts and manage public and private shares.
    • LCD display panel readily offers critical information

      The LCD display panel on the front of the device allows you to monitor the system status and critical alerts.
    • Virtualize WD Sentinel storage using iSCSI Target.

      WD Sentinel DX4000 supports iSCSI Target. The new Dashboard add-in is designed to easily manage the setup, administration and deployment of iSCSI storage capabilities. When using the iSCSI Target UI within the administration Dashboard and the built-in security of WD Sentinel, IT Pro's and advanced users have the ability to partition their WD Sentinel for both NAS, file-based storage as well as IP-SAN, with the iSCSI Target solution powered by StarWind®. This capability enables the administrator to create multiple iSCSI targets to meet the specific needs of their dynamic IT environments.
    • A total solution with industry-leading technology partners.

      We combined hardware and software from industry leaders to deliver a reliable, secure and easy-to-manage storage server designed specifically for small office environments. WD Sentinel features:

      The drives inside - Pre-configured with hard drives optimized for reliability, quality and performance.

      Intel® Atom™ processor - WD Sentinel DX4000 uses the tested Microsoft Windows Storage Server 2008 R2 Essentials operating system to provide the cost-effective, reliable and scalable storage solution your small business needs to quickly and efficiently organize, protect and share your critical business data using the familiar Windows user experience.

    • Stream digital media anywhere in your network

      With the built-in DLNA media server your employees can access any shared media libraries on the network rather than maintaining copies on their individual computers. You can also stream digital content like videos, music or digital signage for employees, vendors or clients using remote web access.
    • Leading-edge performance

      With dual Gigabit Ethernet connectivity, WD Sentinel DX4000 delivers read speeds up to 105 MB/s through the Gigabit Ethernet interface. That's three times faster than most network drives in this category today. For maximum flexibility there are also 2 SuperSpeed USB 3.0 ports that allow you to connect additional storage devices and experience up to 5Gb/s transfer rates.
    • Compatible with multiple operating systems

      WD Sentinel includes the Connector software for Windows XP, Windows Vista®, Windows 7, Windows 8, Mac OS® X Mountain Lion, Mac OS X Lion, Mac OS X Leopard, Mac OS Snow Leopard and Mac OS Mavericks. Support for major network file-system protocols enables cross-platform compatibility and file sharing among Windows, Mac and Unix/Linux operating systems.

    Case Studies

    • Education Office Gets Smart about Backup

      Napa County Office of Education backs up all email boxes with Western Digital's WD Sentinel small office storage server; reduces storage costs and speeds up PC support with remote Web access.
    • Basketball Team Scores More Time to Win Games

      Western Digital’s small office storage server helps Santa Clara University’s basketball program streamline video management and reclaim valuable coaching time.
    • Law Firm Restores PCs in Two Hours vs. Two Days

      Dibble & Miller uses WD Sentinel small office storage server to back up PCs and cut PC-restore time from two days to two hours. The firm now has enterprise-grade backup at a small-business price.
    • A Good Investment: A Private Business Cloud Solution

      Investment firm gains automatic computer backup, remote data access and plenty of growing room with WD Sentinel DX4000 small office storage server powered by the Intel Atom processor.



    Physical Specifications

    Capacity12 TB

    Physical Dimensions

    Height8.1 Inches
    Depth8.80 Inches
    Width6.30 Inches
    Weight14.00 Pounds
    Height206 mm
    Depth224 mm
    Width160.0 mm
    Weight6.35 kg

    Environmental Specifications

    Temperature (English)
    Operating41° F to 95° F
    Non-operating-40° F to 149° F
    Temperature (Metric)
    Operating5° C to 35° C
    Non-operating-40° C to 65° C

    Electrical Specifications

    Current Requirements
    Power Dissipation AC Input Voltage: 100-240 VAC
    AC Input Frequency: 50-60 Hz

    About RAID

    • About RAID

      RAID is an acronym for Redundant Array of Independent Disks. With RAID enabled on a storage system you can connect two or more drives in the system so that they act like one big fast drive or set them up so that one drive in the system is used to automatically and instantaneously duplicate (or mirror) your data for real-time backup.
    • What do the RAID modes of WD Sentinel mean?

      Data protection (RAID 1) Set the system to data protection mode (also known as mirrored mode or RAID 1) and the capacity is divided in half. Half of the capacity is used to store your data and half is used for a duplicate copy. If one drive goes down your data is protected because it's duplicated.
    • Data protection and speed (RAID 5) WD Sentinel with three or four drives is automatically set to RAID 5. This gives you the best of both worlds: fast performance by striping data across all drives, and data protection by dedicating a quarter of each drive to fault tolerance leaving three quarters of the system capacity available for data storage.

    Data Protection

    • Protecting your data is critical to the long-term success of your business because recreating lost data can take hundreds of hours and cost thousands of dollars. WD Sentinel offers a complete data protection solution and helps safeguard your business against data loss.

    • The drives inside

      Pre-configured with WD’s enterprise-class drives for durability and reliability.

    • Automatic backup and restore

      The software saves time and space by performing a full backup the first time and then automatically backing up only the files that have changed since the previous backup. In the event of a drive failure, WD Sentinel’s easy restore function finds your files, restores them to their previous location and gets you up and running again quickly.

    • Performance and data protection with RAID

      For systems with two drives, WD Sentinel is configured to RAID 1 for extra data protection. For systems with three or four drives, RAID 5 provides the benefit of both extra data protection and high performance.

    • Dual Ethernet ports

      Comes configured in Adaptive Fault Tolerance, which keeps your network available by automatically switching to the second Ethernet port if the first one should fail.

    • Optional dual power supply

      WD Sentinel DX4000 offers the small business owner the option of adding a second power supply that will take over should a power surge or other failure damage the first power supply. With the optional second power supply, you have added peace of mind knowing that your system will remain operational.

    • Optional off-site disaster recovery protection

      Choose the disaster recovery solution that works for your small business – local USB drive or backup to a cloud.

    WD Guardian Services

    • Western Digital offers standard customer support and warranty to all WD Sentinel owners. WD Guardian Services provide additional support and warranty options for small business customers.

      Choose from the following technical support plans and extended warranty services that work best for your business.

      Standard Support (Included)
      • Free 30-day technical support, from the time of your first call.
        Available within the standard 3-year limited warranty period.
      • Standard RMA services1
      • Advance replacement options1
      • Rapid hardware replacement for additional cost1

      WD Guardian Express
      • Includes the standard support
      • Hardware support and express parts replacement for the duration of the plan2
      • Choose either a 1-year or a 3-year plan with an option to renew
      • Must be activated within 30 days from the date of purchase

      WD Guardian Pro
      • Business hours technical support for the duration of the plan3
      • Hardware support and express parts replacement2 for the duration
        of the plan
      • Priority access to technical support through a dedicated support line
      • Choose either a 1-year or a 3-year plan with an option to renew
      • Must be activated within 30 days from the date of purchase

      Standard warranty (Included)
      3-year limited warranty covers the enclosure, drives shipped at purchase and the power adapter.

      WD Guardian Extended Care
      Extends the warranty for two additional years, for a total of a five year limited warranty.
      • Must be purchased and activated while your WD Sentinel product is still within its three year standard limited warranty period
      • WD Guardian Extended Care cannot be renewed for the same
        WD Sentinel product


    • Western Digital Sentinel DX4000

    1. 1 For more information about Standard RMA Services, Advance Replacement Options and Rapid Hardware Replacement, as well as turnaround times for your region, please visit
    2. 2 WD pays for shipping to customer site.  Customer pays shipping of the old part back to WD.  Next business day parts replacement is only available in North America, Monday through Friday, when calls are placed before noon Pacific Time. Turnaround time may vary based on time of call and the region.
    3. 3 To obtain support phone numbers and hours in your region, please visit .
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