BUFFALO TeraStation WS5420 4-Bay Desktop Windows Server IoT 2019 NAS 16TB Hard Drives Included
SKU: 52169591540

BUFFALO TeraStation WS5420 4-Bay Desktop Windows Server IoT 2019 NAS 16TB Hard Drives Included

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Description

BUFFALO TeraStation WS5420 4-Bay Desktop Windows Server IoT 2019 NAS 16TB Hard Drives IncludedDiscover a robust, ready to use storage solution built for businesses that demand secure, scalable, and reliable data management. The BUFFALO TeraStation WS5420 4 Bay Desktop NAS combines enterprise class capabilities with a compact desktop footprint, powering file sharing, backups, and IoT data workflows in a single, easy to manage appliance. With Windows Server IoT 2019 Standard Edition preinstalled, this NAS unlocks a familiar server environment

Discover a robust, ready-to-use storage solution built for businesses that demand secure, scalable, and reliable data management. The BUFFALO TeraStation WS5420 4-Bay Desktop NAS combines enterprise-class capabilities with a compact desktop footprint, powering file sharing, backups, and IoT data workflows in a single, easy-to-manage appliance. With Windows Server IoT 2019 Standard Edition preinstalled, this NAS unlocks a familiar server environment tailored for IoT deployments, centralized data protection, and seamless integration with your existing IT ecosystem. The 16TB of hard drives included means you’re ready to start storing, organizing, and protecting critical data from day one, whether you’re coordinating manufacturing sensors, retail inventory, or clinical data. Wrap this storage powerhouse in a simple, user-friendly interface and you have a dependable backbone for today’s data-driven operations.

  • Immediate, large-capacity storage: The WS5420 comes with 16TB of pre-installed hard drives across four bays, delivering ample space for file shares, backups, and IoT data streams right out of the box. This means reduced setup time and faster time-to-value for your team.
  • Windows Server IoT 2019 Standard Edition preinstalled: Leverage a familiar Windows server environment designed for IoT workloads, with centralized management, security features, and scalable services that support a wide range of business applications and automation scenarios.
  • Flexible RAID and data protection: Choose from common RAID configurations (0/1/5/6/10) to balance performance and redundancy. The hot-swappable drive bays minimize downtime during maintenance or drive replacement, helping maintain business continuity.
  • Cross-platform sharing and robust backups: Serve Windows, macOS, and Linux clients with native network sharing, while built-in backup and disaster-recovery options help safeguard critical data across devices and locations.
  • Easy setup, management, and remote access: A streamlined web-based interface guides you through configuration, user access control, and storage provisioning. Features like remote management and cloud sync options support business continuity and flexible IT administration.

Technical Details of BUFFALO TeraStation WS5420

Key specifications for the BUFFALO TeraStation WS5420 are designed to deliver enterprise-grade storage in a desktop form factor. The system is built around a 4-bay desktop NAS chassis, with 16TB of total storage included in a ready-to-use configuration. It operates with Windows Server IoT 2019 Standard Edition to provide a familiar server environment optimized for IoT data collection, device management, and secure file services. Network connectivity is designed for reliable performance in small-to-medium business environments, with standard NAS capabilities that support common file sharing protocols and centralized administration.

Storage and data management features include the ability to configure multiple RAID levels for data protection and performance, hot-swappable drive bays to minimize downtime during maintenance, and an emphasis on cross-platform compatibility so that Windows, macOS, and Linux clients can access shares without friction. The WS5420 also supports basic remote management, allowing IT staff to monitor and adjust settings from a distance, and it provides opportunities for cloud synchronization and automated backups to protect against data loss.

In addition to core storage, the device is designed with IoT use cases in mind. The Windows Server IoT 2019 environment enables you to deploy IoT services, manage devices, and coordinate data flows from sensors and edge devices. This makes the WS5420 suitable for a range of industries—from manufacturing floor automation and asset monitoring to retail analytics and healthcare data capture—where dependable on-site storage and seamless integration with Windows-based IoT tools matter most.

Performance, reliability, and security are reinforced by a comprehensive set of administrative tools. The unit supports structured user access control, file-level permissions, and audit trails to help you meet compliance requirements and protect sensitive information. The combination of hardware redundancy, a familiar Windows server platform, and IoT-focused features makes the TeraStation WS5420 a compelling solution for teams seeking a centralized, secure, and scalable storage hub.

How to Install BUFFALO TeraStation WS5420

Installing the BUFFALO TeraStation WS5420 is designed to be straightforward, with a guided setup that minimizes the need for specialized IT expertise. Follow these steps to get your NAS up and running:

1) Unbox and place the WS5420 on a stable surface in a secure environment. Ensure adequate ventilation to keep components cool. Connect the device to your local network using a standard Ethernet cable and plug it into a reliable power source.

2) Power on the unit and locate its administrative interface. Most Buffalo NAS devices provide an initial setup page accessible via a default IP address or a discovery utility. Use a computer connected to the same network to access the web-based management console.

3) Complete the initial configuration wizard. Set an administrator password, configure network settings (including any required DHCP reservations or static IP), and select your preferred RAID mode for the 4-bay enclosure. The wizard will guide you through detecting the pre-installed 16TB storage and preparing it for use.

4) Configure Windows Server IoT 2019 Standard Edition integration. The platform is preinstalled, but you’ll typically be prompted to complete licensing steps and connect the NAS to your domain or workgroup. Establish user accounts and determine appropriate access rights for shared folders and services.

5) Create and organize shares. Use the management interface to create shared folders, assign permissions, and configure security settings. Enable SMB for Windows clients, NFS for Linux/macOS clients, and any other protocols your environment requires. Set up quotas and automated backups to ensure data protection and governance.

6) Enable backups and disaster recovery. Leverage the integrated backup options to protect data across your network, and consider scheduling nightly or hourly backups to local shares and, if needed, remote or cloud destinations for added redundancy.

7) Establish remote access and monitoring. If your workflow requires off-site access, configure secure remote access and monitoring dashboards. Regularly review system health, storage utilization, and security alerts to keep the environment stable and secure.

8) Perform a test run. Validate user access from different clients, simulate a restore operation, and verify data integrity after a RAID rebuild or drive replacement to ensure confidence in your storage solution.

9) Document the configuration. Record the network settings, user permissions, shares, and backup schedules. Documentation accelerates onboarding for new staff and simplifies maintenance over time.

With these steps completed, the BUFFALO TeraStation WS5420 becomes a dependable cornerstone for reliable file sharing, IoT data handling, and protected backups, all managed through a familiar Windows-based interface that your IT team will appreciate.

Frequently Asked Questions

  • Is 16TB storage included with the BUFFALO TeraStation WS5420?

    Yes. The WS5420 ships with a total of 16TB of pre-installed hard drive capacity across its four bays, providing ample space for immediate storage, backups, and IoT data collection.

  • What operating system does this NAS use?

    The device runs Windows Server IoT 2019 Standard Edition, offering a familiar server environment with IoT-oriented capabilities tailored for device management, secure access, and scalable services.

  • Can I use this NAS with Windows, macOS, and Linux clients?

    Yes. The WS5420 supports common network protocols including SMB for Windows, as well as NFS for Linux/macOS, enabling cross-platform file sharing and collaboration.

  • What RAID options are available?

    The system supports multiple RAID configurations (0/1/5/6/10), allowing you to optimize for performance, capacity, and redundancy based on your data protection requirements.

  • Is the device expandable or serviceable if a drive fails?

    Yes. The four bays are designed for hot-swappable drives, enabling drive replacement without powering down the unit. Additional expandability can be achieved via USB connections and network-based backups, depending on your configuration.

  • How do I secure and back up my data?

    You can configure user access controls, permissions, and auditing within the Windows Server IoT environment. Built-in backup tools offer local and remote backup options, and cloud sync can be enabled to protect data in offsite locations.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 52169591540

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CamRam
Omaha, US
★★★★★ 5
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Ok, so let me start with the fact that you should NOT waste your time calling Amazon's customer service if you think you have a claim under Asurion's monthly protection plan. CALL ASURION! I wasted almost an hour with Amazon representatives that have absolutely no training in how the Asurion plan works, or even any idea if my item was covered. In fact, they told me the mechanized chair I purchased under the plan wasn't covered! Finally, my call got escalated to a manager who was just as clueless about my coverage, but had the best idea ever... call Asurion! The smartest thing I did that morning was hang up with Amazon, and reach out to Asurion as I should have done in the first place. Dealing with Asurion's customer service, after my Amazon call, was like being elevated to VIP status! 😄 Asurion's rep nicely took all my info, including the chair's purchase date and order number. Then they asked that I upload a couple of pictures of the product, along with a written description of the malfunction I had mentioned over the phone. This is where it gets really good. They told me they'd review the claim to determine if they'd send a repair specialist or reimburse me the cost of the item. In less than 48 hours, they determined that a payout was in order, and sent me an email that included an Amazon gift card for the total cost of the item minus the taxes I had paid, which I loaded directly into my Amazon wallet. Apparently, Asurion does not include the purchase taxes in their coverage. But, I can live with that. All in all, Asurion's claims division get a double thumbs up 👍🏽👍🏽, and the company gets big ups from me for not only standing behind their protection plan, but doing so expeditiously! Special note: If you buy a lot of stuff from Amazon, and have Asurion's monthly protection plan, scroll the item listing before pulling the trigger on your purchase... you need to see the green streamer that indicates your product is protected by the plan. If you don't see that, check to see if there are alternative products that might be covered. There are very few electronic or high ticket items that aren't covered, but looking for that green banner in the item description that says it's covered is key to foregoing any future headaches.
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Reviewed in the United States on April 26, 2026
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Heather Murphy
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Absolutely thrilled with asurions complete protect plan. Worth every penny. My son is on the spectrum, and is very rough with devices, and I myself, am clumsy and go through devices more than the average person. Asurions comply protect plan, holds true and does exactly as promised. It feels so good to know, that next time a device breaks, I don't have to worry and stress over affording a replacement. Claims take literally 5 minutes to file, and I've not yet had an issue with anything not being covered. The only problem I ever had, was initially finding out how to contact them and file a claim. Which is simple. Don't contact Amazon, go to asurions direct website and follow the prompts. I highly recommend asurions complete protect plan, if you like removing stress from your life, and feeling a bit of security.
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Reviewed in the United States on April 18, 2026
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Andrew Giberson
Dallas, US
★★★★★ 1
Worst company I’ve ever dealt with
This is probably the strongest version to use publicly because it stays factual, detailed, and angry without sounding unhinged. That’s what usually hits hardest with companies like Asurion because it reads like a documented timeline instead of just rage. I have never dealt with a more disorganized and concerning claims process in my life than what I experienced with Asurion regarding my DJI Mavic Mini Pro 5 drone claim. This entire nightmare started before the claim was even filed. For over TWO DAYS, multiple Asurion representatives insisted my product “wasn’t registered” and refused to process my claim. Meanwhile, Asurion’s own phone system literally states: “Great news, you no longer have to register your products.” Their own employees did not understand how their own system worked. I was transferred endlessly between departments, hung up on repeatedly, and even sent to Amazon support despite Amazon having nothing to do with the issue. It finally took speaking to a supervisor on the THIRD DAY for someone to admit they were wrong and manually file the claim. I mailed my drone on May 4th regarding a serious GPS/compass issue where the drone would unexpectedly drift or take off on its own while recording. Considering this is a nearly $2,000 flying device, this was obviously a major safety concern. Then things somehow got worse. On May 5th — less than 24 hours after receiving the drone — I got an email saying it had already shipped back to me. No repair details. No explanation. Nothing. When I called asking what repairs were actually performed, supervisor “CES” told me there were “no notes” explaining what had been done. She promised she would investigate personally and call me back within 24 hours. She never called back. On May 8th, after following up myself, another supervisor finally stated that the technician had “soldered/re-soldered” something on the drone. No explanation of WHAT was soldered. No detailed repair notes. No documentation. Nothing. This is a drone that had ZERO physical damage and had NEVER been crashed. I asked for written documentation of the repairs and was refused. I was told to “check the portal,” even though the portal contained absolutely no repair information whatsoever. Another supervisor apologized and promised to email me detailed information immediately. That never happened either. At this point, multiple supervisors had promised callbacks, documentation, and escalation reviews — and not a single one followed through. The drone arrived back while I was still on the phone with Asurion. I powered it on and immediately received compass calibration errors. The drone would not properly calibrate. So after all this, the drone STILL had issues. Instead of taking accountability, supervisor “Ryan” accused me of “chasing a reimbursement check,” which is insane considering Asurion themselves only offer two resolutions: repair or reimbursement. He repeatedly insisted that because I “received a service,” the issue was basically over. He refused to acknowledge my concerns regarding undocumented soldering repairs on a nearly $2,000 aircraft and ultimately hung up on me. Since then, the situation has only become more absurd. Some supervisors told me the situation was unacceptable and assured me I would likely be reimbursed if I mailed the drone back. Others told me they needed more photos, receipts, and serial numbers — despite the fact that all of this had already been submitted previously and somehow “disappeared” from their system. One representative demanded photos of a serial number physically located on the drone itself. I explained that DJI stores the serial information digitally through the controller/settings, something Asurion should absolutely know if they repair DJI drones professionally. That representative then refused to help me further and hung up. 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