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Description
BUFFALO TeraStation 5420 4-Bay 48TB (4x12TB) Business Desktop NAS Storage Hard Drives IncludedDesigned for small offices, home offices, and growing workgroups, the BUFFALO TeraStation 5420 4 Bay 48TB NAS delivers reliable, centralized data storage with immediate capacity out of the box. This business desktop NAS comes pre loaded with four 12TB drives, providing a total usable capacity of up to 48TB, so teams can store, share, and protect important files without waiting for expansion. Built for continuous operation, the TeraStation 5420
Designed for small offices, home offices, and growing workgroups, the BUFFALO TeraStation 5420 4-Bay 48TB NAS delivers reliable, centralized data storage with immediate capacity out of the box. This business desktop NAS comes pre-loaded with four 12TB drives, providing a total usable capacity of up to 48TB, so teams can store, share, and protect important files without waiting for expansion. Built for continuous operation, the TeraStation 5420 combines robust hardware with an intuitive web-based management interface, making it simple to configure user access, automate backups, and deploy shared folders across Windows, macOS, and Linux environments. Whether you’re hosting active project data, media assets, or critical documents, this NAS is engineered to streamline collaboration while offering dependable performance for day-to-day business tasks.
- High-capacity, ready-to-use storage: 4-bay NAS with four 12TB drives included for a total of 48TB raw capacity, enabling immediate deployment for teams that need substantial centralized storage for documents, media, and project files. The pre-populated drives simplify setup, so you can start sharing files and backing up in minutes.
- Flexible data protection and RAID options: Supports multiple RAID levels to balance capacity, performance, and redundancy, providing options for data protection suited to your workflow. Whether you choose striped configurations for maximum performance or redundant arrays for uptime, the TeraStation 5420 helps protect essential information against drive failures and accidents.
- Easy setup with centralized management: A straightforward, web-based admin interface guides you through initial configuration, user and group permissions, network settings, and shared folders. The system is designed for administrators and IT generalists alike, minimizing downtime and simplifying routine maintenance, backups, and recovery tasks.
- Cross-platform file sharing and access: Built to work seamlessly with Windows, macOS, and Linux clients, providing secure file sharing, remote access, and collaborative workflows. Users can access their files from office workstations, laptops, or mobile devices while IT maintains centralized control over permissions and data security.
- Business-friendly reliability and efficiency: Desktop form factor with a design optimized for quiet operation in office environments, low power consumption for energy efficiency, and continuous operation to support daily backups, versioning, and team collaboration without disruptive noise or heat.
Technical Details of BUFFALO TeraStation 5420 4-Bay 48TB (4x12TB) Business Desktop NAS Storage
- Product type: Network Attached Storage (NAS) designed for business use and shared file access
- Bays: 4 hot-swappable bays for easy drive replacement and expansion
- Total capacity: 48 TB (based on 4 x 12 TB drives included in the package)
- Drives included: 4 x 12 TB hard disk drives pre-installed for immediate deployment
- Networking: Built-in network connectivity suitable for SMB environments; supports standard NAS protocols for cross-platform access
- RAID and data protection: Supports multiple RAID configurations to protect data and optimize performance
- Management: Web-based administration interface for setup, monitoring, user management, and backup configuration
- Power and footprint: Desktop form factor designed for office use with reliable power delivery for 24x7 operation
- Compatibility and expandability: Compatible with common business computing environments and designed to accommodate future storage growth through drive upgrades
How to install BUFFALO TeraStation 5420
- Unbox and place the TeraStation 5420 on a stable, dust-free surface near your network router or switch and a power outlet. Ensure adequate space for ventilation and ease of access to the drive bays.
- Verify that the four 12TB drives are properly seated in the four bays. If you need to replace or upgrade drives in the future, the hot-swappable bays allow you to swap drives without powering down the unit.
- Connect the NAS to your network using a standard Ethernet connection. For best results, connect to a switch or router capable of handling your office traffic and ensure the network is configured to allow discovery.
- Power on the device and locate its IP address via the router’s DHCP client list or the Buffalo discovery utility. Open a web browser and enter the IP address to access the web-based setup wizard.
- Follow the setup wizard to define the administrator credentials, configure RAID, create shared folders, and set up user accounts and access permissions. Establish backup jobs (local, network, or cloud-based if supported) and apply any security policies or access controls your organization requires.
- Test access from a client computer by mapping a network drive (Windows) or mounting the shared folder (macOS/Linux), and run a sample backup to confirm the system is correctly configured. Periodically review health and status reports in the admin interface to ensure continued reliability.
Frequently asked questions
- Q: Are drives included in the package? A: Yes. This model includes four 12TB drives installed in the four bays for a total of 48TB of raw storage, ready to deploy.
- Q: Can I upgrade or replace drives later? A: Absolutely. The TeraStation 5420 features hot-swappable bays and supports drive upgrades and replacements to scale capacity or replace failing disks, with RAID configurations preserving data while you perform maintenance.
- Q: What kind of backups can I perform with this NAS? A: The unit is designed for central backups and file sharing, enabling scheduled backups from Windows, macOS, and Linux clients, as well as server backups and simple cloud integration where supported by the OS and installed services.
- Q: Is this suitable for small business use? A: Yes. Its 4-bay configuration, large built-in capacity, and straightforward management are aimed at small offices and workgroups that require reliable, centralized storage, efficient collaboration, and straightforward data protection.
- Q: What protocols does it support for file access? A: The NAS supports common file-sharing protocols used in mixed-OS environments to ensure compatibility and secure access for all team members.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Great value and a good chair
Color: Black Full Mesh, Style: Executive
Great chair for the price. Not as solid as an Ergo but it's not thousands of dollars either. It's pretty easy to assemble and the directions are good. It rolls well on LVP flooring and they offer 'upgraded' wheels at no cost from what I can tell. I didn't order them since the included ones work perfectly.
I'm 6'4" and both the seat and arm heights can be adjusted to fit me well. The mesh seat is comfortable and the back works fine. The only downside for me is that the lumbar support doesn't adjust quite high enough to actually reach my lumbar area, but I think it would work for most folks.
Overall it's hard to argue with the cost and even if it only lasts a few years it's worth the money.
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Reviewed in the United States on December 21, 2025
★★★★★ 5
Great Chair and Outstanding Customer Service
Color: Black Full Mesh, Style: Executive
I desperately needed a new office chair. I ordered this chair with the mesh seat and it spike up my sciatica. I reached out to the company and Alice took great care to address the issue. She sent me a new seat with a foam cushion and it resolved the issue immediately. The chair is incredibly comfortable with the lumbar support, adjustability and foot support. She also sent me upgraded wheels as my chair is on a thin chair mat on hard wood floors. Alice was extremely responsive with possible options and very thorough with instructions on how to replace the seat. It is a high quality chair that I anticipate will last me quite some time. I highly recommend this company and will definitely order products from them again should the need arise. Thank you, Alice!!
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Reviewed in the United States on June 10, 2026
★★★★★ 5
Well-packaged, quality materials, easy to assemble, very comfortable, great customer service
Color: Black Full Mesh, Style: Executive
When I received this package, I was surprised at how small/compact it was--hard to believe a high-back office chair could fit in that box! As I unpacked it, I was impressed by two things: first, how incredibly well it was packaged with an obvious intent to protect the components; second, how solid, heavy-duty, and high-quality those components were.
I got the box unpacked and read the instructions. They were simple and easy to understand, and included so many "here's a good tip" notes that it was obvious that a lot of thought and experience had gone into writing them. I found the chair simple to assemble and had it done in less than 15 minutes.
The chair was very adjustable. I was able to get the height to exactly what I wanted with no trouble at all. I was also able to adjust the height of the lumbar support, and to adjust how far it extended. There are a lot of adjustments you can make, the instructions lay that out quite thoroughly, too. As a result, the chair was very comfortable and helped me sit with a healthy posture.
I bought this chair because I had begun having an ache in my lower back, which I suspected was due to a chair I had been using for over 5 years. Within 3 days, the back pain was gone.
I was also very impressed with the customer service. Their manual mentions in multiple places things you can try if you have any issues, and always ends with "call us". Their team reached out to me after a few days to make sure I got the chair assembled with no issues and that it was comfortable. This was all part of the all-around quality of this purchase.
I'm very happy with this chair!
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Comparable to Higher-End Chairs, Solid Build and Support Without the Premium Price
Color: Black Full Mesh, Style: Executive, Color: Black Full Mesh, Style: Executive
I’ve been using this chair for a bit now and it’s been a genuinely upgrade. The build quality stands out right away, it has real heft and doesn’t feel cheap or hollow. Everything fits together cleanly and once assembled it feels stable and planted. I’m over 6 ft and 200+ lbs and it handles that without any issue, no creaking or sense that it’s being pushed to its limits.
There’s enough space in the seat and back that you don’t feel boxed in. I added an extra ergonomic cushion and it still feels roomy, which isn’t always the case with chairs in this category. The adjustability helps a lot here, especially the lumbar support. Being able to move it up and down and also forward and back makes it easy to actually get it where you need it, instead of just accepting a fixed position. The armrests are also easy to dial in, especially if you’re switching between typing, reading, or leaning back a bit. The tilt range is useful, and the tilt tension is stronger than I expected. Even at my size it takes a bit of effort to lean back, which I see as a positive since it feels controlled and supportive rather than loose or overly easy to recline. The mesh is another strong point. It came in perfect condition, no snags, no loose threads, no rough edges anywhere. There weren’t any bits of untrimmed plastic on the frame either, which says a lot about the quality control. The mesh itself is taut with a bit of bounce, so it doesn’t sag but still has some give, which makes long sitting sessions more comfortable.
Assembly was straightforward and clearly thought through. The instructions are easy to follow, but what stood out were the built in redundancies that keep you from second guessing anything. There are multiple left and right indicators when installing the arms, a clear front facing marker for the gas lift, and the screws are labeled in the packaging so you’re not guessing which goes where. It’s one of the smoother assembly experiences I’ve had.
I also reached out to activate my warranty and had a very positive experience. I spoke with Alice who was very knowledgeable, quick, warm, and they went out of their way to help me with whatever I needed. When I inquired about the extra screw holes under the chair, she let me know that this was for a foot rest which was still in the production phase and unprompted offered to have one shipped to me when they were ready! There is an excellent team behind the product.
Overall: well built chair with good materials, thoughtful design choices, and good adjustability to make it work for different setups. It feels durable, comfortable over longer periods, and especially well suited if you need something that can handle a larger frame without sacrificing support.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Great product AND customer service!
Color: Black Full Mesh, Style: Executive
I'm having a hard time writing this review because I can't tell which one I like better: the product or the customer service!
I work on a computer all day, so a comfortable office chair is critical for me. This chair is great - it's adjustable in every way I need it to be, especially the armrests. The breathable mesh is both durable and supportive, and is more comfortable to sit in than the "overstuffed" chair it replaced.
Let me just say: no company provides better customer service than MOLENTS. Right after assembling my chair (which was very easy, btw), I registered for the 2 year warranty they offer. The NEXT DAY I received an email from Alice in their customer service department 1) to confirm my warranty, 2) to tell me about the free foam seat cover they were sending me, and 3) to make sure the chair was comfortable and easy to assemble. Very few companies take the effort to follow up with customers right after making a purchase like that.
I'm extremely happy with this purchase. This chair is worth MORE than it's weight in gold, and I strongly recommend to anyone thinking about buying an office chair to buy it from MOLENTS - you won't regret it.
Oh, and if Alice's supervisors are reading this: she absolutely deserves a promotion!
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Reviewed in the United States on March 13, 2026