Buffalo Americas |SKU: WS5420DN16W6

Buffalo TeraStation 16TB 5420DN 4-Bay Nas Server (4 x 4TB)

$2,049.99
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Product highlights

  • NAS grade hard drives included with RAID pre-configured
  • Efficient and high-speed backup with a deduplication feature
  • Includes NovaStor Backup license for professional-level server 
  • Designed for 24/7 operation
  • Native 10GbE port/8GB ECC memory
  • Highly secured with the latest SMB protocol support (3.1.1)

In the box

  • Buffalo TeraStation 16TB 5420DN 4-Bay Nas Server (4 x 4TB)
  • AC Cable 
  • 6A Ethernet Cable 
  • Front Panel Key 
  • Quick Setup Guide
  • Setup Media (SD Card)
  • Limited 3-Year Warranty

Free standard shipping

*Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

Free Local Pickup

Please call for store stock availability. Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

Questions? We’re Here to Help

Call or email one of our experts.

The Buffalo TeraStation 16TB 5420DN Nas Server is a reliable 4-bay network attached storage solution integrated with Windows Storage Server 2016. This specialized operating system helps simple deployment and management of your growing storage demands as it integrates seamlessly with your existing Windows-based environment. The 5420DN is an ideal solution for consolidating multiple file servers into a single solution that enables cost reduction and lowering of the overhead on your existing servers for other workloads.

Easy and Simple NAS-Grade Drives

With hard drives included, the TeraStation is a one-stop, all-inclusive backup and recovery storage solution, allowing you to store in your network just by plug and play. The Windows Storage Server 2016 provides you with seamless integration for expanding the storage capability. The device is preconfigured for out-of-the-box use and 5420DN integrates with your existing Windows environment infrastructures. Now make full use of commonly-used network environments and standard management software you already have for your environment with the 5420DN TeraStation. There is a reason why Buffalo NAS has been chosen, for making your life easy and simple. The pre-tested NAS-grade hard drives included with RAID pre-configured LCD allow easy visibility of the current unit status.

Complete your Backups Faster Than Ever 

Greatly benefit your business with this 10GbE TeraStation and by growing the data and file size with its smooth networking. The 10GbE-compatible devices and category 6A or higher rated cables allow improvements to office productivity by eliminating network bottlenecks and shortening data backup times. No 6A cabling in your office? No problem! 5420DN is compatible with IEEE802.3bz and it gives you faster data transfer speeds even with your CAT 5e environment. 

Designed for 24/7 Operation

Keep your data secure with our small business purpose-built TeraStation, designed for 24/7 operation. The Terastation WS5020 products are built in Japan and pass severe burn-in testing with NAS-grade hard drives included, thus ensuring compatibility and reliability. 

Protect Your Data with Affordable Backups

The WS5020 series run the Windows Storage Server OS, which is optimized for data backup and file sharing. Featuring optimal performance with 60 simultaneous client PCs and access for 24 hours. Also, the TeraStation data can be easily backed up to external storage or other Rsync-based NAS devices.

Shipping & Returns

  • Same Day Shipping


    All orders placed by 1PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

  • Free Standard Shipping


    We offer free standard shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).



  • Easy returns


    If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.


Frequently Asked Questions

How do I return an item?

Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.

Will I receive a full refund when I return an item?

You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.

How many days do I have to make a return?

You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 

My item was damaged in transit. How do I place a return?

If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage. 

There’s an issue with my order, what should I do?

Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.

Can I exchange an item?

We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.

If I ordered a kit, do I have to return all the items?

If you ordered a kit, you must return all components and accessories to receive a full refund.

I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?

If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.

Do you offer repairs?

We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.

What is your return policy?

Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

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