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Buffalo

BUFFALO TeraStation WS5420DN 4-Bay Windows Server IoT 2025 Desktop NAS 16TB (4x4TB) HDD Included TAA Compliant

$2,599.99
$1,844.36 SAVE $755.63
2 availableas of 07/15/2026

Order within for shipment today

Should arrive by Wed, Sep 30 with free ground shipping

Compliance, certifications and origin

  • TAA compliant
  • Origin: Japan
Rated excellent by our customers Read our reviews

Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

Buffalo's TeraStation WS5020 IoT 2025 is a robust NAS solution powered by Windows Server IoT 2025 for Storage, offering seamless integration into Windows environments, centralized data management, and lower IT costs-all the while keeping your data secure.

With NAS-grade drives and RAID pre-configured, the WS5020 is Day One Ready. The WS5020 also supports your existing Windows tools and services, and includes key features like data deduplication, enhanced Active Directory, and improved scalability.

More from the manufacturer

Technical specifications

General Information

Manufacturer Buffalo Americas, Inc
Manufacturer Part Number WS5420DN16W5
Manufacturer Website Address http://www.buffalotech.com
Brand Name Buffalo
Product Line TeraStation
Product Series WS5020
Product Model WS5420DN16W5
Product Name TeraStation WS5420DN16W5 SAN/NAS Storage System
Product Type SAN/NAS Storage System

Storage

Number of Hard Drives Supported 4
Number of Hard Drives Installed 4
Total Hard Drive Capacity Supported 48 TB
Total Hard Drive Capacity Installed 16 TB
Hard Drive Interface Serial ATA/600
Hard Drive Configuration 4 x 4TB

Processor & Chipset

Processor Manufacturer Intel
Processor Type Atom
Processor Model C3338
Processor Core Dual-core (2 Core)
Processor Speed 1.50 GHz

Memory

Standard Memory 8 GB
Memory Technology DDR4 SDRAM

Network & Communication

Ethernet Technology 10 Gigabit EthernetGigabit Ethernet

I/O Expansions

Number of Total Expansion Bays 4

Controllers

Controller Type Serial ATA/600
RAID Supported Yes
RAID Levels 0, 1, 5, JBOD

Interfaces/Ports

Drive Interface Serial ATA/600
Total Number of USB Ports 2
Number of USB 3.2 Gen 1 Ports 2
Network (RJ-45) Yes
Number of Network (RJ-45) Ports 3

Software

Operating System Windows Server IoT 2025
Operating System Supported Windows 10 x64Windows 7 x64Windows Server 2019Windows 8.1Windows 8.1 x64Windows Server 2012Windows Server 2022Windows Server 2012 R2Windows Server 2016Mac OS X 10.12 SierraWindows 7Windows 11Windows 10Windows 11 x64

Management & Protocols

Protocols FTPNFSCIFS/SMBTCP/IPAFPiSCSISNMPSFTP

Physical Characteristics

Height 8.5"
Width 6.7"
Depth 9.1"
Form Factor Desktop

Miscellaneous

Package Contents
  • TeraStation WS5420DN16W5 SAN/NAS Storage System
  • AC Cable
  • 6a Ethernet Cable
  • Front Panel Key
  • Warranty Statement
  • Quick Setup Guide
  • Setup Media (SD Card)
Country of Origin Japan
TAA Compliant Yes

Warranty

Limited Warranty 3 Year

Ratings and reviews

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Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.