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Intel Atom C3338 Dual-core (2 Core) 1.50 GHz - 4 x HDD Supported - 48 TB Supported HDD Capacity - 4 x HDD Installed - 48 TB Installed HDD Capacity - Serial ATA/600 - 8 GB RAM DDR4 SDRAM - Serial ATA/600 Controller - RAID Supported - 0, 1, 5, JBOD RAID Levels - 4 x Total Bays - 10 Gigabit Ethernet, Gigabit Ethernet - 2 USB Port(s) - 2 USB 3.0 Port(s) - Network (RJ-45) - Windows Server IoT 2025 - iSCSI, TCP/IP, CIFS/SMB, AFP, FTP, SFTP, NFS, SNMP - Desktop - TAA Compliant
MSRP$4,143.99
$3,303.05
Save 20%In stock: 11
Genuine Buffalo through authorized distribution — TAA country-of-origin verified and NDAA §889 screened before checkout.
TeraStation WS5020 Windows Server IoT Network Attached Storage devices are purpose-built as efficient data storage and backup solutions for small businesses. These devices run on the Windows Server IoT 2019 operating system, which is a binary equivalent to Windows Server 2019, and integrate seamlessly into Windows-based environments as well as with various Microsoft services such as Azure and OneDrive. This Windows Server version is only available on NAS through the OEM.
The TeraStation NAS offers flexibility to be used as you see fit, such as acting as a multi-purpose file server, a central backup hub for all your files (including backing up to and from cloud services), being set up as a NVR server for security cameras, or serving as a subscription-free backup and disaster recovery (BDR) appliance.
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Product Highlights
Native Windows Server IoT 2025 for Storage Workgroup edition
Pre-tested NAS-grade hard drives included with RAID pre-configured
No CAL (Client-Access Licenses) required
Cost-effective small business NAS with Windows Server enhanced data management and security features
Cloud service integration with Azure, OneDrive, and other Microsoft-compatible services enables to create a hybrid cloud for additional security and flexibility
Includes NovaBACKUP software license(s) for versatile, professional-level server and PC backups
3-year warranty (5-year optional extension) with 24/7 US-based support and Simple Logical Data Recovery service qualification when product is registered
Made in Japan/TAA Compliant
Supports up to 50 users
No CALs Required
Whether you are replacing an aging NAS or installing a new on-site storage or backup server, you can easily implement the Windows Server IoT 2025 NAS without extra cost or hassle. In addition, the WS IoT 2025 TeraStation does not require any Client Access Licenses (CALs). You can have up to 50 users access the NAS without needing to pay additional costs to further help device integration.
Windows Server Optimized for Storage
Windows Server IoT 2025 for Storage Workgroup edition is a specialized version of Windows Server IoT with dedicated file server capabilities and streamlined for small storage solutions. You can integrate any Windows product, service, or platform you are already using as needed, as Windows Server IoT 2025 offers enhanced app compatibility from previous editions.
The NAS integrates seamlessly into Windows environments, with the familiar Windows Server interface minimizing training needs. It also offers the latest Windows Server features including data deduplication and Active Directory with enhanced security and greater scalability.
Enhanced Data Security
Windows Server IoT 2025 enhances security with SMB over QUIC for encrypted remote access, Active Directory with stronger encryption, automated password management through Delegate Managed Service Accounts, mandatory LDAP encryption, and virtualization-based security to protect sensitive keys and workloads.
Peace of Mind with Buffalo
WS5020 comes with a 3-year product warranty that covers all hardware components, including hard drives, along with an optional 5-year extension available for all registered devices.
This device also qualifies for Buffalo's free Simple Logical Data Recovery service as well as 24/7, US-based live phone support.
Limited Warranty: 3 Year
About Buffalo 50 Years of Innovation, Security, and Reliability — Made in Japan Since 1975, we have been committed to engineering technology you can trust. We have since built a legacy of secure and reliable products backed by precision craftsmanship, uncompromising quality and peerless service. That same dedication continues today on our 50th anniversary, driving every product we deliver. Peace of mind included Buffalo Americas is a leading provider of easy-to-use, reliable and secure data storage solutions and award winning pre- and post-sales support. We build top-quality storage, networking, and other technology-related solutions that simplify your experience and deliver a solid return on your investment. Our network attached storage (NAS) devices, many with scale-as-you-go options, are installed with pre-tested hard drives that eliminate the hassle of sourcing and testing drives, saving you time and money. Reliable Award Winning Storage & Support Reliable & easy to use products with personal pre & post-sales support. These are the fundamentals which have helped us win CRN's ARC award 6 times, including 5 years in a row!
| Controllers | |
|---|---|
| Controller Type | Serial ATA/600 |
| RAID Supported | Yes |
| RAID Levels | 0, 1, 5, JBOD |
| General Information | |
| Manufacturer | Buffalo Americas, Inc |
| Manufacturer Part Number | WS5420DN48W5 |
| Brand Name | Buffalo |
| Product Line | TeraStation |
| Product Series | WS5020 |
| Product Model | WS5420DN48W5 |
| Product Name | TeraStation WS5420DN48W5 SAN/NAS Storage System |
| Product Type | SAN/NAS Storage System |
| I/O Expansions | |
| Number of Total Expansion Bays | 4 |
| Interfaces/Ports | |
| Drive Interface | Serial ATA/600 |
| Total Number of USB Ports | 2 |
| Number of USB 3.0 Ports | 2 |
| Network (RJ-45) | Yes |
| Number of Network (RJ-45) Ports | 3 |
| Management & Protocols | |
| Protocols | iSCSI, TCP/IP, CIFS/SMB, AFP, FTP, SFTP, NFS, SNMP |
| Memory | |
| Standard Memory | 8 GB |
| Memory Technology | DDR4 SDRAM |
| Network & Communication | |
| Ethernet Technology | 10 Gigabit Ethernet, Gigabit Ethernet |
| Physical Characteristics | |
| Height | 8.5" |
| Width | 6.7" |
| Depth | 9.1" |
| Form Factor | Desktop |
| Processor & Chipset | |
| Processor Manufacturer | Intel |
| Processor Type | Atom |
| Processor Model | C3338 |
| Processor Core | Dual-core (2 Core) |
| Processor Speed | 1.50 GHz |
| Software | |
| Operating System | Windows Server IoT 2025 |
| Operating System Supported | Windows 11, Windows 10, Windows 10 x64, Windows 8.1, Windows 8.1 x64, Windows 7, Windows 7 x64, Windows Server 2022, Windows Server 2016, Windows Server 2019, Windows Server 2012, Windows Server 2012 R2, Mac OS X 10.12 Sierra |
| 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 | 48 TB |
| Hard Drive Interface | Serial ATA/600 |
| Hard Drive Configuration | 4 x 12TB |
| Warranty | |
| Limited Warranty | 3 Year |
| Miscellaneous | |
| Package Contents |
|
| Country of Origin | Japan |
| TAA Compliant | Yes |
Matched on Desktop · iSCSI
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