Buffalo 

Buffalo WS5420RN48W5 TERASTATION WS5420RN 40TB 4-BAY RM NAS

Mfg Part Number:  WS5420RN48W5  
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Price: $3,382.14
Quantity:
In Stock: 1
Last Updated: Jan 17, 2026
No Sales Tax except these states
, PO and Wire.

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

Main Specification
General Information
Manufacturer Buffalo Americas, Inc
Manufacturer Part Number WS5420RN48W5
Manufacturer Website Address http://www.buffalotech.com
Brand Name Buffalo
Product Line TeraStation
Product Series WS5020
Product Model WS5420RN48W5
Product Name TeraStation WS5420RN48W5 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 48 TB
Hard Drive Interface Serial ATA/600
Hard Drive Configuration 4 x 12TB
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 Ethernet
Ethernet Technology Gigabit 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 3
Number of USB 3.2 Gen 1 Ports 3
Network (RJ-45) Yes
Number of Network (RJ-45) Ports 3
Software
Operating System Windows Server IoT 2025
Operating System Supported Windows Server 2012
Operating System Supported Windows Server 2012 R2
Operating System Supported Windows Server 2016
Operating System Supported Windows 7 x64
Operating System Supported Windows 10 x64
Operating System Supported Windows 11 x64
Operating System Supported Mac OS X 10.12 Sierra
Operating System Supported Windows Server 2019
Operating System Supported Windows 7
Operating System Supported Windows Server 2022
Operating System Supported Windows 8.1 x64
Operating System Supported Windows 8.1
Operating System Supported Windows 10
Operating System Supported Windows 11
Management & Protocols
Protocols TCP/IP
Protocols SNMP
Protocols CIFS/SMB
Protocols NFS
Protocols SFTP
Protocols AFP
Protocols iSCSI
Protocols FTP
Physical Characteristics
Height 1.7"
Width 16.9"
Depth 16.9"
Form Factor Rack-mountable
Miscellaneous
Package Contents
  • TeraStation WS5420RN48W5 SAN/NAS Storage System
  • AC Cable
  • 6a Ethernet Cable
  • Warranty Statement
  • Quick Setup Guide
  • Setup Media (SD Card)
  • Rail Kit with Mounting Brackets and Screws
Country of Origin Japan
TAA Compliant Yes
Warranty
Limited Warranty 3 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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