TeraStation™ 3020 Series - Desktop 

Business-Class Value Storage Solution - Hard Drives Included


Buffalo's TeraStation 3020 Desktop is a business class value storage solution with NAS-grade hard drives included ensuring compatibility  and reliability with your device. This device features advanced components and solutions at an entry level price - ideal for small offices and professional users requiring cost-effective network storage.


Users can easily share and safeguard data with reliability and RAID data protection, while the powerful quad-core Annapurna processor provides high performance operation during file transfers and everyday NAS functions.

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  • Pre-tested NAS grade Hard drives included with RAID pre-configured

  • Native 2.5GbE port for increased data access without need to upgrade cabling

  • 3 years warranty with Premium 24/7 North American-based support

  • Save time and resources by accessing these devices from a single console with Buffalo’s free Remote Management Service

  • Variety of backup solutions: Hybrid Cloud Backup / Private Cloud Backup / iSCSI backup targetRsync Backup

  • Advanced NAS solutions / Metal chassis / Internal power supply

  • Integrated cloud backup with Dropbox / Dropbox Business / Amazon S3 / Microsoft™ Azure / Microsoft OneDrive

  • Includes NovaBACKUP license(s) for professional-level server and PC backups

  • Optimized performance for 10 - 30 concurrent users

  • 256 bit AES encryption (more about our TeraStation security features)

  • Partially Populated options available

  • Made in Japan / TAA Compliant

  • Scale-as-you-go option available with 4-bay partially populated model for your future capacity increases

  • Works with Buffalo remote monitoring software (Network QuickView by Buffalo) and also compatible to 3rd party software (Monitor Resources)

Improve Data Transfer With 2.5GbE

2.5 gbps diagram comparison chart

  • 2.5 times faster speed with 2.5GbE (Theoretical Values)
  • 2.5Gbps speed without the need to upgrade to CAT6 cabling
  • Store and access your data quickly

Easy and Simple: Save your time and money with all inclusive backup

With NAS-grade hard drives included, Buffalo’s TeraStation is a one stop all-inclusive backup and recovery storage solution.



We make it easy for you, and this is a key factor in choosing Buffalo NAS.


  • Compatible with various features to make it easy for you to manage your NAS and its users.
    (Active Directry / Remote Monitoring / Advanced NTFS Permissions / Rsync Integration etc) (additional details about features)
  • Pre-tested NAS-grade hard drives included with RAID pre-configured
  • TeraStation data can be easily backed up to external storage (DriveStation) or other Rsync based NAS devices
  • 4-bay model has partially populated options for to fulfill your future data requirements while keeping initial costs low.

Reliable Quality: Designed for 24/7 operation

Buffalo terastation business grade components duplex firmware hdd nand inner power unit metal chassis high performance part nas network atached storage  grade hard drives

- Peace of mind included with Industry # 1 support


The TeraStation is designed for reliable, 24/7 operation to keep your data secure. TeraStation 3020 Series products are built in Japan, where each NAS-grade hard drive undergoes comprehensive testing to ensure compatibility and reliability. 


TS3020 comes with free 3-year warranty and 24/7 North American Based Support. If problems arise just one call to our helpdesk and we will work to resolve your issue. 
(more about benefits of Buffalo NAS).


Buffalo also offers optional Next Business Day / Keep Your Drive warranty options. Warranties can be extended up to 5 years
(Warranty Service).


 - Purpose build & optimized for data storage


TS3020 series includes new Buffalo OS, optimized to stabilize  data backup and file sharing 24 hours a day. (more about the latest Buffalo NAS features)


The NAS hardware is built with business class components to provide stable 24/7 operations, including Quad Core CPU.


Buffalo also offers optional Anti-Virus Protection license to make your data further secured from multiple thread (Anti-Virus feature option).

Backup Options to Protect Your Data

TeraStation 3020 is reliable and affordable backup target with multiple uses for your data protection needs. Click below to learn more about each use case.


Hybrid Cloud Backup (3rd Party Cloud Backup) Amazon S3, Dropbox, Microsoft Azure and OneDrive


Private Cloud Backup (Data Replication)


Storage Virtualization (iSCSI backup) (TeraStation 3020 allows businesses to achieve affordable cost per terabyte. TeraStation 5010 offers more stable and reliable support for storage virtualization with VMWare certified. (more about TS5010 series)


- NovaStor backup (The best single-server and PC backup software for servers & workstations)


- Rsync Integration


- Replication password reminder. More details here.

File Server: Centralize and share your digital assets

TeraStation offers the storage solution for increasing needs for easy data management for multiple user file share at a fast speed


- Advanced NTFS Permissions (Windows ACL)
File permissions can be controlled at the subfolder file level from Windows Explorer, making it possible to create new shares with unique permissions on demand from active directory.


- Web Access
You can access your data from anywhere when you need.

Buffalo's Data Recovery Service

This product qualifies for Buffalo's data recovery service for simple logical data issues.

To receive this service, the device must be registered within its original warranty terms.

hand with latex gloves and a stethoscope checking on a technology hard drive

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button to register buffalo americas products

Thank You for Your Support

Reliable & easy to use products with personal pre and post-sales support. These are the fundamentals which have helped us win CRN’s ARC award for the 4th year in a row.



  TS3220DN TS3420DN
Part Numbers TS3220DN0402


Configuration Desktop Desktop

Internal Hard Drives

Number of Drives 2 2 or 4
Capacity Range 4, 8 TB 4, 8, 16, 32 TB
Drive Interface SATA 6 Gbps SATA 6 Gbps
Supported RAID 0/1/JBOD 0/1/5/6/10/JBOD

USB Interface

Standards Compliance USB 3.0 USB 3.0
Connector Type A type A type
Number of Ports 2x USB 3.0 2x USB 3.0
Data Transfer Rates 5 Gbps 5 Gbps


CPU Annapurna Labs® Alpine Processor
AL214 (1.4 GHz Quad-Core)
Annapurna Labs® Alpine Processor
AL214 (1.4 GHz Quad-Core)
Memory 1 GB DDR3 1 GB DDR3

Environmental & Power

Power Consumption

Max 85W

Data Transfer 34W

Idling 30W

Max 85W

Data Transfer 57W

Idling 48W

Power Supply Internal AC 100-240V Universal 50/60Hz Internal AC 100-240V Universal 50/60Hz
Operating Temperature 32˚ - 104˚F (0˚ - 40˚C) 32˚ - 104˚F (0˚ - 40˚C)
Operating Humidity 10 - 85% non-condensing 10 - 85% non-condensing


Unit Dimensions (L x W x H) 9.1 x 6.7 x 6.7 in 9.1 x 6.7 x 8.5 in
Unit Weight 9.7 lbs 15.7 lbs
Package Dimensions (L x W x H) 14.09 x 12.24 x 12.60 in 14.06 x 12.18 x 14.31 in
Package Weight 12.1 lbs 18.1 lbs

LAN Interface

Standards Compliance IEEE802.3bz (2.5GBASE-T), IEEE802.3ab (1000BASE-T), IEEE802.3u (100BASE-TX), IEEE802.3 (10BASE-T)
Number of Ports 1 (2.5GBASE-T), 1 (1000BASE-T)
Data Transfer Rates 2.5Gbps / 1000 Mbps / 100 Mbps / 10 Mbps
Supported Protocols TCP/IP
Network File Services CIFS/SMB, AFP, FTP/FTPS/SFTP, NFS
Connector Type RJ-45

Client OS Support

Windows® 10, Windows® 8.1 (32-bit/64-bit), Windows® 7 (32-bit/64-bit), Windows Server® 2019, Windows Server® 2016, Windows Server® 2012R2, Windows Server® 2012, Windows Server® 2008R2, Windows Server® 2008, Mac® OS® X 10.11 or later


Compatible Hard Drives OP-HD2.0N, OP-HD4.0N, OP-HD8.0N
Warranties 3YNBD20, 3YKYD40, 3YKYD30, 5YNBD40, 5YNBD30, 5YKYD40, 5YKYD30,

Box Contents

TeraStation, Quick Setup Guide, 5e Ethernet Cable ,  AC Cable, Front Panel Key, and Warranty Statement


Network Attached Storage for Business Chart
TeraStation Comparison Chart
TeraStation to Amazon S3 Cloud Integration TS_to_3rd Party Cloud Support
Perfect use for TeraStation 3010 series TS3010_Solution_Scenario.pdf
Value of Hard Drives Included Why Buffalo NAS
Compatible UPS UPS compatibility list for TeraStation x10 series
Check RAID Configurations



    File Size Post Date Version OS Support Notes
2021-26-04 4.82 Windows Firmware updater for TS3010, TS3020, and TS5010 series TeraStations.
2021-26-04 4.82 Mac Firmware updater for TS3010, TS3020, and TS5010 series TeraStations.


    File Size Post Date Version OS Support Notes
2016-24-10 Manuals and Quick Setup Guide for TeraStation 3010 series
2021-26-04 4.82 Windows Readme for firmware updater for TS3010, TS3020, and TS5010 series TeraStations.
2021-26-04 4.82 Mac Readme for firmware update for TS3010, TS3020, and TS5010 series TeraStations.
2020-27-07 3.0.4 Windows Readme for NAS Navigator for Windows
2019-18-07 2.99 Windows Lisez-moi pour NAS Navigator pour Windows (français)
2019-18-07 2.99 Mac Readme for NAS Navigator for Mac NOTE: For users running MacOS 10.13 or later, download and install the latest version of NAS Navigator2 from Mac App Store.
2019-18-07 2.99 Mac Lisez-moi pour NAS Navigator pour Mac (français) REMARQUE: pour les utilisateurs d'ordinateurs sous MacOS 10.13 ou ultérieur, téléchargez et installez la dernière version de NAS Navigator2 à partir du Mac App Store.
2019-06-03 UPS compatibility list for TeraStation x10 and WSS series
2016-10-05 1.00 Windows Readme for Boot Authentication Tool


    File Size Post Date Version OS Support Notes
2020-27-07 3.0.4 Windows NAS Navigator for Windows
2019-18-07 2.99 Mac NAS Navigator for Mac NOTE: For users running MacOS 10.13 or later, download and install the latest version of NAS Navigator2 from Mac App Store.
2021-17-06 202003090000z Private MIB definition file for TS3000, TS5000, TS7000 (TS-2RZ), TS3010, TS3020, and TS5010 series TeraStations
2017-04-01 Link to registration page for all Buffalo products including switches and extended warranties. Also includes setting to provide license information for Novastor NovaBackup software if eligible.
2018-01-06 Windows Download page for the Buffalo Network QuickView software.
2016-10-05 1.00 Windows Boot Authentication Tool for supported TeraStations. This application is used to authorize and manage any TeraStation configured for boot authentication. When the application is installed to your Windows server it will become an authentication server to authenticate the TeraStation during boot.


TeraStation™ 3220DN 4 TB

  • - Desktop
  • - 2
  • - NAS
  • - 4

TeraStation™ 3220DN 8 TB

  • - Desktop
  • - 2
  • - NAS
  • - 8

TeraStation™ 3420DN 8 TB

  • - Desktop
  • - 4
  • - NAS
  • - 8

TeraStation™ 3420DN 16 TB

  • - Desktop
  • - 4
  • - NAS
  • - 16

TeraStation™ 3420DN 32 TB

  • - Desktop
  • - 4
  • - NAS
  • - 32

TeraStation 3420DN Partial 4TB (2 x 2TB)

  • - Desktop
  • - 4
  • - NAS
  • - 4

TeraStation 3420DN Partial 8TB (2 x 4TB)

  • - Desktop
  • - 4
  • - NAS
  • - 8

TeraStation 3420DN Partial 16TB (2 x 8TB)

  • - Desktop
  • - 4
  • - NAS
  • - 8

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