TeraStation™ 3420DN (TS3420DN)
Great value, high performance NAS. 4 bay business NAS with integrated multigigabit port.
The TeraStation™ 3420 series is a high-performance, cost-effective 4-bay Network Attached Storage (NAS) solution, ideal for small businesses and demanding small office and home office (SOHO) users. With a powerful Annapurna Labs Alpine AL-214 1.4 GHz quad-core processor, it provides speedy transfer rates and stable operation during heavy-load work tasks. The robust central processing unit (CPU) and 1 GB of DDR3 RAM means it can run multiple services simultaneously. This allows businesses to focus on concurrent tasks with minimal performance degradation.
CPU Speed - 1.4GHz
RAM - DDR3 1GB
Number of Bays - 4
Supported RAID Levels - JBOD, 0, 1, 5, 6, 10
Users can make backup copies from TeraStation to a rsync-compatible device from another manufacturer. This function also allows backups to be made from another manufacturer’s rsync-compatible NAS to the TeraStation NAS.
TeraStation functions as a client of an Active Directory domain, so that domain users and groups can be used. This means that they can be used in domain environments of companies with up to 10,000 users and groups.
Buffalo’s TeraStation Series features B-Sync, which allows users to easily synchronize files between their TeraStation and 3rd party cloud services to make backups. The Buffalo NAS supports Amazon S3 Cloud Services, Dropbox, OneDrive and Azure.
Including Buffalo VIP service
Replacement of defective hard disks within 24 hours
If you want to replace a defective hard disk, just let us know. If your order is in the system before 12 noon and the hard drives are in stock, they will be replaced within 24 hours. Applies within the 3 year warranty for each TeraStation and LinkStation NVR sold in the EU. (Outside the EU it can take longer).
Intuitive web management interface
The web interface has a dashboard that offers the user more effective views of system status, the ability to resize windows (even on the phone) and a more comfortable button layout.
Equipped with reliable NAS HDDs
This series is completely equipped with special NAS hard drives – for even more performance and reliability in RAID and continuous operation.
Replication with TeraStation
By replication, a folder in two separate TeraStations™ is synchronized almost in real time. This only happens in one direction (not bi-directional) – from the source to the destination. This function can be set up in LAN and WAN. WAN setup includes remote connection via port forwarding and VPN setup.
iSCSI target support
Works simultaneously as NAS and iSCSI target.
Including 11 licenses NovaBACKUP® Buffalo Edition software. NovaBACKUP® provides small and medium-sized companies that value the protection of their digital data with a complete data security solution in one package.
Allocation of disk quota
Hard disk quotas prevent the misuse of storage space by allocating appropriate amounts of storage to users.
Annapurna Labs® AL214 (Dual Core)
Internal Hard Drives
Number of Drives
4 (fully populated), 2 (partially populated)
Type of Drive
Number of Bays
4TB, 8TB, 16TB, 32TB
Supported HDD Capacities
1TB, 2TB, 4TB, 8TB
Max Transmission Rate
USB Type A
USB 2.0 Ports
USB 3.0 Ports
Max Transmission Rate
Windows® 10, Windows® 8.1, Windows® 7, Windows Server® 2019, Windows Server 2016, Windows Server® 2012 R2, Windows Server 2012, Mac OS X 10.11 or higher
Standard Warranty 3 years, 24 hour HDD exchange, Technical Support Hotline
170 x 215 x 230 mm
OP-HD1.0N, OP-HD2.0N, OP-HD3.0N, OP-HD4.0N
0-40°C, humidity 10-85% (non-condensing)
Internal AC 100-240V Universal, 50/60Hz
Power Consumption (max.)
Power Consumption (operation, typical)
Power Consumption (idle state, typical)
Power Consumption (standby)
NASNavigator2, NovaBACKUP® Buffalo Edition (one server and ten workstation licenses)
Supported RAID Levels
JBOD, 0, 1, 5, 6, 10
SMB/CIFS, AFP, FTP/FTPS, SFTP, NFS, RSYNC
Active Directory support
Active Directory users
Failover solution with other Buffalo NAS devices
Folder Replication, Failover, Scheduled backup, Cloud backup
NovaBACKUP Buffalo Edition
Backup Software Licenses
Product Part Numbers
TS3420DN0404-EU - 4TB, TS3420DN0804-EU - 8TB, TS3420DN1604-EU - 16TB, TS3420DN1602-EU - 16TB, TS3420DN3204-EU - 32TB,
| Stock code || IBB-3420-16|
| Brand || Buffalo|
| Series || TeraStation 3420DN|
| Model || TS3420DN1604-EU|
| Type || 4-Bay NAS with 4x HDD, 1GbE and 2.5GbE|
| ROHS || Y|
| Date added || 04/10/2019|
TS3420DN1604-EU Spec Information
| Capacity || 16TB|
| Form Factor / Drive Height || 170 x 215 x 230 mm|
| Platter size || 3.5"|
| RAM/Cache || 1GB DDR3|
| Guarantee || 3yr-Swap|
| Processor || Annapurna Labs AL214 Quad-core 1.4GHz|
| CPU Mark (cpubenchmark.net) || low|
| Current drives || 4|
| Total Drives || 4|
| RAID || 0:1:5:JBOD:|
| RAID Levels || JBOD, RAID 0, 1, 5, 6, 10|
TS3420DN1604-EU Spec Connections
|USB3||USB3 type A (host)||External||2|
| Speed/RPM || SATA to 1GbE and 2.5GbE|
| Weight (kg) || 8kg|
| Weight (bare) || 7kg|
| Colour || Black|
Buffalo TeraStation 5410RN TS5410RN0804-EU 4-Bay Rackmount NAS with 4x HDD; 1GbE and 10GbE 8TB |
Buffalo TeraStation 5410DN TS5410DN2404-EU 4-Bay NAS with 4x HDD; 1GbE and 10GbE 24TB |
Buffalo TeraStation 5410RN TS5410RN2404-EU 4-Bay Rackmount NAS with 4x HDD; 1GbE and 10GbE 24TB |
Buffalo TeraStation 5410RN TS5410RN3204-EU 4-Bay Rackmount NAS with 4x HDD; 1GbE and 10GbE 32TB |
Buffalo TeraStation 6400RN TS6400RN3204-EU 4-Bay Rackmount NAS with 4x HDD; 1GbE and 10GbE 32TB |
Why People Choose Us?
14 Day Return Guarantee
If you change your mind, you can return all or part of your order.
Next Day Delivery
Order before 4pm*, and in-stock products will be with you the next day. (Or Saturday. Or even Same Day).
Wherever you are in the world, we can get your order to you at high speed.
SpanStor Build & Test
Our free service helps you choose the right NAS and Drives, then makes sure it is built & ready to use as soon as you get it.
Professional Live Support
We are here to assist you - before, during and after your purchase, by phone, email or live chat.