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TeraStation™ 6400RN

4-bay NAS with advanced Snapshot feature and iSCSI Volume Backup.

Product Data Sheet

TeraStation™ 6400RN

4-bay NAS with advanced Snapshot feature and iSCSI Volume Backup.

The TeraStation™ 6000 NAS series has been especially designed for small and medium sized businesses in need of a highly reliable network storage solution with advanced backup features, powerful hardware and iSCSI protocol.

CPU Speed

2.1 GHz



Number of Bays


Supported RAID Levels


High transmission speed

The 10GbE connectivity impresses with exceptional speed.

iSCSI Volume Backup

iSCSI Volume Backup is a key feature of TS6000. If TS6000 is used to expand storage capacity of a server, the iSCSI volume backup allows data to be transferred directly from one TS6000 to another TS6000, without having to go through the server and thus reducing the server load significantly.

Snapshot and snapshot backup

Thanks to snapshot and snapshot backup functionality, restoring files after editing mistakes or accidental deletion can be done easily and fast. Backups can be performed without errors during the day while employees are working on the files. This makes the TS6000 an ideal file server solution for companies working with CAD data and photo or video editing agencies. Performing snapshots regularly is also a great measure against ransomware attacks.


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 Dropbox, OneDrive and Azure.

iSCSI target support

Works simultaneously as NAS and iSCSI target.

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).

More info

Hot-swap function increases data security

With the hot swap function, the TeraStation™ automatically switches off the defective hard disk even if one hard disk fails, so that it can be replaced safely without interrupting work or losing data.

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.

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.

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.

NovaStor Backup

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.

Hardware System

Form factor
CPU Type
Intel Atom C3538
CPU Speed
2.1 GHz
Number of Cores
Drive Interface
SATA 6Gb/s
Installed OS
Size of Workgroup

Internal Hard Drives

Number of Drives
Type of Drive
Number of Bays
Total Capacity
16 TB, 32 TB
Supported HDD Capacities
2 TB, 4 TB, 8 TB

LAN Interface

Standard Compliance
IEEE 802.3 10Base-T, IEEE 802.3u 100BASE-TX, IEEE 802.3ab 1000BASE-T, IEEE 802.3an 10GBASE-T, IEEE 802.3bz 2.5GBASE-T and 5GBASE-T
Connector Type
LAN Ports
1 x 10GbE, 2 x 1GbE
Max Transmission Rate
2,5/5/10 Gbps / 10/100/1000 Mbps

USB Interface

Connector Type
USB 2.0/3.0 Type A
USB 3.0 Ports
Max Transmission Rate
480 Mbps / 5 Gbps


Client OS
Windows® 10, Windows® 8.1, Windows® 7, Windows Server® 2016, Windows Server® 2012 / 2012 R2, Windows Server® 2008 / 2008 R2, Mac® OS® X 10.11 or later
Standard Warranty 3 years, 24 hour HDD exchange, Technical Support Hotline
430 x 44,3 x 430 mm
8.9 Kg
Box contents
TeraStation™, Quick Setup Guide, Cat 6a Ethernet Cable, AC Cable, Front Panel Key or Rail Kit with Mounting Brackets and Screws and Warranty Statement
Operating Environment
0˚ - 40˚C, humidity 10 - 85% non-condensing
Power Supply
Internal AC 100-240 V, Universal 50/60 Hz
Power Consumption (max.)
100 W
Power Consumption (operation, typical)
64 W
Power Consumption (idle state, typical)
58 W
Power Consumption (standby)
6 W

Software System

Included Software
NAS Navigator 2, NovaBACKUP® Buffalo Edition
Supported RAID Levels
Hot Swap
iSCSI Volume Backup

Protocol Support

Protocol Support
Active Directory support
Active Directory users


Failover solution with other Buffalo NAS devices
Realtime Backup
Folder Replication, Failover
Apple Time Machine®
Backup Software
NovaBACKUP Buffalo Edition
Backup Software Licenses
Cloud Support

Remote Access


Product Part Numbers

Product Code
16 TB TS6400RN1604-EU, 32 TB TS6400RN3204-EU
Manuals / Setup / Latest Product Information
Documentation & Software 27-08-2019
Release notes 5.18 Windows English 18-08-2020
Release notes 5.18 Windows Française 18-08-2020
Release notes 5.18 Intel Mac English 18-08-2020
Release notes 5.18 Intel Mac Française 18-08-2020
Firmware updater 5.18 Intel Mac 18-08-2020
Firmware updater 5.18 Windows 18-08-2020
B-Sync release notes 1.02 Windows English 11-11-2019
B-Sync release notes 1.02 Windows Française 11-11-2019
B-Sync 1.02 Windows 11-11-2019
Snapshot Agent for TeraStation release notes 1.1.0 Windows Server Française 28-08-2019
Snapshot Agent for TeraStation release notes 1.1.0 Windows Server English 28-08-2019
Snapshot Agent for TeraStation 1.1.0 Windows Server 28-08-2019
Boot Authentication release notes 1.00 Windows 16-11-2016
Boot Authentication Tool for TeraStation 1.00 Windows 16-11-2016
NAS Navigator Intel Mac 10.9 to 10.12 Mac OS 10.13 or later, use the Mac App Store --
NAS Navigator Windows --