Buffalo LinkStation 421DE 2-Bay Network Attached Storage Diskless

Buffalo LinkStation 421DE 2-Bay Network Attached Storage Diskless

Product overview



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See More About The Buffalo LinkStation 421DE 2-Bay NAS!

LinkStation™ 421 series: Network Attached Storage: Faster, Easier, More Intuitive, and Front-Facing USB 3.0

Buffalo Technology's new LinkStation™ 421DE is the next generation two bay NAS enclosure: the 421DE comes in a sleek grey chassis and features easy setup, a new intuitive interface, and a free personal cloud for remote access from anywhere via web browsers or smart devices.

Buffalo's new LinkStation™ has the latest CPU with a new generation CPU core for noticeably improved performance that delivers very fast transfer speeds - up to 100MB/s! And when fully populated the LinkStation™ 421DE can be configured in RAID 0 for performance or RAID 1 for redundant storage as part of a back-up solution.

Not only will users be impressed with the speed of Buffalo's new LinkStation™ 421DE, they will also appreciate our new intuitive interface. With quick and direct access to settings, and optimized content presentation, the LinkStation™ 421DE smoothly guides users through easy set up and administration. From the default landing page users will find quick links and toggles to commonly used features which have better wizards, explanations, and graphics; and suddenly, NAS administration is no longer the chore it once was!

New NAS users will appreciate consolidating their media files and data in one central location; and current NAS users will appreciate faster transfer speeds, expanded capacity, and more features. All users will appreciate Buffalo's free personal cloud for remote access via smart devices or web browsers keeping all your data at your fingertips no matter where you are.

Buffalo Technology's LS421DE provides highly customizable network attached storage with greater lexibility. Users can start by installing one drive and add another - when and if needed - to easily increase your network's capacity and capability.

Share your digital content anywhere

It is easy to store and share your music, photos, and videos with anyone. Anyone with a Web browser and access information to your LinkStation™ 421 will be able to view your photos, videos and other digital content.

Access your digital content anywhere

Use your PC, Mac, or WebAccess-i apps on your iPhone or iPad to get easy access to your music, videos and photos stored on your LinkStation™ 421.

View your digital content on any DLNA™ or UPnP™ Certified Media Player

The built-in DNLA™ Media Server allows you to share movies and play music on any DLNA™ or UPnP® Certified media player.


  • Powerful backup NovaBACKUP® Professional: The LinkStation™ 421 is bundled with five licenses of NovaBACKUP® Professional. The NovaBACKUP® Professional automatically backs up your personal documents along with your favorite photos, music and videos, and protects your data on workstations locally and online. Regardless of theft, user error or hardware failure, NovaBACKUP® keeps your data secure.
  • Built-in BitTorrent™ Client: Download media files directly to your LinkStation™ Pro without having to power up your PC with the built-in BitTorrent™ client. A BitTorrent™ client is a programme that uses the BitTorrent™ protocol to manage large file downloads and uploads over the Internet.
  • Buffalo's Web Access Technology: Buffalo's unique Web Access feature allows you to easily access and share your photos, music files, and videos stored on your Buffalo NAS with anyone who has access to the Internet. No special software is required. Simply send a link via e-mail to your friends and family so they can securely access the files you've selected for them to see.
  • Eco-friendly, energy-saving: The Schedule Power Management System reduces CO2 omissions and helps save up to 66% power. The PC Interlocking Power Management System makes power saving effortless.
  • Faster file transfer, disk copying: Turn on the windows-based TurboPC and TurboCopy features to speed up file transfer and disk copying rates.
  • Built-in FTP and print servers: Access your LinkStation™ 421 files via the built-in FTP server or print from anywhere on your network via the built-in print server, using USB 2.0 printer.
  • Active Directory support: Works as a client in an Active Directory domain allowing the LinkStation™ 421 to utilise the domain users and groups.
  • Seamlessly Wired to iTunes®: Access music files stored on your LinkStation™ 421 with your iTunes software.
  • Backup for multiple Mac computers: Supports Apple Time Machine - for backing up multiple Mac computers.
  • Quick and easy setup: The LinkStation™ 421 is easy to configure and install with its simple, web-based interface.
  • Restricted network access: Set access to network at group and user security levels to protect data.
  • USB port: Expand storage by adding a USB hard drive via the USB port.
  • Backup for LinkStations™ on your network: Schedule backups from one LinkStation™ to another over your LAN network or to an external hard disk drive via USB.
  • Gigabit Ethernet port: 10/100/1000 Gigabit Ethernet port enabled for high-speed network connectivity.



Product Description
BUFFALO LinkStation 421 - NAS server - 0 GB
Device Type
NAS server
Host Connectivity
Gigabit Ethernet
Total Storage Capacity
0 GB
Max Supported Capacity
8 TB
Installed Devices / Modules Qty
0 (installed) / 2 (max)
Dimensions (WxDxH)
8.7 cm x 20.5 cm x 12.8 cm
800 g
1 x Marvell ARMADA 370 1.2 GHz (Dual-Core)
Storage Controller
Hard Drive
SATA 3Gb/s
Network adapter - integrated - 10Mb LAN, 100Mb LAN, GigE
512 MB
AC 120/230 V (50/60 Hz)
System Requirements
Microsoft Windows XP, Apple MacOS X 10.5 or later, Microsoft Windows Vista (32/64 bits), Microsoft Windows 7 (32/64 bits), Microsoft Windows Server 2008 (32/64-bits), Windows 8 (32/64 bits), Microsoft Windows Server 2012 (32/64-bits), Windows 8.1 (32/64 bits)



Device Type
NAS server
Host Connectivity
Gigabit Ethernet
Total Storage Capacity
0 GB
Max Supported Capacity
8 TB
Installed Devices / Modules Qty
0 (installed) / 2 (max)
8.7 cm
20.5 cm
12.8 cm
800 g
Enclosure Colour
Sleek grey

Processor / Memory

Processors Installed
1 x Marvell ARMADA 370 1.2 GHz
Number of Cores
Max Supported Qty
512 MB DDR3

Storage Controller

Interface Type
SATA 3Gb/s
RAID Level

Hard Drive

Interface Type
SATA 3Gb/s


Network adapter - integrated
Data Link Protocol
10Mb LAN, 100Mb LAN, GigE
Network / Transport Protocol
Remote Management Protocol
Network Services Compatibility
Microsoft Active Directory (AD), Microsoft CIFS, FTP, Server Message Block (SMB), Apple File Protocol (AFP), HTTP, HTTPS
Print server, iTunes server, FTP server, Buffalo Web Access, BitTorrent Client, DLNA Media Server, Apple Time Machine compatible, NTP time synchronisation
Compliant Standards
IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, DLNA CERTIFIED, UPnP

Expansion / Connectivity

Expansion Bays
2 (total) / 2 (free) x internal
1 x Ethernet 1000Base-T - RJ-45 , 1 x USB 2.0 - Type A , 1 x USB 3.0 - Type A


Power Device
External power adapter
Voltage Required
AC 120/230 V (50/60 Hz)
Power Consumption Operational
48 Watt

Software / System Requirements

Software Included
NovaBACKUP Workstation - Buffalo Edition (5 licences)
OS Required
Microsoft Windows XP, Apple MacOS X 10.5 or later, Microsoft Windows Vista (32/64 bits), Microsoft Windows 7 (32/64 bits), Microsoft Windows Server 2008 (32/64-bits), Windows 8 (32/64 bits), Microsoft Windows Server 2012 (32/64-bits), Windows 8.1 (32/64 bits)

Environmental Parameters

Min Operating Temperature
5 °C
Max Operating Temperature
35 °C
Humidity Range Operating
20 - 80% (non-condensing)


C2G 2m USB 2.0 A/B Cable - Black
Quicklinx: 63M8 | In Stock
C2G 5m USB 2.0 A/B Cable - Black
Quicklinx: 63MW | In Stock
C2G 2-Port USB 2.0 Manual Switch
Quicklinx: 6874 | In Stock
C2G 4-Port USB 2.0 Aluminum Hub
Quicklinx: 7BB4 | In Stock
C2G 12m USB 2.0 A/A Active Extension Cable
Quicklinx: 7BB8 | In Stock


The following resources are available for the Buffalo LinkStation 421DE 2-Bay Network Attached Storage Diskless

Customer reviews

Write review The opinions expressed in this reviews section are those of our customers and not of BT Shop. Nothing contained herein amends BT Shop’s terms and conditions.
5* Well worth it , easy to use , lots of features , quick to setup
Reviewed by Paul on 26/11/2013
Bought this whilst on offer (1/3rd off) , it's extremely well made , installation was fairly easy and quick , put 2 drives in the bays , slide them in, wait for a red light to come on , press a button and it did set the hardware up else itself.

The items Firmware (Software) Setup took a bit of thought , though the in-context help option made it a lot easier when I got stuck.

The only negatives were.

1. The item didn't come with 8 screws to mount drives in the bay , they had to be very flat headed as there isn't a lot of room between the caddy and the top of the NAS where they fit , meaning I had to go out and buy some before I could do the install.

2. Also the promised 5 licences for the PC backup software didn't seem to be included with the packaging.
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