- Diskless Enclosure to build your own capacity
- High Performance Processor (Transfer up to 100 Mb/s)
- Buffalo's free WebAccess to your own Personal Cloud
- DLNA certified to stream your favorite media
- Nova BACKUP software included for up to 5 licenses
- iTunes server compatible
- Two Drive design supports RAID 0/1
- 3 Year Warranty with 24/7 technical support
From the Manufacturer


Performance Matters
- 3-year warranty
- 24/7 US tech support
LinkStation 421e Diskless Enclosure
High Performance 2-Bay NAS Personal Cloud Storage and Media Server
Buffalo's LinkStation 421e Diskless Enclosure is a high performance 2-bay network storage device that comes equipped with a whole host of features, perfect for storing, sharing, serving and protecting your most important data. Back up multiple PCs and Mac computers simultaneously and enjoy uninterrupted access to terabytes of storage on your network and even over the Internet while away from home.
- Scalable capacity
- High performance -- up to 3X faster than a standard NAS device
- Consolidate storage and back up your PC and Mac computers
- Set up automatic data protection with RAID 1 mirroring
- Create a free personal cloud for access to your files anytime, anywhere over the Internet
- Access files from you smartphone and tablet devices
- Intuitive user interface and easy-to-use setup wizard
- DLNA Certified, iTunes and PS3 media server functionality
- Built-in BitTorrent client for simplified file downloading and management
- USB ports for backup or printer sharing

Custom Scalability
The LinkStation 421e Diskless Enclosure offers easy scalability for terabytes of high capacity network storage and backup.

Exceptional Performance
Equipped with a high performance 1.2 GHz dual issue ARM processor and DDR3 RAM, LinkStation 421e Diskless Enclosure offers much more than simple home shared storage, including transfer speeds up to 80+ Mbps.

Free Personal Cloud Service
While on the go, Buffalo's free WebAccess service allows you to create a personal cloud for easy remote access and file sharing with anyone, anywhere over the Internet.

LinkStation NAS System
LinkStation 421e runs on Buffalo's LinkStation NAS System, providing a host of useful features from network file sharing and security to RAID management (on multi-drive units), remote access and more to simplify your everyday data needs.

RAID 0 Data Protection
When two hard drives are inserted, LinkStation 421e supports RAID 0 for maximum capacity.
RAID 0 combines all drives into a single array offering maximum capacity with no redundancy

RAID 0

RAID 1
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LinkStation 210 | LinkStation 220 | LinkStation 410 | LinkStation 420 | LinkStation 421e | LinkStation 441e | |
Number of Drives / Bays | 1 | 2 | 1 | 2 | 2 | 4 |
Capacity Range | 2 - 4 TB | 2 - 8 TB, 2-Bay Diskless Enclosure | 2 - 4 TB | 2 - 8 TB | No HDDs included, up to 8 TB when HDDs are inserted | No HDDs included, up to 16 TB when HDDs are inserted |
RAID Mode | n/a | 0/1/JBOD | n/a | 0/1/JBOD | 0/1/JBOD (when 2 HDDs are inserted) | 0/1/5/10/JBOD (when 4 disks are inserted) |
Performance | 73 Mbps | 73 Mbps | 80+ Mbps | 80+ Mbps | 80+ Mbps | 80+ Mbps |
CPU | 800 MHz Dual Issue ARM | 800 MHz Dual Issue ARM | 1.2 GHz Dual Issue ARM | 1.2 GHz Dual Issue ARM | 1.2 GHz Dual Issue ARM | 1.2 GHz Dual Issue ARM |
Memory | 256 MB DDR3 | 256 MB DDR3 | 512 MB DDR3 | 512 MB DDR3 | 512 MB DDR3 | 512 MB DDR3 |
USB Accessory Port | 1 x USB 2.0 | 1 x USB 2.0 | 1 x USB 2.0 | 1 x USB 2.0 | 1 x USB 3.0, 1 x USB 2.0 | 2 x USB 3.0, 1 x USB 2.0 |
Active Directory Compatible | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Suitable Uses | Home | Home | Home / Home Office | Home / Home Office | Home / Home Office | Home / Home Office |