Buffalo TeraStation 3420 16TB 4-Bay NAS Server (4 x 4TB)

The Buffalo TS3420DN1604 is a four-bay network attached storage server that delivers 16 TB of shared capacity through four included 4 TB NAS-grade hard drives. It provides a straightforward way for teams to centralize files, safeguard projects, and keep data available around the clock.

Each drive sits in a hot-swappable bay, so maintenance or replacement can take place without shutting the system down. Flexible RAID options, including RAID 0, 1, 5, 6, and 10, let you choose the balance of speed, capacity, and redundancy that fits your workflow. Real-time folder replication and a 24-hour hard drive exchange service add an extra layer of protection against unexpected downtime.

A 1.4 GHz Annapurna Labs Alpine AL214 quad-core processor works together with 1 GB of DDR3 memory to handle simultaneous backups, file sharing, and media streaming. Whether you need to move large video files or run scheduled backups for several computers, the hardware keeps tasks running smoothly.

Connectivity is ready for modern networks. Two Gigabit Ethernet ports and an additional 2.5 GbE port provide flexible link aggregation or separate network segments. Two USB 3.1 ports make it easy to attach external drives for quick file transfers or additional backups.

Cloud integration with Dropbox, OneDrive, and Amazon S3 lets you create off-site copies or sync specific folders. Active Directory support for up to 10 000 users simplifies user management inside a Windows domain, and the web-based interface keeps configuration clear even for administrators who are new to NAS devices.

This model fits naturally in small business offices, home studios, or remote work environments where multiple people need reliable access to shared documents, photos, and videos. It also works well as a target for automated computer backups or as central storage for surveillance footage.

• 16 TB total capacity with four pre-installed 4 TB NAS-grade drives
• Hot-swappable drive bays support uninterrupted operation
• RAID 0, 1, 5, 6, 10, and JBOD configuration choices
• 1.4 GHz Annapurna Labs Alpine AL214 quad-core processor
• 1 GB DDR3 memory for smooth multitasking
• Dual Gigabit Ethernet ports plus a 2.5 GbE port
• Two USB 3.1 ports for fast external storage access
• Cloud backup options with Amazon S3, OneDrive, and Dropbox
• Active Directory integration for up to 10 000 users
• Web-based management, real-time folder replication, and 24-hour hard drive exchange service