Buffalo TeraStation 3420 Partially Populated 8TB 4-Bay NAS Server (2 x 4TB)

Overview

The Buffalo TS3420DN0802 is a four-bay network attached storage (NAS) system designed to centralize file storage and backup for small businesses and teams of up to thirty users. It comes partially populated with two 4TB NAS-grade hard drives, providing 8TB of storage capacity from the start while leaving two bays open for future expansion. Powered by a 1.4 GHz Annapurna Labs quad-core processor and 1 GB of DDR3 memory, it ensures smooth data transfers even when multiple users access files simultaneously. The integrated 2.5 Gigabit Ethernet port offers faster network speeds over existing copper cabling, making it well suited for handling large media files and databases.

Key features

• Two pre-installed 4TB NAS-grade drives deliver tested and reliable 8TB storage capacity out of the box.
• Four-bay chassis with two empty slots allows easy storage expansion as your data needs grow.
• Supports multiple RAID configurations (0, 1, 5, 6, 10, and JBOD) to tailor data protection and performance to your workload.
• 1.4 GHz quad-core processor combined with 1 GB DDR3 memory keeps file sharing responsive under multi-user access.
• 2.5 Gigabit Ethernet port enables faster data transfers using standard copper network cables without needing upgrades.
• Pre-configured RAID array simplifies setup, allowing most users to start storing data within minutes.
• Compatible with popular cloud services for automated off-site backup, adding an extra layer of data protection.
• Built-in 256-bit drive encryption and optional two-factor authentication enhance security for sensitive information.
• Hot-swappable drive trays enable replacing failed disks without powering down or interrupting operations.
• Manufactured in Japan with TAA-compliant components, backed by a three-year warranty and 24/7 North America-based support.

Key specs

• Storage capacity: 8 TB (2 x 4 TB NAS-grade drives installed)
• Drive bays: 4 total, 2 open for expansion
• Processor: Annapurna Labs quad-core 1.4 GHz
• Memory: 1 GB DDR3
• Network interface: 2.5 Gigabit Ethernet port
• RAID support: 0, 1, 5, 6, 10, JBOD
• Drive encryption: 256-bit
• Drive trays: Hot swappable
• Warranty: 3 years

Connectivity and compatibility

The NAS connects to your existing network through a 2.5 Gigabit Ethernet port, which offers faster transfer speeds than standard Gigabit Ethernet without requiring new cabling. This makes it easy to integrate into most office environments. It supports a variety of RAID modes to optimize for speed, redundancy, or a balance of both, depending on your data protection needs. Additionally, it can link with leading cloud platforms to automate off-site backups, providing resilience against data loss from physical damage or accidental deletion.

Performance and reliability

The combination of a quad-core 1.4 GHz processor and 1 GB of DDR3 memory ensures that file sharing remains smooth even when multiple users access the NAS simultaneously. Hot-swappable drive trays allow you to replace failed disks without downtime, maintaining continuous access to your data. The device’s 256-bit encryption and optional two-factor authentication protect sensitive files from unauthorized access, making it suitable for business environments where data security is critical.

Ideal uses and environments

This NAS is a strong choice for small businesses, creative teams, and workgroups that need a reliable, expandable storage solution without relying on cloud subscriptions. It fits well in office settings where fast local access to large files is essential, such as media production, software development, or document collaboration. The pre-configured setup and robust support make it accessible for IT administrators and users who want a straightforward, secure way to centralize and protect their data.