Buffalo TeraStation 5820: 8-Bay Desktop NAS with 80TB Capacity and Drives Included

The Buffalo TeraStation 5820 is a high-performance, secure NAS designed for businesses that demand reliable, continuous storage with effortless administration. Built to handle demanding workloads—whether you’re centralizing backups, sharing large media libraries, or supporting multi-user collaboration—this 8-bay desktop NAS delivers enterprise-grade capability in a compact, easy-to-manage package. This bundle includes 4 x 20TB hard drives, providing a substantial 80TB of raw capacity that can grow with your needs as you expand to the full 8-bay enclosure. With scalable storage, robust data protection, and flexible connectivity, the TeraStation 5820 is purpose-built to keep your team productive and your data safe.

• High-performance, reliable operation for demanding workloads: Designed to handle heavy read and write tasks with a capable multi-core processor and ample memory, the TeraStation 5820 keeps backups, file sharing, virtualization, and media streaming responsive even during peak usage. Its architecture is optimized for continuous operation, making it suitable for small to mid-size business environments that require uninterrupted access to files and services.
• 8 bays with up to 80TB of storage capacity (4x20TB drives included): This desktop NAS starts with a substantial base of 80TB raw capacity using four 20TB drives and leaves room for expansion into all eight bays. The flexible architecture lets you configure storage across multiple RAID levels to balance performance, capacity, and redundancy as your needs evolve.
• Advanced security and data protection: Protect sensitive business information with hardware-accelerated encryption and robust user access controls. The TeraStation 5820 supports enterprise-grade security features such as AES-256 encryption, centralized user management, and integration with Windows Active Directory for seamless authentication. Enterprise-grade data protection features help guard against data loss due to drive failure, user error, or network threats.
• Flexible connectivity and cross-platform sharing: With support for common protocols like SMB, NFS, and FTP, the TeraStation 5820 plays nicely in mixed environments—Windows, macOS, and Linux alike. Dual network connectivity options (including link aggregation) facilitate higher throughput and network resilience, while USB expansion ports enable quick backups or offline transfer of large datasets.
• Easy administration, backups, and business continuity: The web-based management interface provides an intuitive, centralized control panel for setup, monitoring, and maintenance. Create shared folders, schedule automatic backups, implement snapshots or replication where available, and monitor health and performance from a single dashboard. This makes onboarding, regular operations, and disaster recovery planning straightforward for IT teams and even non-technical staff with appropriate permissions.

Technical Details of Buffalo TeraStation 5820

• Model: BUFFALO TeraStation 5820
• Form factor: Desktop NAS
• Bays: 8
• Storage configuration: Includes 4 x 20TB hard drives (total 80TB raw capacity); supports expansion to all eight bays
• RAID support: RAID 0, 1, 5, 6, 10, and JBOD for flexible data protection and performance tuning
• Networking: Dual Ethernet ports for improved throughput and redundancy; supports network teaming
• USB connectivity: USB 3.0 ports for external backups and quick data transfer
• Protocols: SMB, NFS, FTP (cross-platform file sharing and compatibility)
• Security: Hardware-accelerated AES-256 encryption; user access control; Windows AD integration
• Management: Web-based management interface with setup wizard, health monitoring, and alerting
• Power and efficiency: Designed for 24/7 operation with energy-conscious features to balance performance and power use

How to install BUFFALO TeraStation 5820

• 1. Unbox and verify package contents, including the 4 x 20TB drives and all mounting hardware. Confirm you have access to a compatible power outlet and a wired network connection.
• 2. Place the TeraStation on a stable surface in a well-ventilated area and power it off before connecting any cables.
• 3. Install the four included drives into the designated drive bays according to the manual’s guidance, ensuring they seat securely and are properly aligned with the trays or carriers.
• 4. Connect the TeraStation to your network using the included Ethernet cables. If you plan to enable link aggregation, connect to a switch or router that supports it.
• 5. Plug in the power cord and power on the unit. Allow the system to boot; initial startup can take several minutes as drives initialize and the OS loads.
• 6. Access the web-based management interface from a connected computer. Use the default IP address or the Buffalo Utilities tool to locate the device on your network, then log in with the default administrator credentials provided in the manual.
• 7. Run the setup wizard to configure storage, create volumes, and select a RAID level that matches your redundancy and capacity needs. If you are migrating from another NAS, use the wizard to import shares and permissions.
• 8. Create user accounts and assign appropriate permissions for team members. Enable Windows AD integration if your organization uses Active Directory for centralized authentication.
• 9. Configure backup tasks, including scheduled backups to local shares, external USB drives, or remote destinations if supported. Establish a disaster recovery plan and set alert preferences so your IT staff are notified of any hardware or performance issues.
• 10. Set up remote access and mobile access options if needed, ensuring you follow security best practices and enable encryption for data in transit.

Frequently asked questions

• Q: What does the 8-Bay Buffalo TeraStation 5820 include in this bundle? A: The bundle includes the Buffalo TeraStation 5820 desktop NAS with four 20TB hard drives installed, providing up to 80TB of raw storage capacity. Additional drive bays are available for future expansion.
• Q: Can I expand beyond the 80TB with more drives? A: Yes. The TeraStation 5820 is an 8-bay system, so you can add additional drives up to the 8-bay limit and configure larger RAID pools to increase usable capacity.
• Q: What file sharing protocols are supported? A: The unit supports common network protocols such as SMB for Windows networks and NFS for Unix/Linux environments, along with standard FTP for file transfers. These enable cross-platform sharing across your office or data center.
• Q: Is data protected if a drive fails? A: Data protection depends on the RAID configuration you choose. RAID levels such as 5, 6, or 10 provide redundancy and allow the array to survive one or more drive failures while maintaining access to data. Regular backups and snapshots (where supported) further enhance protection.
• Q: Does it support Windows Active Directory integration? A: Yes. Windows AD integration helps streamline user authentication and permissions, making it easier to manage access across your organization.
• Q: Is the system suitable for 24/7 operation? A: The TeraStation 5820 is designed for continuous operation, making it appropriate for business environments that require reliable, always-on storage for shared folders, backups, and collaboration.
• Q: Are there any security features to protect data? A: The device includes hardware-accelerated encryption and robust access controls to safeguard data at rest and in transit. Regular software updates from Buffalo should be applied to maintain security.