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Buffalo TeraStation 5420DN 4-Bay Business NAS 8TB (2x4TB) - Drives Included, 10GbE, Hardware RAID, TAA (TS5420DN0802)

SKU: TS5420DN0802

Regular price $1,188.99 USD
Regular price Sale price $1,188.99 USD
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Business Storage That Arrives With the Drives Already In

Keep business data on your own network, protected by hardware RAID and near-instant snapshots, and reach it fast over 10 Gigabit Ethernet. The Buffalo TeraStation 5420DN is a 4-bay desktop NAS that ships with 8TB (2x4TB) of NAS-grade drives already installed. Browse more Buffalo or other data storage.

Deployment Notes

  • Ships with 8TB (2x4TB) installed and two open bays to grow toward four drives.
  • Connects over 10 Gigabit Ethernet, with three RJ45 ports for busy networks.
  • Certified for VMware and Hyper-V, and serves iSCSI targets for virtualization.

Highlights

  • Hardware RAID: supports RAID 0, 1, 5, 6, 10, and JBOD across four bays.
  • Snapshot protection: near-instant snapshots for quick backup and recovery.
  • Alpine quad-core with 8GB DDR4: handles multi-user file serving and iSCSI.
  • Wide protocol support including SMB, AFP, NFS, FTP, SFTP, and iSCSI.
  • Two-factor authentication and TAA compliance for procurement-ready deployments.

Overview

  • Brand: Buffalo
  • Product Line: TeraStation 5020 (TS5420DN)
  • Model / Part Number: TS5420DN0802
  • Product Type: Desktop NAS / SAN Storage System
  • Form Factor: Desktop, 4-Bay

Storage & Drives

  • Installed Capacity: 8 TB (2 x 4TB NAS-grade drives included)
  • Bays: 4 total (2 populated, 2 open for expansion)
  • Drive Interface: Serial ATA/600 (SATA III)

Processor & Memory

  • Processor: Alpine quad-core (4-core) at 2 GHz
  • Memory: 8 GB DDR4 SDRAM

RAID & Data Protection

  • RAID Levels: 0, 1, 5, 6, 10, JBOD
  • Snapshots: Near-instant snapshot backup and recovery
  • Virtualization: VMware and Hyper-V certified
  • Security: Two-factor authentication (2FA)

Network, Ports & Protocols

  • Ethernet: 10 Gigabit Ethernet and Gigabit Ethernet, 3 x RJ-45 ports
  • USB: 4 USB ports (2 x USB 2.0)
  • Protocols: CIFS/SMB, AFP, FTP, SFTP, NFS, iSCSI

Power, Compliance & Warranty

  • Power Supply: 100 W maximum
  • Compliance: TAA Compliant (made in Japan)
  • Warranty: 3-Year Limited

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