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Black rectangular desktop NAS unit with four drive bays visible on the front

Buffalo Technology

Buffalo Technology TeraStation 5420DN 32TB 4-bay 10GbE NAS

SKU CH-M0D5-E18PC

A 32 TB four-bay NAS with included drives, native 10GbE, 256-bit encryption and snapshot backup for business data protection

  • NAS-grade drives included for immediate 32TB capacity
  • Native 10GbE port enables fast file transfers
  • 256-bit AES encryption secures stored data
  • Snapshots provide near-instant backup and recovery
  • Quad-core 2.0 GHz processor with 8 GB DDR3 ECC RAM

Purpose-built 32 TB storage server

The Buffalo Technology TeraStation 5420DN arrives with four 8 TB NAS-grade hard drives installed, delivering 32 TB of raw capacity in a desktop form factor. It targets small-to-medium businesses that need an immediately operational file server, backup target or iSCSI volume without sourcing drives separately.

Native 10GbE port sets the throughput ceiling

A single 10GbE interface provides the maximum network bandwidth available on this unit, so aggregate client traffic cannot exceed that link speed. The Annapurna Labs Alpine AL524 quad-core processor running at 2.0 GHz and 8 GB of DDR3 ECC memory handle RAID calculations and protocol overhead within that constraint.

Desktop chassis with four drive bays

The four-bay enclosure uses a closed-system firmware architecture that enforces 256-bit AES volume encryption and two-factor authentication at the appliance level. Drives are mounted internally, so physical security depends on the room or cabinet where the unit sits; expansion beyond the four bays requires a different model.

Highlights

  • NAS-grade drives included for immediate 32TB capacity
  • Native 10GbE port enables fast file transfers
  • 256-bit AES encryption secures stored data
  • Snapshots provide near-instant backup and recovery
  • Quad-core 2.0 GHz processor with 8 GB DDR3 ECC RAM

Specifications

No published specifications for this item yet.

Questions about this item

Should I pick the 32 TB 4-bay model or a larger capacity version?

The 32 TB unit ships with four 8 TB drives in a 4-bay chassis; larger 12-bay models offer 16 GB RAM instead of 8 GB and enterprise-grade HDDs.

What does the native 10GbE port deliver in daily use?

The 10GbE port enables high-speed file transfers over standard cabling, removing the usual 1 GbE bottleneck for large backups and media workloads.

How does the Alpine AL524 2.0 GHz quad-core CPU affect throughput?

The Annapurna Labs Alpine AL524 processor with 2.0 GHz quad-core performance handles RAID calculations and encryption without dropping speed under heavy data loads.

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