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Silver 4-bay rackmount NAS unit with front drive trays and status LEDs

Buffalo Technology

Buffalo Technology TS5420RN3204 4-Bay 32TB rackmount NAS

SKU CH-D2YE-G39AM MPN TS5420RN3204

Four-bay rackmount NAS with 32 TB pre-installed, 10 GbE plus dual 1 GbE, quad-core 2.04 GHz CPU and 8 GB DDR4

  • StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
  • Port RJ-451 x 10GbE + 2 x 1GbE
  • Port USB2 x USB3.0 + 2 x USB2.0
  • HDD Interface4 x SATA (4 x Bay)
  • Form Factor4-Bay
  • ProcessorAnnapurna Labs Alpine Processor AL524 (2.04 GHz Quad-Core)

Included HDD Capacity 32TB (4 x 8TB)

Struck-through versions exist but are not stocked here.

  • Ready-to-use storage with 32 TB pre-configured RAID
  • Quad-core 2.04 GHz processor and 8 GB DDR4 for demanding workloads
  • Native 10 GbE plus two 1 GbE ports for fast network throughput
  • AES-256 encryption, 2-factor authentication and snapshot backup protect data
  • VMware- and Windows Server 2022-certified for virtualization environments

Buffalo TeraStation 5420 4-Bay 32TB

The Buffalo TeraStation 5420 is a 4-bay rackmount NAS delivered with 32TB of pre-installed NAS-grade drives. It runs on an Annapurna Labs Alpine AL524 quad-core processor at 2.04 GHz with 8GB of DDR4 memory. The unit includes a native 10GbE port alongside two 1GbE ports for high-speed network connectivity.

Suited for small offices needing secure.

This appliance suits businesses that want a ready-to-deploy rackmount solution with RAID pre-configured and snapshot backup built in. It supports VMware and Windows Server 2022 for virtualization workloads. Buyers who need more than four drive bays or a desktop form factor should consider a different model.

Native 10GbE port enables fast transfers without

The single 10GbE RJ-45 port provides high-throughput file access over standard cabling, removing the need for additional network cards. Two 1GbE ports offer fallback connectivity for compatible switches. This interface specification determines whether the NAS matches existing network infrastructure.

Highlights

  • Ready-to-use storage with 32 TB pre-configured RAID
  • Quad-core 2.04 GHz processor and 8 GB DDR4 for demanding workloads
  • Native 10 GbE plus two 1 GbE ports for fast network throughput
  • AES-256 encryption, 2-factor authentication and snapshot backup protect data
  • VMware- and Windows Server 2022-certified for virtualization environments

Specifications

BrandBUFFALO
ModelTS5420RN3204
Part NumberTS5420RN3204
StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Port RJ-451 x 10GbE + 2 x 1GbE
Port USB2 x USB3.0 + 2 x USB2.0
HDD Interface4 x SATA (4 x Bay)
Form Factor4-Bay
ProcessorAnnapurna Labs Alpine Processor AL524 (2.04 GHz Quad-Core)
Installed Memory8GB DDR4
Included HDD Capacity32TB (4 x 8TB)
Drive CompatibilityOP-HD8.0N
RAIDRAID 0, 1, 5, 6, 10, and JBOD
Supported ProtocolsTCP/IP
LEDsPower, HDD (Hard Disk Drive), LAN (10/100)
Power100-240 VAC 50/60Hz
Power Consumption62.85W
UsageHigh read/write performance with RAID
Temperature0°C - 40 °C
Humidity0-80% RH non-condensing
Dimensions29.0 x 16.93 x 1.74 in
Weight18.69 lbs.
Package ContentsTeraStation, Quick Setup Guide, AC Cable, and Warranty Statement
Shipping weight12.93 kg
Package size589 × 546 × 213 mm

Other versions of this model

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Questions about this item

What rack space and rails does the TS5420RN3204 need to mount?

The unit is a 4-bay rackmount NAS; it fits a standard 4U rack opening and requires compatible sliding rails for secure installation.

How do I install the included drives and what step is often missed?

The four 8 TB NAS-grade drives ship pre-installed and the RAID array is pre-configured; the step often missed is completing the initial network setup and admin password change before putting the NAS into production.

What drive model replaces a failed bay in this TS5420RN3204?

The supported replacement is the OP-HD8.0N 8 TB NAS-grade hard drive.

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