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Buffalo TeraStation 5420 four-bay desktop NAS in black finish

Buffalo Technology

Buffalo Technology TS5420DN2402 4-Bay 24TB Desktop NAS

SKU CH-CD1G-852PE MPN TS5420DN2402

A 4-bay desktop NAS with 24 TB of pre-installed drives, a 2.04 GHz quad-core processor, 8 GB DDR4 memory, native 10GbE plus dual 1GbE ports, RAID 0/1/5/6/10/JBOD, AES-256 encryption.

  • TypeDesktop NAS
  • StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
  • Ports1 x 10GbE
  • Port RJ-451 x 10GbE + 2 x 1GbE
  • Port USB2 x USB3.0 + 2 x USB2.0
  • HDD Interface4 x SATA (4 x Bay)

Included HDD Capacity 24TB (2 x 12TB)

Option Partially Populated

  • Pre-configured RAID with 24TB of NAS-grade drives saves setup time
  • 10GbE port enables high-speed file transfers without cable upgrades
  • Quad-core 2.04 GHz processor with 8GB DDR4 handles demanding workloads
  • AES-256 encryption, 2-factor authentication and snapshots protect business data
  • VMware and Windows Server 2022 certified for virtualization deployments

Ready-to-use 24 TB desktop NAS

The Buffalo Technology TS5420DN2402 arrives with two 12 TB NAS-grade drives pre-installed and RAID pre-configured so the unit is operational straight out of the box. A quad-core Annapurna Labs Alpine AL524 processor at 2.04 GHz and 8 GB of DDR4 memory handle demanding file workloads and virtualization tasks. The four-bay chassis supports SATA drives and offers RAID 0, 1, 5, 6, 10 and JBOD for flexible data protection.

Small businesses needing secure shared storage

Teams that require native 10 GbE connectivity, AES-256 encryption, two-factor authentication and snapshot backup will find the feature set aligned with compliance and productivity goals. VMware and Windows Server 2022 certification simplifies integration into existing virtual infrastructure. Organisations without 10 GbE cabling or those needing more than four drive bays should evaluate larger or differently equipped platforms.

Cloud sync and remote management included

Built-in compatibility with Amazon S3, Dropbox, Microsoft Azure and OneDrive enables automated off-site replication without third-party software. The Remote Management System lets administrators monitor and configure multiple TeraStation units from a single console, reducing overhead for distributed offices. Two USB 3.0 and two USB 2.0 ports provide direct-attached backup or expansion options.

Pluspunten

  • Pre-configured RAID with 24TB of NAS-grade drives saves setup time
  • 10GbE port enables high-speed file transfers without cable upgrades
  • Quad-core 2.04 GHz processor with 8GB DDR4 handles demanding workloads
  • AES-256 encryption, 2-factor authentication and snapshots protect business data
  • VMware and Windows Server 2022 certified for virtualization deployments

Specificaties

BrandBUFFALO
SeriesTeraStation 5020
ModelTS5420DN2402
Part NumberTS5420DN2402
TypeDesktop NAS
StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Ports1 x 10GbE
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 Capacity24TB (2 x 12TB)
RAIDRAID 0, 1, 5, 6, 10, and JBOD
Drive CompatibilityOP-HD12.0N
Supported ProtocolsTCP/IP
LEDsPower, HDD (Hard Disk Drive), LAN (10/100)
Power100-240 VAC 50/60Hz
Power Consumption60W
Temperature0°C - 40 °C
Humidity0-80% RH non-condensing
UsageHigh read/write performance with RAID
Dimensions9.1 x 6.7 x 8.5 in
Weight18.1 lbs
Package ContentsTeraStation, Quick Setup Guide, AC Cable, Front Panel Key, and Warranty Statement
Verzendgewicht7.26 kg
Pakketafmetingen381 × 356 × 305 mm

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Do I need to buy four drives for the four-bay chassis or does the TS5420DN2402 ship with disks installed?

The unit includes two 12 TB NAS-grade drives pre-installed and RAID-configured, so it works immediately; the remaining two bays are empty for future expansion.

Can I connect the 10 GbE port to my existing Cat5e patch panel and still reach full speed?

The 10 GbE RJ-45 port requires Cat6a or better cabling for 10 Gbit/s; on Cat5e it will negotiate down to 1 Gbit/s alongside the two dedicated 1 GbE ports.

How do I confirm the Annapurna Labs AL524 quad-core CPU and 8 GB DDR4 are operating normally after first boot?

Log into the web dashboard — the system-info page shows the 2.04 GHz quad-core processor, 8 GB DDR4 memory, drive health, RAID status and network link speeds in real time.

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