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Buffalo TeraStation 5820 8-bay desktop NAS, black enclosure with front drive bays

Buffalo Technology

Buffalo Technology TS5820DN6408 8-Bay 64TB NAS

SKU CH-7N3S-CG39W MPN TS5820DN6408

Eight-bay desktop NAS holding 64 TB on pre-installed drives with a 10 GbE port and RAID 0, 1, 5, 6, 10 or JBOD

  • TypeDesktop NAS
  • StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
  • Ports1 x 10GbE + 2 x 1GbE
  • Port RJ-451 x 10GbE + 2 x 1GbE
  • Port USB2 x USB3.0 + 2 x USB2.0
  • HDD Interface8 x SATA (8 x Bay)

Included HDD Capacity 64TB (8 x 8TB)

Option Fully Populated

  • 64 TB storage capacity with eight 8 TB NAS-grade drives included
  • 10 GbE and dual 1 GbE ports for high-speed network transfers
  • Quad-core 2.04 GHz processor with 8 GB DDR4 memory for demanding workloads
  • RAID 0, 1, 5, 6, 10 and JBOD with snapshot backup and AES-256 encryption
  • VMware and Windows Server 2022 certified for virtualization environments

Ready-to-deploy 8-bay NAS with 64 TB

The Buffalo TeraStation 5020 arrives fully populated with eight 8 TB NAS-grade drives in a desktop chassis. The array is pre-configured in RAID so the unit can serve files immediately after network connection. It targets small-business teams that need secure, high-capacity storage without the delay of drive installation or RAID setup.

Quad-core Alpine AL524 with native 10 GbE

A 2.04 GHz Annapurna Labs processor and 8 GB of DDR4 memory drive the storage engine, while one 10 GbE and two 1 GbE RJ-45 ports handle network traffic. Four USB ports — two USB 3.0 and two USB 2.0 — provide direct-attached expansion or backup targets. The platform supports VMware and Windows Server 2022 certification for virtualisation workloads.

Snapshot backup and cloud-tiering built in

AES-256 volume encryption, two-factor authentication and snapshot technology protect data against ransomware and accidental deletion. Integrated cloud agents connect to Amazon S3, Dropbox, Microsoft Azure and OneDrive for off-site tiering. A remote-management console lets administrators monitor multiple TeraStation units from a single interface.

Highlights

  • 64 TB storage capacity with eight 8 TB NAS-grade drives included
  • 10 GbE and dual 1 GbE ports for high-speed network transfers
  • Quad-core 2.04 GHz processor with 8 GB DDR4 memory for demanding workloads
  • RAID 0, 1, 5, 6, 10 and JBOD with snapshot backup and AES-256 encryption
  • VMware and Windows Server 2022 certified for virtualization environments

Specifications

Brand(11455)BUFFALO
SeriesTeraStation 5020
ModelTS5820DN6408
Part NumberTS5820DN6408
TypeDesktop NAS
StandardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Ports1 x 10GbE + 2 x 1GbE
Port RJ-451 x 10GbE + 2 x 1GbE
Port USB2 x USB3.0 + 2 x USB2.0
HDD Interface8 x SATA (8 x Bay)
Form Factor8-Bay
ProcessorAnnapurna Labs Alpine Processor AL524 (2.04 GHz Quad-Core)
Installed Memory8GB DDR4
Included HDD Capacity64TB (8 x 8TB)
RAIDRAID 0, 1, 5, 6, 10, and JBOD
Drive CompatibilityOP-HD8.0N
Supported ProtocolsTCP/IP
LEDsPower, HDD (Hard Disk Drive), LAN (10/100)
Power100-240 VAC 50/60Hz
Power Consumption112W
Temperature0°C - 40 °C
Humidity0-80% RH non-condensing
UsageHigh read/write performance with RAID
Dimensions9.06 x 11.81 x 8.46 in
Weight26.9 lbs
Package ContentsTeraStation, Quick Setup Guide, AC Cable, Front Panel Key, and Warranty Statement
Shipping weight13.61 kg
Package size406 × 356 × 356 mm

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Questions about this item

How many drives can the 8-bay SATA chassis hold before RAID rebuilds slow down?

The unit ships with eight 8 TB SATA drives filling every bay, giving 64 TB raw capacity under RAID 0, 1, 5, 6, 10 or JBOD.

What is the power draw and resulting heat when the Annapurna AL524 quad-core and eight drives run continuously?

Rated consumption is 112 W from a 100-240 VAC supply, so sustained operation produces heat equivalent to that wattage.

Which network cables and switch ports are needed to use the native 10GbE and dual 1GbE links?

Standard RJ-45 Cat6a or better for the 10GbE port and Cat5e or better for the two 1GbE ports; no SFP+ modules required.

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