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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

  • CPUAnnapurna Labs Alpine Processor AL524 (2.04 GHz Quad-Core)
  • Form factor8-Bay
  • Port count1 × 10GbE + 2 × 1GbE
  • Power draw112 W
  • Supported standardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
  • LAN ports1 × 10GbE + 2 × 1GbE

Included HDD Capacity 64TB (8 x 8TB)

Model 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.

How it compares

Measured against everything we stock in Multi-Bay Desktop NAS, at today’s prices. Recalculated every night.

Price $2,309.99
Pricier than about 83% of the 230 comparable items (median $562.49).

New to this? Paying with USDT: TRC-20 or ERC-20 — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand name(11455)BUFFALO
Product lineTeraStation 5020
Model nameTS5820DN6408
Part numberTS5820DN6408
Product typeDesktop NAS
Recommended useHigh read/write performance with RAID
Processor
CPUAnnapurna Labs Alpine Processor AL524 (2.04 GHz Quad-Core)
Memory
Installed RAM8 GB DDR4
Storage
Drive interface8 x SATA (8 x Bay)
Drives included64 TB (8 × 8 TB)
Supported RAID modes0, 1, 5, 6, 10, and JBOD
Connectivity
Supported standardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Protocol supportTCP/IP
Ports & slots
Port count1 × 10GbE + 2 × 1GbE
LAN ports1 × 10GbE + 2 × 1GbE
USB ports2 x USB3.0 + 2 x USB2.0
Power
Power draw112 W
Power details100-240 VAC 50/60 Hz
Size & build
Form factor8-Bay
Product dimensions9.06 × 11.81 × 8.46 in
Product weight26.9 lb (12.2 kg)
Shipping weight13.61 kg
Package size406 × 356 × 356 mm
Compatibility
Compatible drivesOP-HD8.0N
In the box
In the boxTeraStation, Quick Setup Guide, AC Cable, Front Panel Key, and Warranty Statement
Environment & compliance
Temperature range0 °C - 40 °C
Humidity range0-80% RH non-condensing
More details
Indicator lightsPower, HDD (Hard Disk Drive), LAN (10/100)

Other versions of this model

5 more in the same range

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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