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Buffalo TeraStation 5820 8-bay desktop NAS in black finish

Buffalo Technology

Buffalo Technology TS5820DN8004 80TB 8-Bay NAS

SKU CH-Q9TB-8N60F MPN TS5820DN8004

An 8-bay desktop NAS pre-loaded with 80 TB across four 20 TB drives, a quad-core 2.04 GHz processor, 8 GB DDR4, one 10 GbE and two 1 GbE ports, plus USB 3.0 and 2.0, ready for RAID 0, 1, 5, 6.

  • 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 80TB (4 x 20TB)

Option Partially Populated

  • Pre-tested NAS-grade drives and RAID pre-configured save setup time
  • Native 10GbE port enables high-speed transfers without cable upgrades
  • VMware and Windows Server 2022 certified for virtualization deployments
  • AES-256 encryption with two-factor authentication protects stored data
  • Remote management console controls multiple devices from one interface

Eight-bay desktop NAS for business teams

The Buffalo TeraStation 5820 delivers 80 terabytes of pre-configured storage across four installed 20-terabyte drives. An Annapurna Labs AL524 quad-core processor at 2.04 gigahertz and eight gigabytes of DDR4 memory handle file serving, backup and virtualization workloads. RAID levels 0, 1, 5, 6, 10 and JBOD are supported out of the box. The unit ships with drives tested and RAID set up, so deployment starts immediately.

Upgrade from single-drive or two-bay appliances

Moving to this eight-bay platform adds native 10-gigabit Ethernet alongside two gigabit ports, removing the network bottleneck that limits smaller NAS boxes. The jump is worth it when concurrent users need sustained throughput for large media files, VM images or database backups. Four empty SATA bays remain for future expansion without replacing the chassis. Buyers who need more than eight drive slots or a rack-mount form factor cannot use this model.

Limits of 10GbE and SATA interfaces

The single 10-gigabit RJ-45 port caps peak network throughput at ten gigabits per second, so aggregated client traffic above that level will queue. Each drive bay uses SATA, so drive speed is bounded by the SATA interface rather than faster protocols. USB 3.0 and 2.0 ports provide peripheral attach points but do not extend the internal storage bus. Power draw reaches 112 watts under load, requiring a standard 100-240 volt AC supply.

Punti di forza

  • Pre-tested NAS-grade drives and RAID pre-configured save setup time
  • Native 10GbE port enables high-speed transfers without cable upgrades
  • VMware and Windows Server 2022 certified for virtualization deployments
  • AES-256 encryption with two-factor authentication protects stored data
  • Remote management console controls multiple devices from one interface

Caratteristiche tecniche

BrandBUFFALO
SeriesTeraStation 5020
ModelTS5820DN8004
Part NumberTS5820DN8004
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 Capacity80TB (4 x 20TB)
RAIDRAID 0, 1, 5, 6, 10, and JBOD
Drive CompatibilityOP-HD20.0N
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
Weight23.7 lbs
Package ContentsTeraStation, Quick Setup Guide, AC Cable, Front Panel Key, and Warranty Statement
Peso di spedizione10.80 kg
Dimensioni del pacco419 × 351 × 351 mm

Altre versioni di questo modello

altri 5 nella stessa gamma

Stessa famiglia, con memoria, dissipatore o frequenza diversi — confronti prima di decidere.

Domande su questo articolo

What rack or shelf space does the 9.06 x 11.81 x 8.46 in chassis need?

The desktop chassis measures 9.06 inches wide, 11.81 inches deep and 8.46 inches high; allow extra clearance at the rear for the AC cable and four USB ports.

Which drive bays are populated out of the box and what is the correct order for adding the remaining four?

Four 20TB drives ship pre-installed in the first four bays and the RAID is already configured; add new drives to the empty bays only after the unit has been powered off and the front panel unlocked with the supplied key.

When will the pre-installed 20TB drives or the 8GB DDR4 memory need replacement?

The included drives are covered by the manufacturer's three-year warranty; the DDR4 memory is soldered and not user-replaceable, so plan drive refreshes around the warranty period or SMART alerts.

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