QNAP TS-855EU-8G 8-Bay 2U Rack NAS, 8GB RAM, Intel Atom
QNAP

QNAP TS-855EU-8G 8-Bay 2U Rack NAS, 8GB RAM, Intel Atom

  • Processor manufacturerIntel
  • Internal memory8 GB
  • Storage drive capacity0
  • Power consumption (typical)79.11 W
  • Operating temperature (T-T)0 – 40 °C
  • Security algorithmsAES/FIPS 140/HTTPS/SSH

The QNAP TS-855EU-8G is a 2U rackmount NAS storage system built for businesses that need reliable, scalable network-attached storage in a data centre or server room environment. Running QuTS hero and powered by an Intel Atom processor with 8 GB of RAM , it handles demanding workloads without breaking a sweat.

Description

Eight Drive Bays, Dual LAN, Built for the Rack

  • 8 drive bays with no HDDs included — populate with your own drives for a fully tailored storage configuration
  • 2 × Gigabit Ethernet (RJ-45) ports for link aggregation or network redundancy
  • 2U rackmount form factor fits standard 19-inch server racks
  • RAID support protects data integrity across all connected drives
  • QuTS hero OS with built-in backup functionality for enterprise-grade data management

The TS-855EU-8G suits IT administrators, SMBs and data centres looking for a dense, rack-optimised NAS that scales with their storage needs — whether for file sharing, backup, or virtualisation workloads.

Specifications

General

BrandQNAP
Model nameTS-855EU-8G
Product colourBlack
TypeNAS
BuzzerYes
SnapshotYes
Hot spareYes
System logYes
DHCP serverYes
Chassis typeRack (2U)
Device classSmall & Medium Business
Disk roamingYes
Fan diameter60
RAID rebuildYes
Share folderCIFS/SMB
Fibre ChannelYes
Number of fans3
Backup functionYes
Number of screws56
Dynamic DNS (DDNS)Yes
Built-in FTP serverYes
Management protocolsSNMP V2, V3
Online RAID expansionYes
Online RAID migrationYes
Quick installation guideYes
Access Control List (ACL)Yes
Number of M.2 (M & B) slots2
PCI Express x4 (Gen 3.x) slots2
Operating relative humidity (H-H)5 - 95
Warranty3 years
EAN4711103083376

Processor

Processor manufacturerIntel
Processor familyIntel Atom®
Processor modelC5125
Processor cores8
Processor threads8
Processor frequency2.8 GHz
Processor cache9 MB
ECC supported by processorYes
Number of processors installed1

Memory

Internal memory8 GB
Internal memory typeDDR4
Memory slots2
Memory form factorSO-DIMM

Storage

Hot-swap drive baysYes
Storage drive capacity0
Storage drives installedNo
Storage temperature (T-T)-20 - 70
Installed storage drive typeNo
Storage drive sizes supported2.5/3.5
Supported storage drive typesHDD & SSD
Total installed storage capacity0
Number of storage drives supported8
Supported storage drive interfacesSerial ATA III, Serial ATA II

Camera

Flash memory5000 MB

Ports

USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4
USB portYes
Ethernet LANYes
Ethernet LAN (RJ-45) ports2
Ethernet LAN data rates10/100/1000/2500
USB copy functionYes
Wake-on-LAN readyYes
Fiber optic connectorMTP

Connectivity

Security algorithmsAES/FIPS 140/HTTPS/SSH
Supported network protocolsIPv4, IPv6

Software & security

Operating system installedQuTS hero
Operating system versionh5.0.1
Mac operating systems supportedMac OS X 10.10 Yosemite/Yes
Linux operating systems supportedCentOS 7.0/Ubuntu 14.04/Yes
Other operating systems supportedIBM AIX 7.1/Solaris 10
Server operating systems supportedWindows Server 2008 R2/Windows Server 2012/Windows Server 2012 R2/Windows Server 2016/Windows Server 2019
Windows operating systems supportedWindows 10/Windows 11/Windows 7/Windows 8

Keyboard & controls

On/off switchYes
Reset buttonYes

Battery & power

Power consumption (typical)79.11 W
AC input voltage100 – 240 V
Fan voltage12
Power cables quantity1
Power supply locationBuilt-in
Power consumption (sleep)49.799
Thermal Design Power (TDP)50
Number of power supply units1
Power supply unit (PSU) capacity250

Performance & capacities

Operating temperature (T-T)0 – 40 °C
RAID levels0/1/10/5/50/60/JBOD
Cooling typeActive

Features

Cables includedAC/LAN (RJ-45)
LED indicatorsYes
Package typeBox
RAID supportYes
iSCSI supportYes
Backup featuresiSCSI LUN/USB drive
Browser supportedApple Safari (latest version) Google Chrome (latest version) Microsoft Edge (latest version) Mozilla Firefox (latest version)
S.M.A.R.T. supportYes
Jumbo frames supportYes
Maximum RAM supported64
Supported file systemsexFAT/ext3/ext4/FAT32/HFS+/NTFS/ZFS

Dimensions & weight

Width432 mm
Depth297.4 mm
Height88.6 mm
Weight7.61 kg