Qnap TS-855eU-8G, 2U, 8 x 2.5"/3.5" SATA, Intel Atom C5125 8C/8T, 8 GB SODIMM DDR4 (max. 64GB ), 2 x 2.5GbE, Single PSU

Data sheet

Height

88.6 mm

Width

432 mm

Depth

297.4 mm

Weight

7.61 kg

Type

SAN

Memory slots

2

Storage temperature (T-T)

-20 - 70 °C

Operating temperature (T-T)

0 - 40 °C

USB port

Yes

Mac operating systems supported

Mac OS X 10.10 Yosemite
Yes

Cables included

AC
LAN (RJ-45)

On/off switch

Yes

Internal memory

8 GB

AC input voltage

100 - 240 V

Power consumption (typical)

79.113 W

Windows operating systems supported

Windows 7
Windows 8
Windows 10
Windows 11

Processor model

C5125

Processor family

Intel Atom®

Processor frequency

2.8 GHz

Operating system version

h5.0.1

Operating system installed

QuTS hero

Ethernet LAN (RJ-45) ports

2

Internal memory type

DDR4

Processor cores

8

Flash memory

5000 MB

Operating relative humidity (H-H)

5 - 95%

LED indicators

Yes

Ethernet LAN data rates

10
100
1000 Mbit/s
2500 Mbit/s

Ethernet LAN

Yes

Product colour

Black

Supported file systems

FAT32
HFS+
NTFS
ZFS
exFAT
ext3
ext4

Security algorithms

AES
FIPS 140
HTTPS
SSH

Processor manufacturer

Intel

Processor cache

9 MB

Memory form factor

SO-DIMM

Processor threads

8

USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity

4

Linux operating systems supported

CentOS 7.0
Ubuntu 14.04
Yes

Number of screws

56

S.M.A.R.T. support

Yes

RAID support

Yes

Power consumption (sleep)

49.799 W

Server operating systems supported

Windows Server 2008 R2
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016
Windows Server 2019

Cooling type

Active

ECC supported by processor

Yes

Chassis type

Rack (2U)

Supported network protocols

IPv4, IPv6

Maximum RAM supported

64 GB

Number of fans

3 fan(s)

Quick installation guide

Yes

Fan diameter

6 cm

Power supply location

Built-in

Other operating systems supported

IBM AIX 7.1
Solaris 10

Thermal Design Power (TDP)

50 W

Supported storage drive interfaces

Serial ATA III, Serial ATA II

Wake-on-LAN ready

Yes

RAID levels

0
1
5
10
50
60
JBOD

Number of storage drives supported

8

Supported storage drive types

HDD & SSD

Buzzer

Yes

Number of processors installed

1

PCI Express x4 (Gen 3.x) slots

2

Storage drive sizes supported

2.5
3.5"

Device class

Home & Home Office

Power cables quantity

1

Storage drives installed

No

Installed storage drive type

No

Jumbo frames support

Yes

Management protocols

SNMP V2, V3

Fiber optic connector

MTP

Browser supported

Apple Safari (latest version) Google Chrome (latest version) Microsoft Edge (latest version) Mozilla Firefox (latest version)

Power supply unit (PSU) capacity

250 W

iSCSI support

Yes

USB copy function

Yes

Backup function

Yes

Reset button

Yes

Snapshot

Yes

Access Control List (ACL)

Yes

Hot-swap drive bays

Yes

Number of power supply units

1

Backup features

USB drive
iSCSI LUN

System log

Yes

Built-in FTP server

Yes

Number of M.2 (M & B) slots

2

Share folder

CIFS/SMB

Hot spare

Yes

Online RAID migration

Yes

Online RAID expansion

Yes

Dynamic DNS (DDNS)

Yes

DHCP server

Yes

Disk roaming

Yes

Fan voltage

12 V

RAID rebuild

Yes

Fibre Channel

Yes