QNAP TS-251+ manual

QNAP TS-251+
7.8 · 3
PDF manual
 · 91 pages
manualQNAP TS-251+


Hardware User Manual

© 2015. QNAP Systems, Inc. All Rights Reserved.

View the manual for the QNAP TS-251+ here, for free. This manual comes under the category Servers and has been rated by 3 people with an average of a 7.8. This manual is available in the following languages: English. Do you have a question about the QNAP TS-251+ or do you need help? Ask your question here

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Andrew • 1-12-2020No comments

Can the dashboard be reached by using windows explorer window and typing in the IP address of the unit on local network?

Can the dashboard be reached by using windows explorer window and typing in the IP address of the unit on local network?
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Sandra • 19-8-2021No comments

When I sometimes have to turn off electricity for the house, I notice that my QNAP NAS 251+ does not automatically switch itself back on when electricity is turned back on. I have to press the NAS power button. Unlike my routers, phone, alarm, fridge etc. It made me think, if I am not at home and there is a power cut, how can I make sure my NAS turns itself back on?

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Sergii • 13-1-20211 comment

is t-251+ x86 based

J Ergueta • 12-1-2023

How do I simply transfer a file to my MacAir? (MacOS 12.6) I have tried connecting the 251 via a USB cable and also a HDMI cable to my Anker dongle but it does not mount

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Number of questions: 3

Convenience in the palm of your hand with a remote control that makes controlling your display easier than ever.
With both DVI and HDMI ports this display is ready to connect for brilliant HD visuals over a smooth digital connection....
TS-251+ | TS-251+2XST4000VN003
User manual (PDF)
Security algorithms256-bit AES, FIPS 140-2, HTTPS, SSH
Management protocolsSNMP
Browser supportedApple Safari 7+, Google Chrome, Microsoft Internet Explorer 10+, Mozilla Firefox
Noise level15.4 dB
Web-based management
Reset button
On/off switch
S.M.A.R.T. support
Remotely operated
Universal Plug and Play (UPnP)
Device classHome & Home Office
Backup function
Backup featuresCloud, USB drive, iSCSI LUN
Backup button
Built-in iTunes server
Built-in FTP server
System log
Share folder512
Share folder access right management
Processor model-
Processor familyIntel® Celeron®
Processor cores4
Processor frequency2 GHz
Weight & dimensions
Weight1280 g
Package weight2320 g
Height169 mm
Width102 mm
Depth219 mm
Power consumption (typical)18.09 W
Power consumption (sleep)0.57 W
AC input voltage100 - 240 V
Power supply locationExternal
Fan voltage12 V
Power supply unit (PSU) capacity60 W
Power consumption (HDD standby)10.56 W
Flash memory512 MB
Memory slots2x SODIMM
Memory clock speed1600 MHz
Internal memory- GB
Maximum RAM supported8 GB
Internal memory typeDDR3L
Supported network protocolsCIFS/SMB, AFP v3.3, NFS v3, FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSC
Ethernet LAN
Wake-on-LAN ready
Link aggregation
Jumbo frames support
DHCP client
DHCP server
Ethernet LAN data rates10,100,1000 Mbit/s
iSCSI support
Dynamic DNS (DDNS)
Operational conditions
Operating relative humidity (H-H)5 - 95 %
Operating temperature (T-T)0 - 40 °C
Chassis typeTower
Cable lock slot
LED indicatorsHDD, LAN, Power, Status, USB
Product colourBlack
Number of fans1 fan(s)
Cooling typeActive
Fan diameter70 mm
Cable lock slot typeKensington
Mac compatibility
Operating system installedQNAP Turbo System
Operating system version4.3
Windows operating systems supportedWindows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64
Mac operating systems supportedMac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Linux operating systems supported
Server operating systems supportedWindows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016
RAID levels0, 1,JBOD
Supported file systemsFAT32, HFS+, NTFS, exFAT, ext3, ext4
RAID support
Storage drive size- "
Number of storage drives supported2
Storage drive sizes supported2.5, 3.5 "
Storage drives installed
Total installed storage capacity8 TB
Number of storage drives installed2
Installed storage drive typeHDD
Supported storage drive typesHDD & SSD
Hot-swap drive bays
Storage drive capacity4000 GB
Supported storage drive interfacesSerial ATA II, Serial ATA III
Online RAID migration
Online RAID expansion
Bad block scan
Packaging content
Remote control included
Cables includedAC, LAN (RJ-45)
External power adapter
Quick installation guide
Number of screws14
Ports & interfaces
USB 2.0 ports quantity2
Ethernet LAN (RJ-45) ports2
HDMI ports quantity1
Fiber ports quantity0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity2
USB port
Other features
Number of simultaneous users4096 user(s)
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