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QNAP TS-251+ User Manual

QNAP TS-251+
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contain the covered work, unless you entered into that arrangement, or that patent license
was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting any implied license or
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patent law.
12. No Surrender of Others' Freedom.
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you could satisfy both those terms and this License would be to refrain entirely from
conveying the Program.
13. Use with the GNU Affero General Public License.
Notwithstanding any other provision of this License, you have permission to link or combine
any covered work with a work licensed under version 3 of the GNU Affero General Public
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14. Revised Versions of this License.
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QNAP TS-251+ Specifications

General IconGeneral
TypeNAS
BuzzerYes
Noise level15.4 dB
Device classHome & Home Office
Share folder512
Backup featuresCloud, USB drive, iSCSI LUN
Browser supportedApple Safari 7+, Google Chrome, Microsoft Internet Explorer 10+, Mozilla Firefox
Security algorithms256-bit AES, FIPS 140-2, HTTPS, SSH
Processor cores4
Processor model-
Processor familyIntel® Celeron®
Processor frequency2 GHz
Fan voltage12 V
AC input voltage100 - 240 V
Power supply locationExternal
Power consumption (sleep)0.57 W
Power consumption (typical)18.09 W
Power consumption (HDD standby)10.56 W
Power supply unit (PSU) capacity60 W
Flash memory512 MB
Memory slots2x SODIMM
Internal memory- GB
Memory clock speed1600 MHz
Internal memory typeDDR3L
Maximum RAM supported8 GB
Wi-FiNo
Ethernet LAN data rates10, 100, 1000 Mbit/s
Supported network protocolsCIFS/SMB, AFP v3.3, NFS v3, FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, SMSC
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)5 - 95 %
Chassis typeTower
Cooling typeActive
Fan diameter70 mm
Product colorBlack
LED indicatorsHDD, LAN, Power, Status, USB
Number of fans1 fan(s)
Cable lock slot typeKensington
Operating system version4.3
Operating system installedQNAP Turbo System
Mac operating systems supportedMac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Server operating systems supportedWindows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016
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
RAID levels0, 1, JBOD
Storage drive size- \
Storage drive capacity4000 GB
Supported file systemsFAT32, HFS+, NTFS, exFAT, ext3, ext4
Installed storage drive typeHDD
Storage drive sizes supported2.5, 3.5 \
Supported storage drive typesHDD & SSD
Total installed storage capacity8 TB
Number of storage drives supported2
Supported storage drive interfacesSerial ATA II, Serial ATA III
Cables includedAC, LAN (RJ-45)
Number of screws14
Fiber ports quantity0
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Number of simultaneous users4096 user(s)
Weight and Dimensions IconWeight and Dimensions
Depth219 mm
Width102 mm
Height169 mm
Weight1280 g
Package weight2320 g

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