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QNAP TS-251A User Manual

QNAP TS-251A
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section must be in a format that is publicly documented (and with an implementation
available to the public in source code form), and must require no special password or key
for unpacking, reading or copying.
7. Additional Terms.
Additional permissions” are terms that supplement the terms of this License by making
exceptions from one or more of its conditions. Additional permissions that are applicable to
the entire Program shall be treated as though they were included in this License, to the
extent that they are valid under applicable law. If additional permissions apply only to part
of the Program, that part may be used separately under those permissions, but the entire
Program remains governed by this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option remove any additional
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to require their own removal in certain cases when you modify the work.) You may place
additional permissions on material, added by you to a covered work, for which you have or
can give appropriate copyright permission.
Notwithstanding any other provision of this License, for material you add to a covered work,
you may (if authorized by the copyright holders of that material) supplement the terms of
this License with terms:
a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16
of this License; or
b) Requiring preservation of specified reasonable legal notices or author attributions in that
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QNAP TS-251A Specifications

General IconGeneral
Chassis typeTower
Cooling typeActive
Fan diameter70 mm
Number of fans1 fan(s)
Cable lock slotYes
Housing material-
Cable lock slot typeKensington
RAID levels0, 1, JBOD
Storage drive size2.5/3.5 \
Storage drive capacity- GB
Supported file systemsFAT32, HFS+, NTFS, ext3, ext4
Storage drive interfaceSerial ATA III
Storage drives installedNo
Supported storage drive typesHDD & SSD
Total installed storage capacity0 TB
Number of storage drives installed0
Number of storage drives supported2
SteppingD1
Tjunction90 °C
Processor codeSR2KN
Processor cache2 MB
Processor modelN3060
System bus rate5 GT/s
Processor familyIntel® Celeron®
Processor seriesIntel Celeron N3000 series
Processor socketBGA 1170
Processor codenameBraswell
Processor frequency1.6 GHz
Processor cache typeL2
Processor lithography14 nm
Processor manufacturerIntel
Processor package size25 x 27 mm
CPU configuration (max)1
PCI Express slots version2.0
Processor boost frequency2.48 GHz
Processor operating modes64-bit
PCI Express configurations1x2+2x1, 1x4, 2x2, 4x1
Thermal Design Power (TDP)6 W
Scenario Design Power (SDP)4 W
On-board graphics card modelIntel® HD Graphics 400
Maximum internal memory supported by processor8 GB
Memory slots2 x SO-DIMM
Internal memory4 GB
Internal memory typeDDR3L
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, and SMSC
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.
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity3
TypeNAS
Noise level18.3 dB
Device classHome & Home Office
Share folderWindows Server 2003, Windows Server 2003 R2, Windows Server 2003 x64, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 R2 x64, Windows Server 2008 x64, Windows Server 2012, Windows Server 2012 R2
Backup featuresCloud, iSCSI LUN
Browser supportedMicrosoft Internet Explorer 10+, Mozilla Firefox 8+, Apple Safari 4+, Google Chrome
Security algorithms256-bit AES, FIPS 140-2, HTTPS, SSH, SSL/TLS
Compatible memory cardsSD
Processor ARK ID91832
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)5 - 95 %
Cables includedAC, LAN (RJ-45)
Number of screws14
Power supply locationExternal
Operating system version4.2
Operating system installedQNAP Turbo System
Number of execution units12
Maximum number of PCI Express lanes4
Memory types supported by processorDDR3L-SDRAM
Memory channels supported by processorDual
Intel Identity Protection Technology version1.00
Intel Small Business Advantage (SBA) version0.00
On-board graphics card base frequency320 MHz
On-board graphics card DirectX version12.0
On-board graphics card burst frequency600 MHz
Weight and Dimensions IconWeight and Dimensions
Depth219 mm
Width102 mm
Height169 mm

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