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QNAP TS-251B User Manual

QNAP TS-251B
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7. Notices
This chapter provides information about warranty, disclaimers, licensing, and federal regulations.
Limited Warranty
QNAP offers limited warranty service on our products. Your QNAP-branded hardware product is warranted
against defects in materials and workmanship for a period of one (1) year or more from the date printed on
the invoice. ("Warranty Period"). Please review your statutory rights at www.qnap.com/warranty, which may
be amended from time to time by QNAP in its discretion.
Disclaimer
Information in this document is provided in connection with products of QNAP Systems, Inc. (the "QNAP").
No license, express or implied, by estoppels or otherwise, to any intellectual property rights is granted by this
document. Except as provided in QNAP's terms and conditions of sale for such products, QNAP assumes no
liability whatsoever, and QNAP disclaims any express or implied warranty, relating to sale and/or use of
QNAP products including liability or warranties relating to fitness for a particular purpose, merchantability, or
infringement of any patent, copyright or other intellectual property right.
QNAP products are not intended for use in medical, life saving, life sustaining, critical control or safety
systems, or in nuclear facility applications.
In no event shall QNAP’s liability exceed the price paid for the product from direct, indirect, special,
incidental, or consequential damages resulting from the use of the product, its accompanying software, or its
documentation.QNAP makes no warranty or representation, expressed, implied, or statutory, with respect to
its products or the contents or use of this documentation and all accompanying software, and specifically
disclaims its quality, performance, merchantability, or fitness for any particular purpose. QNAP reserves the
right to revise or update its products, software, or documentation without obligation to notify any individual or
entity.
Back up the system periodically to avoid any potential data loss is recommended. QNAP disclaims any
responsibility of all sorts of data loss or recovery.
Should you return any components of the package of QNAP products such as NAS (Network Attached
Storage) for refund or maintenance, make sure they are carefully packed for shipping. Any form of damages
due to improper packaging will not be compensated.
All the features, functionality, and other product specifications are subject to change without prior notice or
obligation. Information contained herein is subject to change without notice.
Further, the ® or ™ symbols are not used in the text.
GNU Public License
Version 3, 29 June 2007
Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not
allowed.
Preamble
The GNU General Public License is a free, copy left license for software and other kinds of works.
The licenses for most software and other practical works are designed to take away your freedom to share
and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom
to share and change all versions of a program--to make sure it remains free software for all its users. We, the
TS-251B User Guide
Notices 45

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QNAP TS-251B Specifications

General IconGeneral
RAID levels0, 1, JBOD
RAID supportYes
Storage drive size- \
Storage drive capacity- GB
Supported file systemsFAT32, HFS+, NTFS, exFAT, ext3, ext4
Storage drive interfaceSerial ATA III
Storage drives installedNo
Storage drive sizes supported2.5, 3.5 \
Supported storage drive typesHDD & SSD
Total installed storage capacity0 TB
Number of storage drives installed0
Number of storage drives supported2
SteppingB1
Tjunction105 °C
Processor codeSR2Z8
Processor cache2 MB
System bus rate5 GT/s
Processor familyIntel® Celeron®
Processor socketBGA 1296
Processor codenameApollo Lake
Processor frequency2 GHz
Processor cache typeSmart Cache
Processor lithography14 nm
Processor manufacturerIntel
Processor package size24 x 31 mm
CPU configuration (max)1
PCI Express slots version2.0
Processor boost frequency2.5 GHz
Processor operating modes64-bit
PCI Express configurations1x2+2x1, 4x1
Thermal Design Power (TDP)10 W
On-board graphics card modelIntel® HD Graphics 500
Maximum internal memory supported by processor8 GB
Flash memory4096 MB
Internal memory2 GB
Internal memory typeDDR3L
Ethernet LAN data rates10, 100, 1000 Mbit/s
Supported network protocolsPPTP, L2TP/IPSec, OpenVPN
HDMI version1.4b
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.
Chassis typeTower
Cooling typeActive
Fan diameter70 mm
Product colorWhite
LED indicatorsHDD, LAN, Power, Status, USB
Number of fans1 fan(s)
Cable lock slot typeKensington
TypeNAS
Noise level17.3 dB
Device classHome & Home Office
Share folderCIFS/SMB
Backup featuresUSB drive
Browser supportedApple Safari 7 or later, Google Chrome, Microsoft Internet Explorer 10 or later, Mozilla Firefox
Security algorithms256-bit AES, FIPS 140-2, HTTPS, SSH, SSL/TLS
AC input voltage100 - 240 V
Power supply locationExternal
Power consumption (typical)15.25 W
Power consumption (HDD standby)8.08 W
Power supply unit (PSU) capacity65 W
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)5 - 95 %
Operating system version4.3.4
Operating system installedQNAP Turbo System
Mac operating systems supportedMac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac 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 2003 x64, Windows Server 2008 R2, Windows Server 2008 R2 x64, Windows Server 2012, Windows Server 2012 R2, Windows Server 2012 R2 x64, Windows Server 2012 x64, Windows Server 2016, Windows Server 2016 x64
Windows operating systems supportedWindows 10, Windows 7, Windows 8
Cables includedAC, LAN (RJ-45)
Number of execution units12
Maximum number of PCI Express lanes6
Memory types supported by processorDDR3L, LPDDR3-SDRAM, LPDDR4-SDRAM
Memory channels supported by processorDual
Intel Identity Protection Technology version1.00
Intel Small Business Advantage (SBA) version0.00
On-board graphics card base frequency250 MHz
On-board graphics card burst frequency700 MHz
Number of displays supported (on-board graphics)3
Processor ARK ID95597
Weight and Dimensions IconWeight and Dimensions
Depth226 mm
Width105 mm
Height168 mm
Weight1530 g

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