QNAP TS-251B User Manual

Method Description Requirements
Cloud installation If the NAS is connected to the internet,
you can do the following:
• Scan the QR code on the NAS.
• Log into your myQNAPcloud account.
• Use CloudLink to remotely access
your NAS.
• Complete the steps in the Smart
Installation Guide wizard.
For details, see Installing QTS Using the
Cloud Key.
• Computer or mobile device
• Network cable
• myQNAPcloud account
• CloudKey
Local installation If the NAS supports HDMI output, you can
do the following:
• Connect the NAS to the required
hardware.
• Complete the steps in the Smart
Installation Guide wizard.
For details, see Installing QTS Using an
HDMI Connection.
• Monitor
• HDMI cable
• USB keyboard or Remote
control (not available on all
models)
Installing QTS Using Qfinder Pro
Warning
Installing QTS deletes all data on the drives. Back up your data before proceeding.
1. Power on the NAS.
2. Connect the NAS to your local area network.
3. Run Qfinder Pro on a computer that is connected to the same local area network.
Note
To download Qfinder Pro, go to https://www.qnap.com/utilities.
4. Locate the NAS in the list and then double-click the name or IP address.
The Smart Installation Guide opens in the default web browser.
5. Click Start Smart Installation Guide.
6. Specify the following information.
• NAS name: Specify a name with 1 to 14 characters. The name supports letters (A to Z, a to z),
numbers (0 to 9), and hyphens (-), but cannot end with a hyphen.
• Password: Specify an administrator password with 1 to 64 characters. The password supports all
ASCII characters.
7. Click Next.
8. Specify the time zone, date, and time.
TS-251B User Guide
Installation and Configuration 34

QNAP TS-251B Specifications

General

RAID levels	0, 1, JBOD
RAID support	Yes
Storage drive size	- \
Storage drive capacity	- GB
Supported file systems	FAT32, HFS+, NTFS, exFAT, ext3, ext4
Storage drive interface	Serial ATA III
Storage drives installed	No
Storage drive sizes supported	2.5, 3.5 \
Supported storage drive types	HDD & SSD
Total installed storage capacity	0 TB
Number of storage drives installed	0
Number of storage drives supported	2
Stepping	B1
Tjunction	105 °C
Processor code	SR2Z8
Processor cache	2 MB
System bus rate	5 GT/s
Processor family	Intel® Celeron®
Processor socket	BGA 1296
Processor codename	Apollo Lake
Processor frequency	2 GHz
Processor cache type	Smart Cache
Processor lithography	14 nm
Processor manufacturer	Intel
Processor package size	24 x 31 mm
CPU configuration (max)	1
PCI Express slots version	2.0
Processor boost frequency	2.5 GHz
Processor operating modes	64-bit
PCI Express configurations	1x2+2x1, 4x1
Thermal Design Power (TDP)	10 W
On-board graphics card model	Intel® HD Graphics 500
Maximum internal memory supported by processor	8 GB
Flash memory	4096 MB
Internal memory	2 GB
Internal memory type	DDR3L
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Supported network protocols	PPTP, L2TP/IPSec, OpenVPN
HDMI version	1.4b
USB 2.0 ports quantity	USB 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 type	Tower
Cooling type	Active
Fan diameter	70 mm
Product color	White
LED indicators	HDD, LAN, Power, Status, USB
Number of fans	1 fan(s)
Cable lock slot type	Kensington
Type	NAS
Noise level	17.3 dB
Device class	Home & Home Office
Share folder	CIFS/SMB
Backup features	USB drive
Browser supported	Apple Safari 7 or later, Google Chrome, Microsoft Internet Explorer 10 or later, Mozilla Firefox
Security algorithms	256-bit AES, FIPS 140-2, HTTPS, SSH, SSL/TLS
AC input voltage	100 - 240 V
Power supply location	External
Power consumption (typical)	15.25 W
Power consumption (HDD standby)	8.08 W
Power supply unit (PSU) capacity	65 W
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	5 - 95 %
Operating system version	4.3.4
Operating system installed	QNAP Turbo System
Mac operating systems supported	Mac 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 supported	Windows 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 supported	Windows 10, Windows 7, Windows 8
Cables included	AC, LAN (RJ-45)
Number of execution units	12
Maximum number of PCI Express lanes	6
Memory types supported by processor	DDR3L, LPDDR3-SDRAM, LPDDR4-SDRAM
Memory channels supported by processor	Dual
Intel Identity Protection Technology version	1.00
Intel Small Business Advantage (SBA) version	0.00
On-board graphics card base frequency	250 MHz
On-board graphics card burst frequency	700 MHz
Number of displays supported (on-board graphics)	3
Processor ARK ID	95597

Weight and Dimensions

Depth	226 mm
Width	105 mm
Height	168 mm
Weight	1530 g