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QNAP TS-251D J4005 Ethernet LAN Tower Blue, White NAS
In Stock
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Storage
Total installed storage capacity
20 TB
Online RAID migration
Yes
Online RAID expansion
Yes
Disk roaming
Yes
Bad block scan
Yes
Storage drives installed
Yes
Installed storage drive type
HDD
Supported storage drive types
HDD & SSD
Number of storage drives supported
2
Storage drive interface
Serial ATA III
Storage drive size
3.5"
Hot-swap drive bays
Yes
RAID support
Yes
Supported file systems
FAT32-HFS+-NTFS-ext3-ext4
RAID levels
0-1-JBOD
Supported storage drive interfaces
Serial ATA III
Storage drive sizes supported
2.5-3.5"
RAID rebuild
Yes
Processor
Processor manufacturer
Intel
Tjunction
105 °C
Thermal Design Power (TDP)
10 W
Processor threads
2
Processor socket
BGA 1090
Processor package size
25 x 24 mm
Processor operating modes
64-bit
Processor lithography
14 nm
Processor codename
Gemini Lake
Processor cache
4 MB
Processor boost frequency
2.7 GHz
PCI Express slots version
2.0
PCI Express configurations
1x2-1x2+2x1-1x4-2x1-4x1
On-board graphics adapter model
Intel® UHD Graphics 600
CPU configuration (max)
1
Maximum internal memory supported by processor
8 GB
Conflict-Free processor
Yes
Processor ARK ID
128992
Processor frequency
2 GHz
Processor family
Intel® Celeron®
Processor model
J4005
Processor cores
2
Memory
Internal memory type
DDR4
Internal memory
4 GB
Memory clock speed
2400 MHz
Maximum RAM supported
8 GB
Memory slots
2
Flash memory
4096 MB
Memory form factor
SO-DIMM
Network
Load balancing system
Yes
Link aggregation
Yes
Dynamic DNS (DDNS)
Yes
Ethernet LAN
Yes
Ethernet LAN data rates
10-100-1000 Mbit/s
Wake-on-LAN ready
Yes
Jumbo frames support
Yes
iSCSI support
Yes
DHCP server
Yes
DHCP client
Yes
WLAN adapter supported
Yes
Ports & interfaces
USB port
Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
2
HDMI version
2.0
USB 2.0 ports quantity
3
HDMI ports quantity
1
Ethernet LAN (RJ-45) ports
1
Hard drive
RAID support
Yes
Supported file systems
FAT32-HFS+-NTFS-ext3-ext4
RAID levels
0-1-JBOD
Graphics
On-board graphics adapter model
Intel® UHD Graphics 600
On-board graphics adapter ID
0x3185
On-board graphics adapter dynamic frequency (max)
700 MHz
On-board graphics adapter DirectX version
12.0
On-board graphics adapter burst frequency
700 MHz
On-board graphics adapter base frequency
250 MHz
Maximum on-board graphics adapter memory
8 GB
Number of displays supported (on-board graphics)
3
Design
Cooling type
Active
Fan diameter
7 cm
Cable lock slot type
Kensington
Product colour
Blue- White
Number of fans
1 fan(s)
LED indicators
HDD- LAN- Power- Status- USB
Chassis type
Tower
Cable lock slot
Yes
Technical details
Type
NAS
Device class
Home & Home Office
Backup function
Yes
Backup features
Cloud- iSCSI LUN
Product colour
Blue- White
Number of users
4096 user(s)
Noise level
16.7 dB
LED indicators
HDD- LAN- Power- Status- USB
Chassis type
Tower
Buzzer
Yes
Number of fans
1 fan(s)
Performance
Built-in FTP server
Yes
System log
Yes
Share folder access right management
Yes
Share folder
512
S.M.A.R.T. support
Yes
Hot spare
Yes
Browser supported
Apple Safari 7+- Google Chrome- Microsoft Internet Explorer 10+- Mozilla Firefox
Remotely operated
Yes
Backup button
Yes
Universal Plug and Play (UPnP)
Yes
Built-in BitTorrent client
Yes
Type
NAS
Device class
Home & Home Office
Backup function
Yes
Backup features
Cloud- iSCSI LUN
On/off switch
Yes
Windows operating systems supported
Windows 10-Windows 10 Education-Windows 10 Education x64-Windows 10 Enterprise-Windows 10 Enterprise x64-Windows 10 Home-Windows 10 Home x64-Windows 10 Pro-Windows 10 Pro x64-Windows 10 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
Server operating systems supported
Windows Server 2003-Windows Server 2008 R2-Windows Server 2012-Windows Server 2012 R2-Windows Server 2016-Windows Server 2019
Mac operating systems supported
Mac OS X 10.7 Lion-Mac OS X 10.8 Mountain Lion-Mac OS X 10.9 Mavericks
Linux operating systems supported
Yes
Web-based management
Yes
Security algorithms
256-bit AES-FIPS 140-2-HTTPS-SSH
Reset button
Yes
Operating system version
4.4.1
Operating system installed
QNAP Turbo System
Number of users
4096 user(s)
Noise level
16.7 dB
Management protocols
SNMP
Buzzer
Yes
Access Control List (ACL)
Yes
Third-party support
Yes
Snapshot
Yes
USB copy function
Yes
Cooling
Cooling type
Active
Fan diameter
7 cm
Number of fans
1 fan(s)
Security
Cable lock slot type
Kensington
Security algorithms
256-bit AES-FIPS 140-2-HTTPS-SSH
Cable lock slot
Yes
Access Control List (ACL)
Yes
Software
Windows operating systems supported
Windows 10-Windows 10 Education-Windows 10 Education x64-Windows 10 Enterprise-Windows 10 Enterprise x64-Windows 10 Home-Windows 10 Home x64-Windows 10 Pro-Windows 10 Pro x64-Windows 10 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
Server operating systems supported
Windows Server 2003-Windows Server 2008 R2-Windows Server 2012-Windows Server 2012 R2-Windows Server 2016-Windows Server 2019
Mac operating systems supported
Mac OS X 10.7 Lion-Mac OS X 10.8 Mountain Lion-Mac OS X 10.9 Mavericks
Linux operating systems supported
Yes
Operating system version
4.4.1
Operating system installed
QNAP Turbo System
Management features
On/off switch
Yes
Web-based management
Yes
Reset button
Yes
Management protocols
SNMP
Power
Power supply location
External
Power supply unit (PSU) capacity
65 W
AC input voltage
100 - 240 V
Power consumption (typical)
15.25 W
Power consumption (sleep)
8.08 W
External power adapter
Yes
Weight & dimensions
Width
105 mm
Depth
226 mm
Height
168 mm
Weight
1.48 kg
Package weight
2.58 kg
Packaging content
Number of screws
14
External power adapter
Yes
Cables included
AC- LAN (RJ-45)
Processor special features
UART
Yes
Thermal Monitoring Technologies
Yes
Number of execution units
12
Maximum number of PCI Express lanes
6
Intel® Turbo Boost Technology
No
Intel® Smart Response Technology
No
Intel® Secure Key
Yes
Intel® Quick Sync Video Technology
Yes
Intel® OS Guard
Yes
Intel® Identity Protection Technology (Intel® IPT)
Yes
Intel® Hyper Threading Technology (Intel® HT Technology)
No
Intel® Anti-Theft Technology (Intel® AT)
No
Intel® AES New Instructions (Intel® AES-NI)
Yes
Intel VT-x with Extended Page Tables (EPT)
Yes
Intel Virtualization Technology for Directed I/O (VT-d)
Yes
Intel Virtualization Technology (VT-x)
Yes
Intel Smart Response Technology version
0.00
Intel Secure Key Technology version
1.00
Intel Identity Protection Technology version
1.00
Intel Enhanced Halt State
Yes
Intel 64
Yes
Idle States
Yes
Execute Disable Bit
Yes
Enhanced Intel SpeedStep Technology
Yes
Embedded options available
No
Memory types supported by processor
DDR4-SDRAM-LPDDR4-SDRAM
System requirements
Windows operating systems supported
Windows 10-Windows 10 Education-Windows 10 Education x64-Windows 10 Enterprise-Windows 10 Enterprise x64-Windows 10 Home-Windows 10 Home x64-Windows 10 Pro-Windows 10 Pro x64-Windows 10 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
Server operating systems supported
Windows Server 2003-Windows Server 2008 R2-Windows Server 2012-Windows Server 2012 R2-Windows Server 2016-Windows Server 2019
Mac operating systems supported
Mac OS X 10.7 Lion-Mac OS X 10.8 Mountain Lion-Mac OS X 10.9 Mavericks
Linux operating systems supported
Yes
Operational conditions
Operating temperature (T-T)
0 - 40 °C
Operating relative humidity (H-H)
5 - 95%
Packaging data
Package weight
2.58 kg
Cables included
AC- LAN (RJ-45)
Other features
Processor ARK ID
128992
QNAP TS-251D J4005 Ethernet LAN Tower Blue, White NAS
| Length | 22.60 in |
| Width | 10.50 in |
| Height | 16.80 in |
| Weight | 1.480000 lbs |
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