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QNAP TS-251D J4005 Ethernet LAN Tower Blue, White NAS
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(0808 189 1246)
Storage
Total installed storage capacity
8 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
Number of storage drives installed
2
Supported storage drive types
HDD & SSD
Number of storage drives supported
2
Storage drive interface
Serial ATA III
Storage drive capacity
4000 GB
Storage drive size
3.5"
Hot-swap drive bays
Yes
RAID support
Yes
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
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
USB 2.0 ports quantity
3
HDMI ports quantity
1
Ethernet LAN (RJ-45) ports
1
Hard drive
RAID support
Yes
RAID levels
0-1-JBOD
Graphics
On-board graphics adapter ID
0x3185
On-board graphics adapter dynamic frequency (max)
700 MHz
On-board graphics adapter DirectX version
12
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)
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
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
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
Linux operating systems supported
Yes
Web-based management
Yes
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
Cable lock slot
Yes
Access Control List (ACL)
Yes
Software
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
QNAP TS-251D J4005 Ethernet LAN Tower Blue, White NAS
| Length | 22.60 cm |
| Width | 10.50 cm |
| Height | 16.80 cm |
| Weight | 1.480000 kgs |
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