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QNAP TS-251+ Ethernet LAN Tower Black NAS
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(0808 189 1246)
Storage
Total installed storage capacity
20 TB
Online RAID migration
Yes
Online RAID expansion
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
Hot-swap drive bays
Yes
RAID support
Yes
RAID levels
0-1-JBOD
Storage drive sizes supported
2.5-3.5"
Processor
Processor frequency
2 GHz
Processor family
Intel® Celeron®
Processor cores
4
Memory
Internal memory type
DDR3L
Internal memory
2 GB
Memory clock speed
1600 MHz
Maximum RAM supported
8 GB
Memory slots
2x SODIMM
Flash memory
512 MB
Network
Link aggregation
Yes
Dynamic DNS (DDNS)
Yes
Ethernet LAN
Yes
Wi-Fi
No
Wake-on-LAN ready
Yes
Jumbo frames support
Yes
iSCSI support
Yes
DHCP server
Yes
DHCP client
Yes
Ports & interfaces
USB port
Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
2
USB 2.0 ports quantity
2
HDMI ports quantity
1
Ethernet LAN (RJ-45) ports
2
Hard drive
RAID support
Yes
RAID levels
0-1-JBOD
Design
Cooling type
Active
Fan diameter
7 cm
Cable lock slot type
Kensington
Product colour
Black
Number of fans
1 fan(s)
Chassis type
Tower
Cable lock slot
Yes
Technical details
Type
NAS
Backup function
Yes
Product colour
Black
Noise level
15.4 dB
Chassis type
Tower
Buzzer
Yes
Number of simultaneous users
4096 user(s)
Number of fans
1 fan(s)
Performance
Built-in iTunes server
Yes
Built-in FTP server
Yes
System log
Yes
Share folder access right management
Yes
Share folder
512
S.M.A.R.T. support
Yes
Mac compatibility
Yes
Remotely operated
Yes
Backup button
Yes
Universal Plug and Play (UPnP)
Yes
Type
NAS
Backup function
Yes
On/off switch
Yes
Linux operating systems supported
Yes
Web-based management
Yes
Reset button
Yes
Operating system version
4.3
Noise level
15.4 dB
Management protocols
SNMP
Buzzer
Yes
Snapshot
Yes
Cooling
Cooling type
Active
Fan diameter
7 cm
Fan voltage
12 V
Number of fans
1 fan(s)
Security
Cable lock slot type
Kensington
Cable lock slot
Yes
Software
Mac compatibility
Yes
Linux operating systems supported
Yes
Operating system version
4.3
Management features
On/off switch
Yes
Web-based management
Yes
Reset button
Yes
Management protocols
SNMP
Power
Power consumption (HDD standby)
10.56 W
Power supply location
External
Power supply unit (PSU) capacity
60 W
Fan voltage
12 V
AC input voltage
100 - 240 V
Power consumption (typical)
18.09 W
Power consumption (sleep)
0.57 W
External power adapter
Yes
Weight & dimensions
Width
102 mm
Depth
219 mm
Height
169 mm
Weight
1.28 kg
QNAP TS-251+ Ethernet LAN Tower Black NAS
| Length | 21.90 cm |
| Width | 10.20 cm |
| Height | 16.90 cm |
| Weight | 1.280000 kgs |
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