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QNap TS-251+-2G NAS Tower with 2 slots for HDD/SSD and 2 Ethernet ports
File Servers / NAS

QNap TS-251+-2G NAS Tower with 2 slots for HDD/SSD and 2 Ethernet ports

Nas Qnap TS-251 Plus 2-Bay 2GB, with the capability for easy and fast file transfer.

Nas Qnap TS-251 Plus 2-Bay 2GB, with the capability for easy and fast file transfer.

See full description See full description
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Product report

Description

Description

Nas Qnap TS-251 Plus 2-Bay 2GB, with the capability for easy and fast file transfer.

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Main Specifications

Form Factor
Tower

Dimensions

Height
168.5 mm
Width
102 mm
Length
225 mm

Processor

Manufacturer
Intel
Model
Celeron
Cores
Quad Core
Frequency
2 GHz

RAM Memory

Size
2 GB
Type
DDR3

Storage

Hard Drive Slots
2 Bays
Supported Drives
HDD, SSD
Communication Protocol
SATA III (6 Gbit/s)
Raid
0, 1, JBOD
File System
EXT4
Extras
Backup Server, Cloud Server, FTP Server, File Server, Media Server, Print Server, Surveillance Station, VPN Server, Web Server
Hot Swapping
-

Hot Swapping

Allows the replacement of a faulty drive without shutting down the NAS. Essential for businesses and professionals who do not want to interrupt their network or applications even for a minute.

Additional Features

Connections
HDMI, USB 2.0, USB 3.0
Ethernet Ports
2 Port
Link Aggregation
-

Link Aggregation

Link Aggregation is a technique that allows the NAS to use two or more network (Ethernet) ports simultaneously as if they were one.

  • What it offers: It doubles (or multiplies) the data transfer speed and ensures that the connection will not be interrupted if one cable fails.

  • Why you need it: It is essential in environments where many users (e.g., in an office) request files at the same time, as it prevents network "bottlenecks."

  • Requirement: To function, it requires compatible network equipment (Managed Switch) that supports the same protocol.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (3)

Reviews

3.0
3
3.0
Review this product
  1. 2
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1
Review this product
  • Easy installation
  • Large number of functions/settings
  • Quiet
  • Response speed
  • Durability
  • Operational stability
  • Management software
  • Value for money
  • lvasilis00
    1
    2 out of 4 members found this review helpful
    lvasilis00

    Stay away...the Intel Celeron J1900 has an LPC clock degradation issue that is recognized by Intel itself. All NAS devices of this type die after a few years (like mine).

    Translated from Greek ·
    • Difficult installation
    • Small number of functions/settings
    • Noisy
    • Response speed
    • Durability
    • Operational stability
    • Management software
    • Value for money
    Did you find this review helpful?
  • Panos_Stavrakis
    5
    4 out of 4 members found this review helpful
    Panos_Stavrakis

    It is a very good purchase, I have had it for almost 3 years, it is incredibly fast without problems, but a bit expensive for 2 bays. I changed one RAM, I made it 4GB, it is even faster now

    Translated from Greek ·
    • Easy installation
    • Large number of functions/settings
    • Quiet
    • Durability
    • Operational stability
    • Management software
    • Response speed
    • Value for money
    Did you find this review helpful?
  • Guybrush_Threepwood
    5
    17 out of 17 members found this review helpful
    Guybrush_Threepwood

    This machine is a giant. If you calculate the discs as well, I would say that we start with an expensive choice, but in the end, I think it compensates you. One feature that makes it stand out is the direct connection to the TV via HDMI and using a graphical interface to use it as a media center, using applications like Kodi, Plex, YouTube, etc. Powerful operating system, plenty of mobile/tablet apps. Overall, I am very satisfied without having used many features. It is not an entry-level machine, although even with a little experience, you can set it up. It has a powerful processor and memory, and in general, it does what it promises as long as you know what you are asking for and invest a little time. I am very satisfied with it. If I had to make the choice again now, maybe I would go for a cheaper implementation, otherwise, I would buy it again.

    Translated from Greek ·
    • Easy installation
    • Large number of functions/settings
    • Quiet
    • Response speed
    • Durability
    • Operational stability
    • Management software
    • Value for money
    Did you find this review helpful?
  • lvasilis00
    1
    lvasilis00

    Stay away...the Intel Celeron J1900 has an LPC clock degradation issue that is recognized by Intel itself. All NAS devices of this type die after a few years (like mine).

    Translated from Greek ·
    2
  • Panos_Stavrakis
    5
    Panos_Stavrakis

    It is a very good purchase, I have had it for almost 3 years, it is incredibly fast without problems, but a bit expensive for 2 bays. I changed one RAM, I made it 4GB, it is even faster now

    Translated from Greek ·
    4
  • Guybrush_Threepwood
    5
    Guybrush_Threepwood

    This machine is a giant. If you calculate the discs as well, I would say that we start with an expensive choice, but in the end, I think it compensates you. One feature that makes it stand out is the direct connection to the TV via HDMI and using a graphical interface to use it as a media center, using applications like Kodi, Plex, YouTube, etc. Powerful operating system, plenty of mobile/tablet apps. Overall, I am very satisfied without having used many features. It is not an entry-level machine, although even with a little experience, you can set it up. It has a powerful processor and memory, and in general, it does what it promises as long as you know what you are asking for and invest a little time. I am very satisfied with it. If I had to make the choice again now, maybe I would go for a cheaper implementation, otherwise, I would buy it again.

    Translated from Greek ·
    17
  • See all

Description & Specifications

Nas Qnap TS-251 Plus 2-Bay 2GB, with the capability for easy and fast file transfer.

Manufacturer

Manufacturer Details

Warnings & Safety Information

Main Specifications

Form Factor
Tower

Dimensions

Height
168.5 mm
Width
102 mm
Length
225 mm

Processor

Manufacturer
Intel
Model
Celeron
Cores
Quad Core
Frequency
2 GHz

RAM Memory

Size
2 GB
Type
DDR3

Storage

Hard Drive Slots
2 Bays
Supported Drives
HDD, SSD
Communication Protocol
SATA III (6 Gbit/s)
Raid
0, 1, JBOD
File System
EXT4
Extras
Backup Server, Cloud Server, FTP Server, File Server, Media Server, Print Server, Surveillance Station, VPN Server, Web Server
Hot Swapping
-

Hot Swapping

Allows the replacement of a faulty drive without shutting down the NAS. Essential for businesses and professionals who do not want to interrupt their network or applications even for a minute.

Additional Features

Connections
HDMI, USB 2.0, USB 3.0
Ethernet Ports
2 Port
Link Aggregation
-

Link Aggregation

Link Aggregation is a technique that allows the NAS to use two or more network (Ethernet) ports simultaneously as if they were one.

  • What it offers: It doubles (or multiplies) the data transfer speed and ensures that the connection will not be interrupted if one cable fails.

  • Why you need it: It is essential in environments where many users (e.g., in an office) request files at the same time, as it prevents network "bottlenecks."

  • Requirement: To function, it requires compatible network equipment (Managed Switch) that supports the same protocol.

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (3)

3.0
3
3.0
Review this product
  1. 2
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1
Review this product
  • Easy installation
  • Large number of functions/settings
  • Quiet
  • Response speed
  • Durability
  • Operational stability
  • Management software
  • Value for money
  • lvasilis00
    1
    2 out of 4 members found this review helpful
    lvasilis00

    Stay away...the Intel Celeron J1900 has an LPC clock degradation issue that is recognized by Intel itself. All NAS devices of this type die after a few years (like mine).

    Translated from Greek ·
    • Difficult installation
    • Small number of functions/settings
    • Noisy
    • Response speed
    • Durability
    • Operational stability
    • Management software
    • Value for money
    Did you find this review helpful?
  • Panos_Stavrakis
    5
    4 out of 4 members found this review helpful
    Panos_Stavrakis

    It is a very good purchase, I have had it for almost 3 years, it is incredibly fast without problems, but a bit expensive for 2 bays. I changed one RAM, I made it 4GB, it is even faster now

    Translated from Greek ·
    • Easy installation
    • Large number of functions/settings
    • Quiet
    • Durability
    • Operational stability
    • Management software
    • Response speed
    • Value for money
    Did you find this review helpful?
  • Guybrush_Threepwood
    5
    17 out of 17 members found this review helpful
    Guybrush_Threepwood

    This machine is a giant. If you calculate the discs as well, I would say that we start with an expensive choice, but in the end, I think it compensates you. One feature that makes it stand out is the direct connection to the TV via HDMI and using a graphical interface to use it as a media center, using applications like Kodi, Plex, YouTube, etc. Powerful operating system, plenty of mobile/tablet apps. Overall, I am very satisfied without having used many features. It is not an entry-level machine, although even with a little experience, you can set it up. It has a powerful processor and memory, and in general, it does what it promises as long as you know what you are asking for and invest a little time. I am very satisfied with it. If I had to make the choice again now, maybe I would go for a cheaper implementation, otherwise, I would buy it again.

    Translated from Greek ·
    • Easy installation
    • Large number of functions/settings
    • Quiet
    • Response speed
    • Durability
    • Operational stability
    • Management software
    • Value for money
    Did you find this review helpful?
  • lvasilis00
    1
    lvasilis00

    Stay away...the Intel Celeron J1900 has an LPC clock degradation issue that is recognized by Intel itself. All NAS devices of this type die after a few years (like mine).

    Translated from Greek ·
    2
  • Panos_Stavrakis
    5
    Panos_Stavrakis

    It is a very good purchase, I have had it for almost 3 years, it is incredibly fast without problems, but a bit expensive for 2 bays. I changed one RAM, I made it 4GB, it is even faster now

    Translated from Greek ·
    4
  • Guybrush_Threepwood
    5
    Guybrush_Threepwood

    This machine is a giant. If you calculate the discs as well, I would say that we start with an expensive choice, but in the end, I think it compensates you. One feature that makes it stand out is the direct connection to the TV via HDMI and using a graphical interface to use it as a media center, using applications like Kodi, Plex, YouTube, etc. Powerful operating system, plenty of mobile/tablet apps. Overall, I am very satisfied without having used many features. It is not an entry-level machine, although even with a little experience, you can set it up. It has a powerful processor and memory, and in general, it does what it promises as long as you know what you are asking for and invest a little time. I am very satisfied with it. If I had to make the choice again now, maybe I would go for a cheaper implementation, otherwise, I would buy it again.

    Translated from Greek ·
    17
  • See all