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Qnap
Desktop NAS
TS-251B-2G
2-Bay RAID (2GB RAM) + PCIe


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Quick code68056


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6Gb/s to Gigabit Ethernet (1,000 Mbit/s)
2GB RAM
Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz)
2yr Warranty
Description
TS-251B
First home/SOHO Intel dual-core NAS with a PCIe slot for extending NAS functionality

The TS-251B combines secure data storage and multimedia entertainment into one device. Featuring a PCIe slot, the TS-251B is QNAP’s first home/SOHO NAS that allows you to flexibly extend its functionality and potential applications. You can install a QNAP QM2 card to provide M.2 SSD caching/10GbE connectivity and use with Qtier auto-tiering storage to enhance overall system performance; or install a wireless network card (such as the QNAP QWA-AC2600) to turn the TS-251B into a wireless access point and to wirelessly stream your multimedia throughout your home. The TS-251B supports dual-channel H.264 hardware decoding and transcoding, allowing you to enjoy watching NAS media files smoothly across various devices. The PCIe port supports installing a 10GbE network card, a QM2 dual-port M.2 SSD/10GbE card, a USB 3.1 Gen 2 (10Gbps) card, or a wireless network card. 4K media playback and online transcoding; cross-device multimedia viewing via HDMI output or streaming applications. Snapshots fully record the system status and data. If files are accidentally deleted or modified, you can quickly restore the previously-recorded data. Hybrid Backup Sync consolidates backup and sync tasks into a single app, providing multiple layers of data protection. Remotely access the apps and files on your TS-251B via myQNAPcloud and easily manage and share files. Supports containerized applications and hosting virtual machines with various operating systems.
TS-251B-2G - Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz) with 2GB RAM (1 x 2GB)
TS-251B-4G - Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz) with 4GB RAM (1 x 4GB)

Intel® Celeron® J3355 dual-core processor and AES-NI hardware encryption
Powered by a 14nm Intel® Celeron® J3355 dual-core 2.0GHz processor (burst up to 2.5 GHz), 2GB/4GB DDR3L RAM (up to 8GB), a single Gigabit LAN port, and supporting SATA 6Gb/s hard drives, the TS-251B provides dependable performance of up to 672 MB/s read/write speeds. The TS-251B features Intel® AES-NI hardware-accelerated encryption for both full NAS volumes and shared folders, boosting system performance while ensuring the security of sensitive data stored in the TS-251B.

Extend NAS functionality with the PCIe slot
With a PCIe expansion slot, the TS-251B provides flexibility in extending NAS functionality and potential applications. Install a QNAP QM2 card to provide M.2 SSD caching/10GbE connectivity and use with Qtier tiered storage for optimal system performance; use the TS-251B as a wireless access point by installing a compatible wireless network card (such as the QNAP QWA-AC2600) to create a wireless media streaming environment; or boost the USB connectivity of the TS-251B by installing a USB 3.1 Gen 2 (10Gbps) card.

Upgrade your network to 10GbE with QNAP's fast and affordable 10GbE Switch
QNAP 10GbE/NBASE-T™ unmanaged switches allow you to instantly upgrade your network environment at a cost-effective price. With a 10GbE network you can enjoy blazing-fast transfer speeds, empower bandwidth-demanding tasks like virtualization, and enable simultaneous real-time access to large NAS-based files using multiple workstations (ideal for video editing and multimedia). QNAP also provides a 10GbE PCIe network expansion card for the TS-251B and Windows®/Linux® PCs to take advantage of high-speed LAN environments.

Real-time 4K video transcoding
Featuring advanced Intel® HD Graphics, the TS-251B supports dual-channel 4K H.264 hardware decoding and real-time transcoding, allowing you to convert videos to universal file formats that can be smoothly played across various devices*. You can also watch high-quality 4K@30FPS media files on a HDTV using the HDMI output or use with Plex® Media Server to stream media files to mobiles devices and media streaming devices (including DLNA®, Roku®, Apple TV®, Amazon Fire TV® and Chromecast™). The QNAP RM-IR004 remote control (sold separately) can be configured using QButton to customize the actions of individual buttons, providing a more convenient NAS experience.
*The TS-251B’s hardware provides H.264 hardware decoding, encoding and transcoding capabilities. However, playback quality may vary due to factors including playback software, file formats, system usage, and available bandwidth.

Multiple ways to enjoy your multimedia
QNAP provides a wide range of multimedia applications for you to easily enjoy photos, music, and videos. Cinema28 allows for single-interface management of all your media files and can stream files to every connected device throughout your home. QVHelper allows users to stream media files or music playlists from a QNAP NAS to VLC player. Qmedia allows music, photos and videos to be effortlessly streamed to Android TVs or set-top boxes. Video HD is a free KODI add-on that combines KODI's streaming and video decoding capabilities and fully supports Video Station's features.
Protect important data with snapshots
Snapshots help protect your data by fully recording the NAS system state and metadata. If files are accidentally deleted or modified or the system is afflicted by ransomware, you can use snapshots to quickly restore files to a previously-recorded state. QNAP snapshots are block-based and only record the changed data. Not only does this save storage space but also reduces the time required to back up and restore data. The TS-251B supports up to 1,024 snapshots per NAS and up to 256 snapshots per volume or LUN.

Automate everyday tasks with IFTTT Agent
QNAP IFTTT Agent integrates the popular web automation service IFTTT (If This Then That), allowing you to create a near-unlimited number of automated workflows. Simply connect your IFTTT account with your TS-251B and set triggers and actions. For example, if you set a trigger as “Any new photo on the phone” and the action as "Upload the photo to QNAP NAS," then all the photos taken using your phone will be automatically uploaded to TS-251B.

Multiply your productivity
The app-driven QTS operating system provides solutions for simplifying file backup, management, search, and more. With File Station you can view and manage your files from NAS and multiple storage devices; the OCR Converter allows you to extract text from images; Qfiling helps automate file organization, and Qsirch helps quickly find files.

Centralized File Management
Use File Station to directly access files on USB devices - including optical disc drives. Files from different devices can be easily viewed and managed on a single interface.

File Digitization
OCR Converter extracts text from images, helping to boost productivity and making it easier to find files.

Smart Filing
Qfiling automates file organization. Files are automatically archived into folders based on your settings.

Full-text Search
Qsirch quickly finds images, music, videos, documents, emails, and other files.

Multi-point file backup, access and sync
The TS-251B centrally stores data and files, and supports SMB/CIFS, AFP and NFS protocols for file sharing across Windows®, Mac®, and Linux®/UNIX® devices. Coupled with Qsync (a utility that turns a QNAP NAS into a safe, high-capacity data center for file synchronization) any file uploaded to the TS-251B will be made available for all linked devices, such as computers, laptops and mobile devices. Hybrid Backup Sync can help you easily backup or synchronize data on the TS-251B to other QNAP NAS, remote servers, or cloud storage for easy disaster recovery.

QVR Pro safeguards your environment
QNAP’s QVR Pro surveillance solution allows you to arrange a dedicated, independent storage space for surveillance data on TS-251B and leverage the advantages of scalable storage. With QVR Pro, camera management, storage space allocation, camera live view, and playback is greatly simplified. You can also use USB webcams as network cameras with the QUSBCam2 app, and remotely monitor your surveillance feeds at any time with QVR Pro Client’s companion mobile app.

NAS as a Multi-OS Platform
Virtualization Station and Container Station provide comprehensive solutions for creating virtualized environments to improve business IT infrastructure, workflows, and productivity.

Virtualization Station
Virtualization Station allows you to run multiple Windows®, Linux®, UNIX® and Android™ virtual machines on the TS-251B. You can use Virtual Network Computing (VNC) through a browser to operate the virtual machines. Virtualization Station is ideal for organizations to run multiple applications on a single NAS.

Container Station
Container Station integrates LXC and Docker® lightweight virtualization technologies. You can download apps from the built-in Docker Hub® to easily import/export container apps and manage access controls, enjoying the benefits of easy installation, transferability and high-efficiency.

Flexible and economical storage expansion
You need an easy solution to increase storage capacity when running out of space. QNAP provides several ways to expand your NAS storage as needed to accommodate data and business growth.

Upgrade RAID Capacity
Hot swap lower-capacity drives with larger-capacity drives so that your QNAP NAS can grow with your business.

VJBOD
Use VJBOD (Virtual JBOD) to expand your storage capacity by using the unused storage of other QNAP NAS. Up to 8 QNAP NAS can be mounted as local disks on the TS-251B.

Attach Expansion Enclosures
Connect two 2-bay TR-002 or 4-bay TR-004 USB hardware RAID external enclosures* and use the Storage & Snapshots Manager to easily handle NAS capacity expansion.
*TR-002 and TR-004 will be available soon. CPU Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz)
Architecture: 64-bit x86 Graphics Intel® HD Graphics 500 Encryption Acceleration  (AES-NI) System Memory 2 GB DDR3L (1 x 2 GB)
or
4 GB DDR3L (1 x 4 GB) Maximum Memory 8 GB (2 x 4 GB) Memory Slot 2 x SODIMM DDR3L up to 1866, with dual-channel support Flash Memory 4GB eMMC Drive Bay 2 x 3.5" SATA 6 Gbps HDD Drive Compatibility • 3.5" SATA 6Gb/s HDD
• 2.5" SATA 6Gb/s HDD
• 2.5" SATA 6Gb/s SSD SSD Cache Acceleration Support 3.5" drive bay:1 to 2 Gigabit Ethernet Port 1 x RJ45 USB Port 2 x USB 3.0, 3 x USB 2.0 USB One Touch Copy Front:USB 3.0 Type-A PCIe Slot 1 PCIe 2.0 x2 slot HDMI Output 1 x HDMI v1.4b (up to 3840 x 2160 resolution at 30 Hz) IR sensor , supporting QNAP RM-IR004 remote control (optional purchase) Audio 1 x speaker, 2 x MIC Input
1 x 3.5 mm line-out jack
Alarm buzzer
Note: You cannot use the speakers and the line-out jack simultaneously. LED Indicators Status/power、LAN、USB、HDD 1 - 2 Buttons Power, Reset, USB One-touch-copy System Warning Alarm buzzer and voice prompts Form Factor Tower Dimensions (H x W x D) 168 x 105 x 226 mm ( 6.61 x 4.13 x 8.90 inch) Net Weight 1.53 kg (3.37 lbs) Power Consumption (W) HDD standby:8.08 W
In operation:15.25 W
(with 2 x 1TB HDDs installed) Sound Level Sound pressure (LpAm): 17.3 dB(A) Power Supply Unit 65W AC adapter, 100-240V Fan 1 x 7 cm Operating Temperature & Relative Humidity 0 ~ 40˚C ( 32˚F ~ 104˚F ), 5 ~ 95% RH non-condensing, wet bulb: 27˚C (80.6˚F) Other Interfaces Kensington security slot Note: Use only QNAP memory modules to maintain system performance and stability. For NAS devices with more than one memory slot, use QNAP modules with identical specifications. Warning: Using unsupported modules may degrade performance, cause errors, or prevent the operating system from starting. 
* Sound Level Test Environment: Refer to ISO 7779; Maximum HDD loaded; Bystander Position; Average data from 1 meter in front of operating NAS.
Designs and specifications are subject to change without notice.  
Specifications
Specifications

General

Stock code IBQ-251B-2G
Brand Qnap
Series Desktop NAS
Model TS-251B-2G
Type 2-Bay RAID (2GB RAM) + PCIe
ROHS Y
Date added 29/05/2018

TS-251B-2G Spec Information

Form Factor / Drive Height 168x105x226mm
Platter size 3.5"
Platter (alternate) 2.5"
RAM/Cache 2GB
Guarantee 2yr
Processor Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz)
CPU Mark (cpubenchmark.net) 1313
Total Drives 2
RAID 0:1:JBOD:
RAID Levels Single Disk, JBOD, RAID 0, 1

TS-251B-2G Spec Connections

sub- connectionI/EQuantity
LAN1GbE RJ45External1
SATASATA 7-pin Discrete with PowerInternal2
PCIePCIe v2 x2Internal1
USB3USB3 type A (host)External2
USB2USB2 type A (host)External3

Software

TS-251B-2G Speed

Speed/RPM 6Gb/s to Gigabit Ethernet (1,000 Mbit/s)

Physical

Colour White
Weight (kg) 2.7kg
Weight (bare) 1.53kg
External Length (mm) 390cm
External Width (mm) 320cm
External Height (mm) 300cm
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Stock codeIBQ-251B-2G
Quick code68056
Choose electric outlet for United States TS-251B-2G with UK power plug TS-251B-2G with EURO power plug TS-251B-2G with US American power plug TS-251B-2G with AU Australian power plug
Your local power plug included



Qnap
Desktop NAS
TS-251B-2G
2-Bay RAID (2GB RAM) + PCIe



TS-251B-2G review star 1TS-251B-2G review star 2TS-251B-2G review star 3TS-251B-2G review star 4TS-251B-2G review star 5 5* from 1 Review

RAM 2GB4GB

qtier NASHDMI supportpcie-expansiondlna supportplex supportultra hd 4k supportintel-inside






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£251.00
£301.20
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Description

Qnap Desktop NAS TS-251B-2G 2-Bay RAID (2GB RAM) + PCIe


spantv reviewOur Review:

8.5

OVERALL

DESIGN rating score 8.00

FEATURES rating score 9.00

PERFORMANCE rating score 8.00

VALUE FOR MONEY
rating score 9.00
  PROS
designThe design of the new QNAP TS-251B may seem awfully familiar and that is because it is the same shape and materials as the TS-253Be. What makes it stand out is that the white and silver textured design. I genuinely love the look of this device. It sits really well in a Mac environment and the compact nature of the chassis means it will fit in some remarkably discreet areas. Additionally, the chassis is designed with lower noise and better air pass through in mind. Noise levels were rated at 17.3 db(a) and temperatures were nice and low, even when usage was high.
featuresFor a NAS arriving at such an impressively low price point, the amount of hardware on offer is remarkably impressive. The QNAP TS-251B arrives with a dual-core Intel J3355 CPU, upto 8GB of memory, an HDMI port and a PCIe slot. This is staggering for just over £240+ ex.VAT and means you can almost use the FULL extent of the QTS QNAP Operating system. It supports Surveillance of 20-25 cameras via QVR Pro and Surveillance station, a Plex Media Server, lite virtual machine use, linux container and desktop use with container station/linux station - This is already several times more than most NAS at this price tag can do. Alongside home and business use, this 2 bay really goes give ALOT of bang for your buck!
performanceBecause of the combination of PCIe upgrade and Intel CPU, this device gives both high results for use right-out-the-box and if you want to upgrade to 10Gbe for just another £90 ex.VAT. Right now, the QNAP TS-251B and 2x QNAP QXG-10G1T 10Gbe upgrade cards arrive at around £440 ex.vat altogether - that is a fantastically low price for fantastic live file editing over 10gBE. This will be especially attractive to photo and video editors, as well as content creators of all kinds. More over, in terms of multimedia and backups, the TS-251B arrives with excellent hardware for multiple simultaneous backups and transcoding of media files at 1080P and 4k.
valueI genuinely struggle to complain about just how much hardware and software ability you get in the TS-251B. I can name 10+ other NAS server devices that cost twice this device, whilst giving half the ability. Add to this the fantastic 10-gigabit ethernet potential and you are looking at potentially the best NAS of 2018.

  CONS
designThe plastic chassis (metal inside) might put some hardcore IT users off and the white chassis may get dirty over time (it is no accident that black and grey are the most commonly used colours in technology).
featuresAs much as the QNAP TS-251B is ableto do, the CPU being a dual core and the base unit arriving with 2GB means that it will not multitask as well as more powerful units like the TS253Be or DS718+. Do consider the extent to which you will use the device before buying.
performanceOnce again, the TS-251B will do 2-3 things at once very well indeed and the 10Gbe upgrade option is a great plus, but it will not multitask anywhere near as well as a quad-core CPU.
valueLike most QNAP NAS, there is definitely a 60/40 design in favour of hardware over software and if you plan on using 3rd party software (plex, emby, windows server, apple time machine, windows explorer, Kodi, etc) then you will be happy. But if you plan on using the 1st party QNAP Apps, you may need to invest a little higher in the TS-253Be.

Qnap TS-251B-2G logo

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2A warranty 2A Warranty available Qnap Warranty LIC-NAS-EXTW-GREEN-3Y-EI 2yr to 5yr, Green, Desktop 2A READ MORE


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Qnap TS251B2G Key features


6Gb/s to Gigabit Ethernet (1,000 Mbit/s)
2GB RAM
Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz)
2yr Warranty


TS-251B
First home/SOHO Intel dual-core NAS with a PCIe slot for extending NAS functionality

The TS-251B combines secure data storage and multimedia entertainment into one device. Featuring a PCIe slot, the TS-251B is QNAP’s first home/SOHO NAS that allows you to flexibly extend its functionality and potential applications. You can install a QNAP QM2 card to provide M.2 SSD caching/10GbE connectivity and use with Qtier auto-tiering storage to enhance overall system performance; or install a wireless network card (such as the QNAP QWA-AC2600) to turn the TS-251B into a wireless access point and to wirelessly stream your multimedia throughout your home. The TS-251B supports dual-channel H.264 hardware decoding and transcoding, allowing you to enjoy watching NAS media files smoothly across various devices.

  • The PCIe port supports installing a 10GbE network card, a QM2 dual-port M.2 SSD/10GbE card, a USB 3.1 Gen 2 (10Gbps) card, or a wireless network card.
  • 4K media playback and online transcoding; cross-device multimedia viewing via HDMI output or streaming applications.
  • Snapshots fully record the system status and data. If files are accidentally deleted or modified, you can quickly restore the previously-recorded data.
  • Hybrid Backup Sync consolidates backup and sync tasks into a single app, providing multiple layers of data protection.
  • Remotely access the apps and files on your TS-251B via myQNAPcloud and easily manage and share files.
  • Supports containerized applications and hosting virtual machines with various operating systems.


TS-251B-2G - Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz) with 2GB RAM (1 x 2GB)
TS-251B-4G - Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz) with 4GB RAM (1 x 4GB)

Intel® Celeron® J3355 dual-core processor and AES-NI hardware encryption
Powered by a 14nm Intel® Celeron® J3355 dual-core 2.0GHz processor (burst up to 2.5 GHz), 2GB/4GB DDR3L RAM (up to 8GB), a single Gigabit LAN port, and supporting SATA 6Gb/s hard drives, the TS-251B provides dependable performance of up to 672 MB/s read/write speeds. The TS-251B features Intel® AES-NI hardware-accelerated encryption for both full NAS volumes and shared folders, boosting system performance while ensuring the security of sensitive data stored in the TS-251B.

Extend NAS functionality with the PCIe slot
With a PCIe expansion slot, the TS-251B provides flexibility in extending NAS functionality and potential applications. Install a QNAP QM2 card to provide M.2 SSD caching/10GbE connectivity and use with Qtier tiered storage for optimal system performance; use the TS-251B as a wireless access point by installing a compatible wireless network card (such as the QNAP QWA-AC2600) to create a wireless media streaming environment; or boost the USB connectivity of the TS-251B by installing a USB 3.1 Gen 2 (10Gbps) card.

Upgrade your network to 10GbE with QNAP's fast and affordable 10GbE Switch
QNAP 10GbE/NBASE-T™ unmanaged switches allow you to instantly upgrade your network environment at a cost-effective price. With a 10GbE network you can enjoy blazing-fast transfer speeds, empower bandwidth-demanding tasks like virtualization, and enable simultaneous real-time access to large NAS-based files using multiple workstations (ideal for video editing and multimedia). QNAP also provides a 10GbE PCIe network expansion card for the TS-251B and Windows®/Linux® PCs to take advantage of high-speed LAN environments.

Real-time 4K video transcoding
Featuring advanced Intel® HD Graphics, the TS-251B supports dual-channel 4K H.264 hardware decoding and real-time transcoding, allowing you to convert videos to universal file formats that can be smoothly played across various devices*. You can also watch high-quality 4K@30FPS media files on a HDTV using the HDMI output or use with Plex® Media Server to stream media files to mobiles devices and media streaming devices (including DLNA®, Roku®, Apple TV®, Amazon Fire TV® and Chromecast™). The QNAP RM-IR004 remote control (sold separately) can be configured using QButton to customize the actions of individual buttons, providing a more convenient NAS experience.
*The TS-251B’s hardware provides H.264 hardware decoding, encoding and transcoding capabilities. However, playback quality may vary due to factors including playback software, file formats, system usage, and available bandwidth.

Multiple ways to enjoy your multimedia
QNAP provides a wide range of multimedia applications for you to easily enjoy photos, music, and videos.

  • Cinema28 allows for single-interface management of all your media files and can stream files to every connected device throughout your home.
  • QVHelper allows users to stream media files or music playlists from a QNAP NAS to VLC player.
  • Qmedia allows music, photos and videos to be effortlessly streamed to Android TVs or set-top boxes.
  • Video HD is a free KODI add-on that combines KODI's streaming and video decoding capabilities and fully supports Video Station's features.


Protect important data with snapshots
Snapshots help protect your data by fully recording the NAS system state and metadata. If files are accidentally deleted or modified or the system is afflicted by ransomware, you can use snapshots to quickly restore files to a previously-recorded state. QNAP snapshots are block-based and only record the changed data. Not only does this save storage space but also reduces the time required to back up and restore data. The TS-251B supports up to 1,024 snapshots per NAS and up to 256 snapshots per volume or LUN.

Automate everyday tasks with IFTTT Agent
QNAP IFTTT Agent integrates the popular web automation service IFTTT (If This Then That), allowing you to create a near-unlimited number of automated workflows. Simply connect your IFTTT account with your TS-251B and set triggers and actions. For example, if you set a trigger as “Any new photo on the phone” and the action as "Upload the photo to QNAP NAS," then all the photos taken using your phone will be automatically uploaded to TS-251B.

Multiply your productivity
The app-driven QTS operating system provides solutions for simplifying file backup, management, search, and more. With File Station you can view and manage your files from NAS and multiple storage devices; the OCR Converter allows you to extract text from images; Qfiling helps automate file organization, and Qsirch helps quickly find files.

Centralized File Management
Use File Station to directly access files on USB devices - including optical disc drives. Files from different devices can be easily viewed and managed on a single interface.

File Digitization
OCR Converter extracts text from images, helping to boost productivity and making it easier to find files.

Smart Filing
Qfiling automates file organization. Files are automatically archived into folders based on your settings.

Full-text Search
Qsirch quickly finds images, music, videos, documents, emails, and other files.

Multi-point file backup, access and sync
The TS-251B centrally stores data and files, and supports SMB/CIFS, AFP and NFS protocols for file sharing across Windows®, Mac®, and Linux®/UNIX® devices. Coupled with Qsync (a utility that turns a QNAP NAS into a safe, high-capacity data center for file synchronization) any file uploaded to the TS-251B will be made available for all linked devices, such as computers, laptops and mobile devices. Hybrid Backup Sync can help you easily backup or synchronize data on the TS-251B to other QNAP NAS, remote servers, or cloud storage for easy disaster recovery.

QVR Pro safeguards your environment
QNAP’s QVR Pro surveillance solution allows you to arrange a dedicated, independent storage space for surveillance data on TS-251B and leverage the advantages of scalable storage. With QVR Pro, camera management, storage space allocation, camera live view, and playback is greatly simplified. You can also use USB webcams as network cameras with the QUSBCam2 app, and remotely monitor your surveillance feeds at any time with QVR Pro Client’s companion mobile app.

NAS as a Multi-OS Platform
Virtualization Station and Container Station provide comprehensive solutions for creating virtualized environments to improve business IT infrastructure, workflows, and productivity.

Virtualization Station
Virtualization Station allows you to run multiple Windows®, Linux®, UNIX® and Android™ virtual machines on the TS-251B. You can use Virtual Network Computing (VNC) through a browser to operate the virtual machines. Virtualization Station is ideal for organizations to run multiple applications on a single NAS.

Container Station
Container Station integrates LXC and Docker® lightweight virtualization technologies. You can download apps from the built-in Docker Hub® to easily import/export container apps and manage access controls, enjoying the benefits of easy installation, transferability and high-efficiency.

Flexible and economical storage expansion
You need an easy solution to increase storage capacity when running out of space. QNAP provides several ways to expand your NAS storage as needed to accommodate data and business growth.

Upgrade RAID Capacity
Hot swap lower-capacity drives with larger-capacity drives so that your QNAP NAS can grow with your business.

VJBOD
Use VJBOD (Virtual JBOD) to expand your storage capacity by using the unused storage of other QNAP NAS. Up to 8 QNAP NAS can be mounted as local disks on the TS-251B.

Attach Expansion Enclosures
Connect two 2-bay TR-002 or 4-bay TR-004 USB hardware RAID external enclosures* and use the Storage & Snapshots Manager to easily handle NAS capacity expansion.
*TR-002 and TR-004 will be available soon.

CPU

Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz)
Architecture: 64-bit x86

Graphics

Intel® HD Graphics 500

Encryption Acceleration

 (AES-NI)

System Memory

2 GB DDR3L (1 x 2 GB)
or
4 GB DDR3L (1 x 4 GB)

Maximum Memory

8 GB (2 x 4 GB)

Memory Slot

2 x SODIMM DDR3L up to 1866, with dual-channel support

Flash Memory

4GB eMMC

Drive Bay

2 x 3.5" SATA 6 Gbps HDD

Drive Compatibility

• 3.5" SATA 6Gb/s HDD
• 2.5" SATA 6Gb/s HDD
• 2.5" SATA 6Gb/s SSD

SSD Cache Acceleration Support

3.5" drive bay:1 to 2

Gigabit Ethernet Port

1 x RJ45

USB Port

2 x USB 3.0, 3 x USB 2.0

USB One Touch Copy

Front:USB 3.0 Type-A

PCIe Slot

1 PCIe 2.0 x2 slot

HDMI Output

1 x HDMI v1.4b (up to 3840 x 2160 resolution at 30 Hz)

IR sensor

, supporting QNAP RM-IR004 remote control (optional purchase)

Audio

1 x speaker, 2 x MIC Input
1 x 3.5 mm line-out jack
Alarm buzzer
Note: You cannot use the speakers and the line-out jack simultaneously.

LED Indicators

Status/power、LAN、USB、HDD 1 - 2

Buttons

Power, Reset, USB One-touch-copy

System Warning

Alarm buzzer and voice prompts

Form Factor

Tower

Dimensions (H x W x D)

168 x 105 x 226 mm ( 6.61 x 4.13 x 8.90 inch)

Net Weight

1.53 kg (3.37 lbs)

Power Consumption (W)

HDD standby:8.08 W
In operation:15.25 W
(with 2 x 1TB HDDs installed)

Sound Level

Sound pressure (LpAm): 17.3 dB(A)

Power Supply Unit

65W AC adapter, 100-240V

Fan

1 x 7 cm

Operating Temperature & Relative Humidity

0 ~ 40˚C ( 32˚F ~ 104˚F ), 5 ~ 95% RH non-condensing, wet bulb: 27˚C (80.6˚F)

Other Interfaces

Kensington security slot

Note: Use only QNAP memory modules to maintain system performance and stability. For NAS devices with more than one memory slot, use QNAP modules with identical specifications. Warning: Using unsupported modules may degrade performance, cause errors, or prevent the operating system from starting. 
* Sound Level Test Environment: Refer to ISO 7779; Maximum HDD loaded; Bystander Position; Average data from 1 meter in front of operating NAS.
Designs and specifications are subject to change without notice.

 




TS-251B-2G Qtier
ComparisonQtierSSD CacheFull SSD
1.Available SSD Space Expandable as needed Limited by available memory* Expandable as needed
2.Price LowLowHigh
3.Applicable storage Volume/LUN Volume/LUN Volume/LUN
4.Data Migration Method ScheduledAutomatic-
5.Data migration Mechanism Moves data to different tiers depending on access frequencyReplicates frequently-accessed data to SSD storageAll data stored on SSDs
6.Application Scenarios Used for predictable I/O workloads such as file/web/email servers, application virtualization or video editing.Used for highly frequent data access environment such as application virtualization or video editing.Used for applications requiring fast/intensive I/O such as databases or virtualized environments.

Read more about Qnap TS-251B-2G auto tiering.

Spanstor Build And Test
If you buy this Qnap Desktop NAS and hard drives we do free build and test for the unit and hard drives. So you can use this device straight out of the box. All free of charge in TS-251B-2G price.
Same Day and Next Day Delivery available in UK and fast WorldWide delivery for products in stock.
FREE Business Quotes available for products with specific requirements or quantities. Often cheaper than Amazon.

Qnap TS-251B-2G Desktop NAS RAM / Card upgrade options



Qnap LAN-10G2SF-MLX expansion LAN-10G2SF-MLX LAN-10G2SF-MLX More Info Install This
Qnap LAN-1G2T-I210 expansion LAN-1G2T-I210 LAN-1G2T-I210 More Info Install This
Qnap LAN-10G1SR expansion LAN-10G1SR LAN-10G1SR More Info Install This
Qnap LAN-10G2T-X550 expansion LAN-10G2T-X550 LAN-10G2T-X550 More Info Install This
Qnap QM2-2S expansion QM2-2S QM2-2S More Info Install This
Qnap QM2-2P expansion QM2-2P QM2-2P More Info Install This
Qnap QM2-2S10G1T expansion QM2-2S10G1T QM2-2S10G1T More Info Install This
Qnap QM2-2P10G1T expansion QM2-2P10G1T QM2-2P10G1T More Info Install This
Qnap RAM-2GDR3LA0-SO-1866 expansion RAM-2GDR3LA0-SO-1866 RAM-2GDR3LA0-SO-1866 More Info Install This
Qnap RAM-4GDR3LA0-SO-1866 expansion RAM-4GDR3LA0-SO-1866 RAM-4GDR3LA0-SO-1866 More Info Install This
Qnap LAN-10G1TA expansion LAN-10G1TA LAN-10G1TA More Info Install This
Qnap QXG-10G1T expansion QXG-10G1T QXG-10G1T More Info Install This
Qnap QM2-2P-384 expansion QM2-2P-384 QM2-2P-384 More Info Install This
Qnap QM2-2P-344 expansion QM2-2P-344 QM2-2P-344 More Info Install This
Qnap QM2-2P-244A expansion QM2-2P-244A QM2-2P-244A More Info Install This
Qnap QM2-2S-220A expansion QM2-2S-220A QM2-2S-220A More Info Install This
Qnap RM-IR004 expansion RM-IR004 RM-IR004 More Info Install This
Qnap USB-U31A2P01 expansion USB-U31A2P01 USB-U31A2P01 More Info Install This
Qnap QWA-AC2600 expansion QWA-AC2600 QWA-AC2600 More Info Install This
Qnap QXG-10G2SF-CX4 expansion QXG-10G2SF-CX4 QXG-10G2SF-CX4 More Info Install This
Qnap QM2-2S10G1TA expansion QM2-2S10G1TA QM2-2S10G1TA More Info Install This
Qnap QM2-2P10G1TA expansion QM2-2P10G1TA QM2-2P10G1TA More Info Install This





How to install Kodi and Netflix on your QNAP NAS in 2019
Our Brief Guide to installing KODI on your NAS
how to install kodi on qnap

Best 2 bay NAS- Qnap 2019
Best for Plex, Surveillance, Performance, Connectivity, Energy saving, Warranty, Transcoding


Read More ->


best qnap 2 bay 2019






Specifications

General

Stock code IBQ-251B-2G
Brand Qnap
Series Desktop NAS
Model TS-251B-2G
Type 2-Bay RAID (2GB RAM) + PCIe
ROHS Y
Date added 29/05/2018

TS-251B-2G Spec Information

Form Factor / Drive Height 168x105x226mm
Platter size 3.5"
Platter (alternate) 2.5"
RAM/Cache 2GB
Guarantee 2yr
Processor Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz)
CPU Mark (cpubenchmark.net) 1313
Total Drives 2
RAID 0:1:JBOD:
RAID Levels Single Disk, JBOD, RAID 0, 1

TS-251B-2G Spec Connections

sub- connectionI/EQuantity
LAN1GbE RJ45External1
SATASATA 7-pin Discrete with PowerInternal2
PCIePCIe v2 x2Internal1
USB3USB3 type A (host)External2
USB2USB2 type A (host)External3

Software

TS-251B-2G Speed

Speed/RPM 6Gb/s to Gigabit Ethernet (1,000 Mbit/s)

Physical

Colour White
Weight (kg) 2.7kg
Weight (bare) 1.53kg
External Length (mm) 390cm
External Width (mm) 320cm
External Height (mm) 300cm
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Qnap Desktop NAS TS 251B 2G reviews


30/08/2018 | | GB Flag |
Amazing ds218+ alternative!


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