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● Processor : Intel Celeron Quad-Core 2.0GHz (up to 2.42GHz)
● Memory : 8GB DDR3L RAM (max 8GB), SATA 6Gb/s
● Slot Bay : 2-Bay NAS
Facing the increasing demand for data storage, sharing and multimedia processing, more and more users are looking for a NAS system with good performance and an affordable price tag. The Intel® quad-core TS-251+ provides an uncompromising high-performance scalable storage solution for professional users. Powered by the intelligent QTS 4.2 operating system, the TS-251+ performs as an easy-to-use yet powerful NAS for data backup, file synchronization and sharing, remote access and multimedia applications, and is ideal for users to create a secure private cloud to access their data easily.
- Centralize your file storage, sharing and backup with excellent performance
- Run multiple Windows®, Linux®, UNIX® and Android™ based virtual machines with the Virtualization Station
- Operate multiple isolated Linux® systems as well as download containerized apps with Container Station
- Enjoy the best audio-visual experience with HDMI output and the free remote control
- Transcode Full HD videos on-the-fly or offline*
- Stream multimedia files via DLNA®, Chromecast™ and Bluetooth® with multi-zone multimedia control
- Quickly find specific files by real-time, natural search with Qsirch
- Scale up to 10 drives with QNAP UX-800P expansion enclosure
Quad-core 64-bit Intel® Celeron® CPU for exceptional performance
The TS-251+ is powered by a 64-bit Intel® Celeron® quad-core 2.0GHz processor and has 2GB/8GB energy-efficient DDR3L RAM (upgradable to 8GB) and dual Gigabit LAN ports, delivering up to 225 MB/s read & write speeds with port trunking mode. The TS-251+ can also automatically increase the processor’s clock rate from 2.0GHz to 2.42GHz when needed for CPU-intensive tasks. The TS-251+ supports AES 256-bit volume & folder encryption with transfer speeds of up to 205 MB/s, boosting system performance & security while ensuring the safety of sensitive personal data stored in the TS-251+.
Tested in QNAP Lab. Figures could vary by environment.
OS: QTS 4.2.0
Volume type: RAID 0; 2 x Seagate 1TB HDD (ST1000NM0033)
Network environment: direct connection between NAS and PC, 1GbE LAN (MTU 1500)
Intel® Core™ i7-4790 3.60GHz CPU; DDR3-1600 16GB; Seagate 500GB ST500DM002; Intel Gigabit CT (MTU 1500);Windows® 7Professional 64bit SP1
IOMeter configuration: Transferring 8GB file continuously to/from 2 PCs for 3 minutes. Block size: 64KB for SMB2.0 (Throughput)
|CPU Architecture||64-bit x86|
|Graphic Processors||Intel® HD Graphics|
|Floating Point Unit|
|System Memory||8 GB SO-DIMM DDR3L (2 x 4GB)|
|Maximum Memory||8 GB (2 x 4GB)|
2 x SO-DIMM DDR3L
When installing two memory modules, please ensure that they are the same size and ideally use the same type of RAM for both memory slots.
For the information of RAM module installation and compatible NAS models, please refer to the QNAP RAM Module Installation Guide.
|Flash Memory||512MB (Dual boot OS protection)|
2 x 3.5-inch SATA 6Gb/s, 3Gb/s
The system is shipped without HDD.
For the HDD compatibility list, please visit https://www.qnap.com/compatibility/
|Drive Compatibility||3.5-inch SATA hard disk drives|
2.5-inch SATA hard disk drives
2.5-inch SATA solid state drives
|SSD Cache Acceleration Support|
|Gigabit Ethernet Port (RJ45)||2|
|Wake on LAN (WOL)|
|USB 2.0 port||2|
|USB 3.2 Gen 1 port||2|
|IR Sensor||(RM-IR002 & MCE)|
|HDMI Output||1, (up to 1080p)|
|LED Indicators||Power/Status, LAN, USB, HDD1-2|
|Buttons||Power, Reset, USB Auto Copy|
|Dimensions (HxWxD)||168.5 × 102 × 225 mm|
|Weight (Net)||1.28 kg|
|Weight (Gross)||2.32 kg|
|Operating temperature||0 – 40 °C (32°F – 104°F)|
|Storage Temperature||-20 – 70°C (-4°F – 158°F)|
|Relative Humidity||5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)|
|Power Supply Unit||60W/65W adapter, 100-240V|
|Power Consumption: HDD Sleep Mode||10.56 W|
|Power Consumption: Operating Mode, Typical||18.09 W|
|Fan||1 x 70mm, 12VDC|
|Sound Level||15.4 db(A)|
|Kensington Security Slot|
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.
Product images are for illustrative purposes only and may differ from the actual product. Due to differences in monitors, colors of products may also appear different to those shown on the site.
Designs and specifications are subject to change without notice.