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QNAP TS-251D-4G 2 Bay NAS Intel Celeron J4005 2.0 GHz processor 4G

Special Price $711.41 Regular Price $763.75

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Product SKU
QNA00033

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QNAP TS-251D-4G 2 Bay NAS Intel Celeron J4005 2.0 GHz processor 4G

  • Smart AI Photo Management
  • Real-Time 4K Video Transcoding
  • Easy and Secure File Management
  • Multi-Point File Backup, Access, and Sync
  • Protect Important Data With Snapshots
  • Extend NAS Functionality With The PCIe Slot
  • Flexible and Economical Storage Expansion

QNAP TS-251D-4G 2 Bay NAS Intel Celeron J4005 2.0 GHz processor 4G

The TS-251D integrates secure data storage and multimedia entertainment into one device. Featuring a PCIe slot, the TS-251D allows you to flexibly extend NAS functionality and potential applications. You can enhance overall system performance by installing a QNAP QM2 card for M.2 SSD caching/10GbE connectivity combined with Qtier auto-tiering storage and installing a 10GbE/5GbE/2.5GbE network expansion card. In addition, TS-251D can be used with QNAP’s smart AI photo management application, QuMagie, which integrates AI image recognition to group similar photos together in album “People”, “Things” and “Places”. The TS-251D features an HDMI slot to stream multimedia throughout your home. The TS-251D supports dual-channel hardware decoding and transcoding, allowing you to view NAS media files smoothly across various devices.

Intel Celeron J4025 Dual-Core Processor and AES-NI Hardware Encryption

Powered by Intel Celeron J4025 dual-core 2.0 GHz processor (burst up to 2.9 GHz), DDR4 RAM (up to 8 GB), one Gigabit LAN port, and supports SATA 6Gb/s hard drives, the TS-251D combines network expansion cards to create dependable read/write performance. The TS-251D features Intel AES-NI 256 hardware-accelerated encryption for both full NAS volumes and shared folders, boosting system performance while securing sensitive data stored in the TS-251D.

Smart AI Photo Management

QuMagie integrates QuMagie Core AI image recognition technology for facial recognition, subject identification, and geotagging photos.Similar photos are categorized into People, Places, and Things albums. Moreover, QuMagie features a built-in timeline scroll, customizable folder covers, iOS Live Photo display and a powerful search tool, to provide you with the ultimate photo management and image sharing solution.

Real-Time 4K Video Transcoding

Featuring advanced Intel UHD Graphics, the TS-251D supports dual-channel 4K 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 media files on an HDTV using the HDMI output or with Plex Media Server to stream media files to mobile devices and media streaming devices (including DLNA, Roku, Apple TV (via Qmedia), Amazon Fire TV and Chromecast). The QNAP RM-IR004 remote control (sold separately) can be configured using QButton to customize individual button actions, providing a more user-friendly NAS experience.

Easy and Secure File Management

File Station centralizes files stored on your TS-251D and in the cloud. You can easily upload files from your computer, drag and drop files between folders, rename files, delete files, and configure file and folder permissions to prevent unauthorized access. Moreover, with Microsoft Office Online you can open and modify Microsoft Office documents stored on the TS-251D, without having to download Word documents, Excel worksheets, and PowerPoint presentations from your NAS to the PC. When it comes to sharing sensitive or confidential files on the TS-251D, you can use File Station to enhance data security effectively by encrypting files into a .qenc file, set a password, and then have file recipients use QENC Decrypter to decrypt the sent file.

Multi-Point File Backup, Access, and Sync

The TS-251D stores data and files centrally, and supports file sharing protocols, including SMB/CIFS, AFP and NFS for Windows®, Mac, and Linux/UNIX devices. Coupled with Qsync (a utility that transforms a QNAP NAS into a secure, high-capacity data center for file synchronization) any file uploaded to the TS-251D becomes available for all linked devices, such as computers, laptops, and mobile devices. Hybrid Backup Sync helps you easily backup or synchronize data on the TS-251D to another QNAP NAS, remote servers, or cloud storage for disaster recovery. Additionally, QuDedup technology greatly improves the efficiency of multi-version backup to the destination storage, while optimizing storage utilization. You can install the QuDedup Extract Tool on your computer and restore deduplicated files to their normal status

Extend NAS Functionality With The PCIe Slot

With a PCIe expansion Gen 2.0 x 4 slot, the TS-251D provides flexibility in extending NAS functionality and potential applications. To optimize system performance, install a QNAP QM2 card for M.2 SSD caching/10GbE connectivity and use with Qtier tiered storage for optimal system performance. You can also use the TS-251D as a wireless access point by installing a compatible QNAP QWA-AC2600 or QXP-W6-AX200 wireless network card to create a wireless media streaming environment. Moreover, by configuring the QXG-10GbE/5GbE network expansion cards, you can upgrade your network to high-speed connectivity with an existing CAT 5e cable. You can also boost the USB connectivity of the TS-251D by installing a USB 3.2 Gen 2 (10Gbps) card.

More Information
Model TS-251D-4G
Condition New
Product Type NAS
Features

HARDWARE

CPU

Intel Celeron J4025/J4005 2-core/2-thread processor, burst up to 2.9/2.7 GHz

CPU Architecture

64-bit x86

Graphics Processors

Intel HD Graphics 600

Floating Point Unit

Yes

Encryption Engine

(AES-NI)

Hardware-accelerated Transcoding

Yes

System Memory

4 GB SO-DIMM DDR4 (1 x 4 GB)

Maximum Memory

8 GB (2 x 4GB)

Memory Slot

2 x SO-DIMM DDR4

For dual-DIMM configuration, you must use a pair of identical DDR4 modules.

Flash Memory

4GB (Dual boot OS protection)

Drive Bay

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

Hot-swappable

Yes

M.2 Slot

Optional via a QM2 PCIe adapter

SSD Cache Acceleration Support

Yes

Gigabit Ethernet Port (RJ45)

1

Expandable with an optional PCIe adapter

5 Gigabit Ethernet Port (5G/2.5G/1G/100M)

Expandable with an optional
PCIe adapter

10 Gigabit Ethernet Port

Expandable with an optional PCIe adapter

Wake on LAN (WOL)

Yes

Jumbo Frame

Yes

PCIe Slot 1

Slot 1: PCIe Gen 2 x4

PCIe bandwidth limitations will restrict the NAS 10GbE performance.

USB 2.0 port

3

USB 3.2 Gen 1 port

2

USB 3.2 Gen 2 (10Gbps) Port

Optional via a PCIe expansion card

IR Sensor

(Optional QNAP RM-IR004 remote control)

HDMI Output

1, HDMI 2.0

Form Factor

Tower

LED Indicators

Power/Status, LAN, USB, HDD1-2

Buttons

Power, USB copy, Reset

Dimensions (HxWxD)

168 × 105 × 226 mm

Weight (Net)

1.48 kg

Weight (Gross)

2.58 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: 27ËšC (80.6ËšF)

Power Supply Unit

External Power Adapter, 65W, 100-240V

Power Consumption:

HDD Sleep Mode 8.08 W

Power Consumption:

Operating Mode, Typical 15.25 W

Tested with drives fully populated.

Fan

1 x 70mm

Sound Level

16.7 db(A)

System Warning

Buzzer

Kensington Security Slot

Yes

Max. Number of Concurrent Connections (CIFS) - with Max.

Memory 1500

Warranty 2 Year Warranty

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QNAP TS-251D-4G 2 Bay NAS Intel Celeron J4005 2.0 GHz processor 4G
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