QNAP TS-251D-4G SAN/NAS Storage System TS-251D-4G-US

No reviews yet Write a Review
CAD $510.99
Calculated at Checkout


Intel Dual-Core Multimedia NAS with a PCIe Slot for Extending NAS Functionality

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.

The PCIe port supports the installation of a 10GbE/5GbE/2.5GbE/ network expansion card, a QM2 card, a USB 3.2 Gen 2 (10Gbps) card, or a wireless network card.

Provide 4K media playback and online transcoding, while enabling 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 previously-recorded data.

QNAP provides a wide range of multimedia applications. You can manage all apps through the Multimedia Console to simplify management.

HBS backs up and synchronizes NAS data to other remote servers or cloud storage, while QuDedup deduplicates data at the source to reduce network bandwidth and storage space.

Use VJBOD (Virtual JBOD) to expand your storage capacity by using the unused storage of other QNAP NAS. Connect up to two TR series USB storage enclosure.

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 2.7 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.

Multiple Ways To Enjoy Your Multimedia

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

  • Experience responsive performance, power, adaptability and fun with Intel Celeron 2 ghz processor
  • Up to 10x faster than standard Ethernet connectivity and provides high-performance uplinks
  • RAID technology - data reliability, fault tolerance and improved overall performance

Extra Information

Number of Hard Drives Installed:
Form Factor:
Limited Warranty:
2 Year
Flash Memory Capacity:
4 GB
Controller Type:
Serial ATA/600
Expansion Slot Type:
PCI Express 2.0 x4
QNAP Systems
Processor Manufacturer:
Number of Solid State Drive Installed:
Processor Type:
RAID Levels:
Number of Hard Drives Supported:
Number of Total Expansion Slots:
Product Type:
SAN/NAS Storage System
Number of 2.5"/3.5" Bays:
Operating System:
QTS 4.4.1
Number of Boot Drives:
Country of Origin:
Ethernet Technology:
Gigabit Ethernet
Manufacturer Website Address:
Number of Solid State Drive Supported:
Number of Total Expansion Bays:
Network (RJ-45):
Total Number of USB Ports:
Processor Speed:
2 GHz
Processor Core:
Dual-core (2 Core)
Standard Memory:
4 GB
Number of USB 2.0 Ports:
Product Model:
Processor Model:
Package Contents:
TS-251D-4G SAN/NAS Storage System 1 x Ethernet Cable AC Adapter Power Cord 8 x Flat Head Screws (for 3.5" HDD) 6 x Flat Head Screws (for 2.5" HDD) Quick Installation Guide (QIG)
Maximum Power Supply Wattage:
65 W
Memory Technology:
Number of USB 3.2 Gen 1 Ports:
RAID Supported: