Call a Specialist Today! (02) 9388 1741
Free Delivery! Free Delivery!

QNAP TS-251D
Intel Dual-Core Multimedia NAS with a PCIe Slot for Extending NAS Functionality


QNAP Products
Home & SOHO
QNAP 2-Bay NAS, Intel Celeron Apollo Lake J3355 dual-core 2.0GHz (up to 2.5GHz), 4GB DDR3L SODIMM RAM (1x4GB, 2 DIMM slots, max 8GB total), SATA 6Gb/s, 1xGbE, PCIe slot for 10GbE or 2 more GbE, AES-NI encryption, 4K hardware transcoding, 4K HDMI v1.4b, USB 3.0, virtualization, Surveillance Station (free 2, max 32 ch.), max 2 TR-004 expansion units, speaker, 2x 3.5mmMIC In, 1x Line out
Intel Celeron J4005 2.0GHz Dual Core (up to 2.70GHz), 4GB DDR4 SODIMM (1 x 4GB), max. 8GB (2 DIMMs), 1 GigaLan (with 1 PCIe slot, up to 3 Gigabit LAN ports or 5GbE/ 10GbE)
#TS-251D-4G
Our Price: Request a Quote
QNAP 2-Bay NAS, Intel Celeron Apollo Lake J3355 dual-core 2.0GHz (up to 2.5GHz), 2GB DDR3L SODIMM RAM (1x2GB, 2 DIMM slots, max 8GB total), SATA 6Gb/s, 1xGbE, PCIe slot for 10GbE or 2 more GbE, AES-NI encryption, 4K hardware transcoding, 4K HDMI v1.4b, USB 3.0, virtualization, Surveillance Station (free 2, max 32 ch.), max 2 TR-004 expansion units, speaker, 2x 3.5mmMIC In, 1x Line out
Intel Celeron J4005 2.0GHz Dual Core (up to 2.70GHz), 2GB DDR4 SODIMM (1 x 2GB), max. 8GB (2 DIMMs), 1 GigaLan (with 1 PCIe slot, up to 3 Gigabit LAN ports or 5GbE/ 10GbE)
#TS-251D-2G
Our Price: Request a Quote

Want to build a custom bundle? Contact us!

Click here to jump to more pricing!

Please Note: All Prices are Inclusive of GST

Package Content

  • QNAP TS-251D Storage
  • 1 x Ethernet cable
  • AC Adapter
  • 1 x Power cord
  • 8 x Flat head screw (for 3.5" HDD)
  • 6 x Flat head screw (for 2.5" HDD)
  • Quick Installation Guide

Overview:

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.

 

Available Models

  • TS-251D-4G-
    Intel® Celeron® J4005 dual-core 2.0 GHz processor (burst up to 2.7 GHz) with 4GB RAM (1 x 4GB)
  • TS-251D-2G-
    Intel® Celeron® J4005 dual-core 2.0 GHz processor (burst up to 2.7 GHz) with 2GB RAM (1 x 2B)

PCIe port

The PCIe port supports the installation of a 10GbE/5GbE/2.5GbE/ network expansion card, a QM2 card, a USB 3.1 Gen 2 (10Gbps) card, or a wireless network card.

4K media

Provide 4K media playback and online transcoding, while enabling cross-device multimedia viewing via HDMI output or streaming applications.

Snapshots

Snapshots fully record the system status and data. If files are accidentally deleted or modified, you can quickly restore previously-recorded data.


range of multimedia

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

backs up and synchronizes

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.

VJBOD

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.

Features:

Intel® Celeron® J4005 Dual-Core Processor and AES-NI Hardware Encryption

Powered by Intel® Celeron® J4005 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.

Photo Gallery
Photo Gallery Managed

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®, 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.

*The TS-251D's hardware provides hardware decoding, encoding, and transcoding capabilities. However, playback quality may vary due to playback software, file formats, system usage, and available bandwidth.

Plex 4k

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 unauthorised 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.

Multi-Point File Backup, Access, and Sync

Protect Important Data With Snapshots

Snapshots help protect your data by fully recording the NAS system state and metadata. You can use snapshots to quickly restore files to a previously-recorded state when files are accidentally deleted or modified, or when the system is compromised by ransomware. QNAP snapshots are block-based and only record modified data. Not only does this save storage space, but also reduces the time required to back up and restore data.

Model Snapshots per NAS Snapshots per volume or LUN
TS-251D-2G 64 1,024
TS-251D-4G 32 256

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 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. Alternatively, you can add an affordable QNAP QNA-UC5G1T USB 3.0 to 5GbE adapter to your TS-251D and laptop to enjoy higher network speeds, or boost the USB connectivity of the TS-251D by installing a USB 3.1 Gen 2 (10Gbps) card.

PCIe expansion


QVR Pro Safeguards Your Environment

QNAP's QVR Pro surveillance solution allows you to arrange dedicated, independent storage space for surveillance data on the TS-251D and leverages scalable storage advantages. 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 surveillance feeds anytime with QVR Pro Client mobile app.

Notes:
1. QVR Pro is available for the QNAP NAS models with a least 4GB RAM, QNAP NAS with 2GB RAM please use Surveillance Station.
2. The maximum number of channels supported varies by NAS model, network configuration, and camera settings.

Hardware Specifications:

  TS-251D-4G TS-251D-2G
CPU Intel® Celeron® J4005 dual-core 2.0 GHz processor (burst up to 2.7 GHz)
CPU Architecture 64-bit x86
Graphic Processors Intel® HD Graphics 600 Intel® HD Graphics 600
Floating Point Unit
Encryption Engine (AES-NI) (AES-NI)
Hardware-accelerated Transcoding
System Memory 4 GB SO-DIMM DDR4 (1 x 4 GB) 2 GB SO-DIMM DDR4 (1 x 2 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
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
M.2 SSD Slot Optional via a QM2 PCIe adapter
SSD Cache Acceleration Support
Gigabit Ethernet Port (RJ45) 1
Expandable with an optional PCIe adapter
5 Gigabit Ethernet Port Expandable with an optional PCIe adapter
10 Gigabit Ethernet Port Expandable with an optional PCIe adapter
Jumbo Frame
PCIe Slot 1
Slot 1: PCIe Gen 2 x4
PCIe bandwidth limitations will restrict the NAS 10GbE performance.
USB 2.0 port 3
USB 3.0 port 2
USB 3.1 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 x 105 x 226 mm
Weight (Net) 1.48 kg
Weight (Gross) 2.58 kg
Operating temperature 0 - 40 °C (32°F - 104°F)
Relative Humidity 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)
Power Supply Unit External Power Adapter, 65W, 100-240V
Power Consumption: HDD Sleep Mode 8.08 W
Fan 1 x 70mm
Sound Level 16.7 db(A)
System Warning Buzzer
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.

Optional Accessories:

remote control

RM-IR004

  • INFRARED (IR) remote control with 2 x AAA battery
  • Dimension (L x W x H): 146.00 x 39.00 x 22.60 (mm)
RAM-2GDR4A0-SO-2400

RAM-2GDR4A0-SO-2400

  • DDR type: DDR4(260PIN)
  • Capacity: 2GB
  • Spec: SAMSUNG 256M X 16
  • Manufacturer: ADATA
  • Frequency: DDR4-2400
  • Form(PIN): 260PIN
  • Manufacturer P/N: AD4S240022G17-BSSE
  • Power Supply: 1.2V
  • Dram Organization: 256M*64
  • Temperature: 0℃~85℃
  • Environmental Regulation: RoHS
RAM-4GDR4A0-SO-2400

RAM-4GDR4A0-SO-2400

  • DDR type: DDR4(260PIN)
  • Capacity: 4GB
  • Spec: HYNIX 512M X 16
  • Manufacturer: ADATA
  • Frequency: DDR4-2400
  • Form(PIN): 260PIN
  • Manufacturer P/N: AD4S2400J4G17-BHYA
  • Power Supply: 1.2V
  • Dram Organization: 512M*64
  • Temperature: 0℃~85℃
  • Environmental Regulation: RoHS

Documentation:

Datasheet for QNAP TS-251D is coming soon.

Pricing Notes:

QNAP Products
Home & SOHO
QNAP 2-Bay NAS, Intel Celeron Apollo Lake J3355 dual-core 2.0GHz (up to 2.5GHz), 4GB DDR3L SODIMM RAM (1x4GB, 2 DIMM slots, max 8GB total), SATA 6Gb/s, 1xGbE, PCIe slot for 10GbE or 2 more GbE, AES-NI encryption, 4K hardware transcoding, 4K HDMI v1.4b, USB 3.0, virtualization, Surveillance Station (free 2, max 32 ch.), max 2 TR-004 expansion units, speaker, 2x 3.5mmMIC In, 1x Line out
Intel Celeron J4005 2.0GHz Dual Core (up to 2.70GHz), 4GB DDR4 SODIMM (1 x 4GB), max. 8GB (2 DIMMs), 1 GigaLan (with 1 PCIe slot, up to 3 Gigabit LAN ports or 5GbE/ 10GbE)
#TS-251D-4G
Our Price: Request a Quote
QNAP 2-Bay NAS, Intel Celeron Apollo Lake J3355 dual-core 2.0GHz (up to 2.5GHz), 2GB DDR3L SODIMM RAM (1x2GB, 2 DIMM slots, max 8GB total), SATA 6Gb/s, 1xGbE, PCIe slot for 10GbE or 2 more GbE, AES-NI encryption, 4K hardware transcoding, 4K HDMI v1.4b, USB 3.0, virtualization, Surveillance Station (free 2, max 32 ch.), max 2 TR-004 expansion units, speaker, 2x 3.5mmMIC In, 1x Line out
Intel Celeron J4005 2.0GHz Dual Core (up to 2.70GHz), 2GB DDR4 SODIMM (1 x 2GB), max. 8GB (2 DIMMs), 1 GigaLan (with 1 PCIe slot, up to 3 Gigabit LAN ports or 5GbE/ 10GbE)
#TS-251D-2G
Our Price: Request a Quote
8TB Bundle
QNAP TS-251D (4GB RAM) with Ironwolf HDD 512/4KN SATA Hard Drive (QTY 2 X 4TB) 8TB Capacity
#TS-Ironwolf-17
Our Price: Request a Quote
12TB Bundle
QNAP TS-251D (4GB RAM) with Ironwolf HDD 512/4KN SATA Hard Drive (QTY 2 X 6TB) 12TB Capacity
#TS-Ironwolf-18
Our Price: Request a Quote
16TB Bundle
QNAP TS-251D (4GB RAM) with Ironwolf HDD 512/4KN SATA Hard Drive (QTY 2 X 8TB) 16TB Capacity
#TS-Ironwolf-19
Our Price: Request a Quote
20TB Bundle
QNAP TS-251D (4GB RAM) with Ironwolf HDD 512/4KN SATA Hard Drive (QTY 2 X 10TB) 20TB Capacity
#TS-Ironwolf-20
Our Price: Request a Quote
24TB Bundle
QNAP TS-251D (4GB RAM) with Ironwolf HDD 512/4KN SATA Hard Drive (QTY 2 X 12TB) 24TB Capacity
#TS-Ironwolf-21
Our Price: Request a Quote
28TB Bundle
QNAP TS-251D (4GB RAM) with Ironwolf HDD 512/4KN SATA Hard Drive (QTY 2 X 14TB) 28TB Capacity
#TS-Ironwolf-22
Our Price: Request a Quote
32TB Bundle
QNAP TS-251D (4GB RAM) with Ironwolf HDD 512/4KN SATA Hard Drive (QTY 2 X 16TB) 32TB Capacity
#TS-Ironwolf-23
Our Price: Request a Quote
Storage Expansion Card
QM2 series, 2 x PCIe 2280 M.2 SSD slots, PCIe Gen2 x 4 , 1 x AQC107S 10GbE NBASE-T port
Check NAS compatibility list: https://www.qnap.com/en/compatibility/
#QM2-2P10G1TA
Our Price: Request a Quote
Dual 2.5″ SATA to 3.5″ SATA drive converter/adapter, up to 9.5mm 2.5″ drive height support, hardware RAID 0/1, JBOD, Individual disk modes
#QDA-A2AR
Our Price: Request a Quote
Dual M.2 2280 SATA to 2.5″ SATA drive converter/adapter, hardware RAID 0/1, JBOD, Individual disk modes
#QDA-A2MAR
Our Price: Request a Quote
Network Expansion Card
Dual-port SFP+ 10GbE network expansion card; low-profile formfactor; PCIe Gen3 x8
TS-470, TS-470 Pro, TS,473, TVS-472XT, TVS-473, TVS-473e, TS-670, TS-670 Pro, TS-673, TS-677, TVS-670, TVS-672XT, TVS-673, TVS-673e, TVS-682, TVS-682T, TS-870, TS-870 Pro, TS-870U-RP, TS-873, TS-877, TS-877XU, TS-877XU-RP, TS-883XU, TS-883XU-RP, TVS-870, TVS-872XT, TVS-872XU, TVS-872XU-RP, TVS-873, TVS-873e, TVS-882, TVS-882BR, TVS-882BRT3, TVS-882ST2, TVS-882ST3, TVS-882T, TS-1270U-RP, TS-1277, TS-1277XU-RP, TS-1283XU-RP, TVS-1272XU-RP, TVS-1282, TVS-1282T, TVS-1282T3, TS-1677XU-RP, TS-1683XU-R
#QXG-10G2SF-CX4
Our Price: Request a Quote
Single port 2.5GbE 4-speed Network card
PCIe supported NAS and Windows 10/ Windows Server 2016 & 2019 /Linux PCs. Visit https://www.qnap.com/go/compatibility for the compatibible NAS.
#QXG-2G1T-I225
Our Price: Request a Quote
Dual port 2.5GbE 4-speed Network card
PC/Server or NAS with a PCIe slot
#QXG-2G2T-I225
Our Price: Request a Quote
Quad port 2.5GbE 4-speed Network card
PC/Server or NAS with a PCIe slot
#QXG-2G4T-I225
Our Price: Request a Quote
QNAP dual port 5GbE multi-Gig expansion card;Aquantia AQC111C;Gen2 x 2;low profile
PCIe supported NAS
#QXG-5G2T-111C
Our Price: Request a Quote
QNAP quad-port 5GbE multi-Gig expansion card;Aquantia AQC111C;Gen3 x 4;low profile
NAS Compatibility: www.qnap.com/go/compatibility
#QXG-5G4T-111C
Our Price: Request a Quote
Interface Expansion
USB 3.2 Gen 2 dual-port PCIe expansion card
NAS with a PCIe slot, Windows 8.x/10, Ubuntu 20.04 LTS Note: 1. Minimum QTS 4.3.6 requirement. 2. USB cable is not included. 3. Follow the compatibility guide: https://www.qnap.com/en/compatibility/
#QXP-10G2U3A
Our Price: Request a Quote
QNAP WiFi 6 (Intel AX200) PCIe wireless card w/ antenna & brackets for NAS; Giga-byte GC-WBAX200 QNAP Edition
PCIe supported NAS and Windows 10/Linux PCs.
#QXP-W6-AX200
Our Price: Request a Quote
RAM
QNAP 4GB DDR4 RAM, 2400 MHz, SO-DIMM, 260 pin, A0 version
TVS-951X
#RAM-4GDR4A0-SO-2400
Our Price: Request a Quote
Cable / Transceiver
SFP+ 10GbE twinaxial direct attach cable, 1.5M, S/N and FW update
For use with SFP+ 10GbE
#CAB-DAC15M-SFPP
Our Price: Request a Quote

Want to build a custom bundle? Contact us!