QNAP TS-251D J4005 Ethernet LAN Tower White NAS
Stock code: TS-251D-4G | Quick code: 114846

QNAP TS-251D J4005 Ethernet LAN Tower White NAS

TS-251D, Celeron J4005, 4 GB DDR4, 2x 3.5" SATA II/III, M.2, 1G RJ-45, PCIe, USB 3.0, HDMI, 168x105x226 mm

QNAP TS-251D

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Custom Spanstor Build & Test

As part of our Spanstor Build & Test services, any enclosure bought with drives, we will include all firmware installations, physical drive installations, RAID/cache configurations and drive bad-sector checks, all at no additional cost. If you have any questions, please contact our friendly sales team by chat, phone or email.

Configure this product

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® 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.

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.

Multiple Ways To Enjoy Your Multimedia
QNAP provides a wide range of multimedia applications for you to easily enjoy photos, music, and videos.

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.

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.

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.

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.

Multiply Your Productivity
The app-driven QTS operating system provides solutions for simplifying file backup, management, search, and more.

Flexible and Economical Storage Expansion
QNAP provides an easy and flexible solution for increasing storage capacity before you run out of storage space. Here are the following ways you can expand NAS storage for accommodating data and business growth:

Upgrade RAID Capacity
Hot-swap lower-capacity drives with larger-capacity drives for your QNAP NAS to grow with your business.

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

Attach Expansion Enclosures
Easily expand NAS capacity by connecting two TR-002, TR-004 USB hardware RAID external enclosures or TL-D800C USB JBOD enclosures with QNAP’s Storage & Snapshots Manager application.

Storage
Online RAID migration Yes
Online RAID expansion Yes
Storage drives installed No
Installed drive type No
Supported storage drive types HDD & SSD
Number of storage drives supported 2
Hot-swap drive bays Yes
RAID support Yes
Supported file systems FAT32,HFS+,NTFS,ext3,ext4
RAID levels 0,1,JBOD
Supported storage drive interfaces Serial ATA II, Serial ATA III
Storage drive sizes supported 3.5″
Number of M.2 (M & B) slots 1
RAID rebuild Yes
Processor
Processor manufacturer Intel
Tjunction 105 °C
Thermal Design Power (TDP) 10 W
Processor threads 2
Processor socket BGA 1090
Processor package size 25 x 24 mm
Processor operating modes 64-bit
Processor lithography 14 nm
Processor codename Gemini Lake
Processor cache 4 MB
Processor boost frequency 2.7 GHz
PCI Express slots version 2.0
PCI Express configurations 1×2,1×2+2×1,1×4,2×1,4×1
On-board graphics adapter model Intel® UHD Graphics 600
CPU configuration (max) 1
Maximum internal memory supported by processor 8 GB
Conflict-Free processor Yes
Processor ARK ID 128992
Processor frequency 2 GHz
Processor family Intel® Celeron®
Processor model J4005
Processor cores 2
Memory
Internal memory type DDR4
Internal memory 4 GB
Maximum RAM supported 8 GB
Memory slots 2
Flash memory 4000 MB
Memory form factor SO-DIMM
Network
Link aggregation Yes
Ethernet LAN Yes
Ethernet LAN data rates 1000 Mbit/s
Wi-Fi No
Wake-on-LAN ready Yes
Supported network protocols TCP/IP, PTP, L2TP/IPSec, OpenVPN, QBelt(, FTP, SFTP, TFTP
Jumbo frames support Yes
iSCSI support Yes
DHCP server Yes
DHCP client Yes
WLAN adapter supported Yes
Ports & interfaces
USB port Yes
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 2
HDMI version 2.0
USB 2.0 ports quantity 3
HDMI ports quantity 1
Ethernet LAN (RJ-45) ports 1
Hard drive
RAID support Yes
Supported file systems FAT32,HFS+,NTFS,ext3,ext4
RAID levels 0,1,JBOD
Graphics
On-board graphics adapter model Intel® UHD Graphics 600
On-board graphics adapter ID 0x3185
On-board graphics adapter dynamic frequency (max) 700 MHz
On-board graphics adapter DirectX version 12.0
On-board graphics adapter burst frequency 700 MHz
On-board graphics adapter base frequency 250 MHz
Maximum on-board graphics adapter memory 8 GB
Number of displays supported (on-board graphics) 3
Design
Cooling type Active
Fan diameter 7 cm
Cable lock slot type Kensington
Product colour White
Number of fans 1 fan(s)
LED indicators HDD, LAN, Power, Status, USB
Chassis type Tower
Cable lock slot Yes
Technical details
Type NAS
Device class Home & Home Office
Backup function Yes
Backup features Cloud, USB drive
Product colour White
Noise level 16.7 dB
Multilingual support Yes
LED indicators HDD, LAN, Power, Status, USB
Chassis type Tower
Buzzer Yes
Number of fans 1 fan(s)
Performance
Built-in FTP server Yes
System log Yes
Share folder CIFS/SMB
S.M.A.R.T. support Yes
Hot spare Yes
Browser supported Apple Safari 7+, Google Chrome, Microsoft Internet Explorer 10+, Mozilla Firefox
Type NAS
Device class Home & Home Office
Backup function Yes
Backup features Cloud, USB drive
On/off switch Yes
Windows operating systems supported Windows 10,Windows 7,Windows 8
Server operating systems supported Windows Server 2003,Windows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows Server 2016,Windows Server 2019
Mac operating systems supported Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Linux operating systems supported Yes
Web-based management Yes
Security algorithms 256-bit AES,FIPS 140-2,SNMPv3,SSH,SSL/TLS
Reset button Yes
Operating system version 4.4.1
Operating system installed QNAP Turbo System
Noise level 16.7 dB
Multilingual support Yes
Buzzer Yes
Access Control List (ACL) Yes
Snapshot Yes
USB copy function Yes
Cooling
Cooling type Active
Fan diameter 7 cm
Number of fans 1 fan(s)
Security
Cable lock slot type Kensington
Security algorithms 256-bit AES,FIPS 140-2,SNMPv3,SSH,SSL/TLS
Cable lock slot Yes
Access Control List (ACL) Yes
Software
Windows operating systems supported Windows 10,Windows 7,Windows 8
Server operating systems supported Windows Server 2003,Windows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows Server 2016,Windows Server 2019
Mac operating systems supported Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Linux operating systems supported Yes
Operating system version 4.4.1
Operating system installed QNAP Turbo System
Management features
On/off switch Yes
Web-based management Yes
Reset button Yes
Power
Power supply location External
Power supply unit (PSU) capacity 65 W
AC input voltage 100 – 240 V
Power consumption (typical) 15.25 W
Power consumption (sleep) 8.08 W
Number of power supply units 1
External power adapter Yes
Weight & dimensions
Width 105 mm
Depth 226 mm
Height 168 mm
Weight 1.48 kg
Package weight 2.58 kg
Packaging content
Quick installation guide Yes
External power adapter Yes
Cables included AC, LAN (RJ-45)
Processor special features
UART Yes
Thermal Monitoring Technologies Yes
Number of execution units 12
Maximum number of PCI Express lanes 6
Intel® Turbo Boost Technology No
Intel® Smart Response Technology No
Intel® Secure Key Yes
Intel® Quick Sync Video Technology Yes
Intel® OS Guard Yes
Intel® Identity Protection Technology (Intel® IPT) Yes
Intel® Hyper Threading Technology (Intel® HT Technology) No
Intel® Anti-Theft Technology (Intel® AT) No
Intel® AES New Instructions (Intel® AES-NI) Yes
Intel VT-x with Extended Page Tables (EPT) Yes
Intel Virtualization Technology for Directed I/O (VT-d) Yes
Intel Virtualization Technology (VT-x) Yes
Intel Smart Response Technology version 0.00
Intel Secure Key Technology version 1.00
Intel Identity Protection Technology version 1.00
Intel Enhanced Halt State Yes
Intel 64 Yes
Idle States Yes
Execute Disable Bit Yes
Enhanced Intel SpeedStep Technology Yes
Embedded options available No
Memory types supported by processor DDR4-SDRAM,LPDDR4-SDRAM
System requirements
Windows operating systems supported Windows 10,Windows 7,Windows 8
Server operating systems supported Windows Server 2003,Windows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows Server 2016,Windows Server 2019
Mac operating systems supported Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.15 Catalina, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Linux operating systems supported Yes
Operational conditions
Operating temperature (T-T) 0 – 40 °C
Operating relative humidity (H-H) 5 – 95%
Packaging data
Package weight 2.58 kg
Cables included AC, LAN (RJ-45)
Other features
Processor ARK ID 128992

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