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Sign out TS-251D 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.
Flexible PCIe expansion
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.
4K HDMI™ output
Provide 4K media playback and online transcoding, while enabling cross-device multimedia viewing via HDMI™ output or streaming applications.
Snapshot protection against Ransomware
Snapshots fully record the system status and data. If files are accidentally deleted or modified, you can quickly restore previously-recorded data.
Centralized multimedia management
QNAP provides a wide range of multimedia applications. You can manage all apps through the Multimedia Console to simplify management.
Data backup and recovery
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.
Flexible storage expansion
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.
Available Models
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.
Learn More: QuMagie
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.
Learn More: Plex Media Server
*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.
Learn More: QNAP Multimedia Streaming, Multimedia Console
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Multimedia Console consolidates all QTS multimedia applications into one app for easier and centralized multimedia app management.
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Cinema28 enables single-interface management of all media files and can stream files to every connected device throughout your home.
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Qmedia allows music, photos and videos to be effortlessly streamed to Android TV™, Apple TV® (via Qmedia), and Amazon Fire TV or set-top boxes.
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.
Learn More: Volume & LUN Snapshots
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.
Learn More: QM2, QXP-W6-AX200, QWA-AC2600, Wireless network expansion card, WirelessAP Station, QXG-5GbE network expansion card, USB 3.2 Gen 2 Expansion 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.
Learn More: QVR Pro, QVR Pro Client
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. For more information, visit https://www.qnap.com/go/qvr-nas-selector.
Multiply Your Productivity
The app-driven QTS operating system provides solutions for simplifying file backup, management, search, and more.
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QmailAgent
Centrally manage and switch between different email accounts, back up emails to the NAS, and safeguard email security and personal privacy.
Learn More: QmailAgent
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Notes Station 3
Notes Station 3 can bring the advantages of collaborative note-taking with improved productivity to provide higher efficiency for your workgroup.
Learn More: Notes Station 3
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Smart Filing
Qfiling automates file organization. Files are automatically archived into folders based on your settings.
Learn More: Qfiling
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Full-Text Search
Qsirch quickly finds images, music, videos, documents, emails, and other files.
Learn More: Qsirch
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:
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Upgrade RAID Capacity
Hot-swap lower-capacity drives with larger-capacity drives for your QNAP NAS to grow with your business.
Learn More: Online RAID Capacity Upgrade
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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.
Learn More: VJBOD
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Attach Expansion Enclosures
Easily expand NAS capacity by connecting two TR-002, TR-004 USB hardware RAID external enclosures with QNAP’s Storage & Snapshots Manager application.
Extend hardware warranty up to 5 years
The TS-251D is backed by a 2-year warranty at no additional costs. You can purchase a warranty extension that extends your warranty coverage up to 5 years.
Learn More: QNAP warranty services
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Optional Accessories
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QM2-2P-244A
Dual M.2 22110/2280 PCIe SSD expansion card;
Dimension (L × W × H): 26.50 × 12.00 × 5.50 (cm)
Weight: 0.29 (kg)
Please check the M.2 SSD compatibility list and QM2 Installation Guide
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QM2-2P-344 (EOL)
Dual M.2 PCIe SSD expansion card; supports up to two M.2 2280/22110 formfactor M.2 PCIe (Gen3 x4) SSDs; PCIe Gen3 x4 host interface; Low-profile bracket pre-loaded, Low-profile flat and Full-height are bundled
Dimension (L × W × H): 19.50 × 5.30 × 12.30 (cm)
Weight: 0.30 (kg)
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QM2-2P-344A
Dual M.2 PCIe SSD expansion card; M.2 2280/22110 PCIe NVMe(Gen 3x4) SSDs; PCIe Gen3x4 host interface
Dimension (L × W × H): 17.05 × 6.89 × 1.93 (cm)
Weight: 0.30 (kg)
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QM2-2P-384 (EOL)
Dual M.2 PCIe SSD expansion card; supports up to two M.2 2280/22110 formfactor M.2 PCIe (Gen3 x4) SSDs; PCIe Gen3 x8 host interface; Low-profile bracket pre-loaded, Low-profile flat and Full-height are bundled
Dimension (L × W × H): 19.50 × 5.30 × 12.30 (cm)
Weight: 0.30 (kg)
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QM2-2P-384A
Dual M.2 PCIe SSD expansion card; M.2 2280/22110 PCIe NVMe(Gen 3x4) SSDs; PCIe Gen3x8 host interface
Dimension (L × W × H): 17.05 × 6.89 × 1.93 (cm)
Weight: 0.30 (kg)
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QM2-2P10G1TB
QM2 series, 2 x PCIe 2280 M.2 SSD slots, PCIe Gen3 x 8 , 1 x Marvell AQC113C 10GbE NBASE-T port
Dimension (L × W × H): 15.27 × 6.89 × 1.89 (cm)
Weight: 0.30 (kg)
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QM2-2P2G2T
QNAP QM2 series, 2 x PCIe 2280 M.2 SSD slots, PCIe Gen3 x 4 , 2 x Intel I225LM 2.5GbE NBASE-T port
Dimension (L × W × H): 15.30 × 1.90 × 6.90 (cm)
Weight: 0.29 (kg)
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QM2-2S-220A
Dual M.2 22110/2280 SATA SSD expansion card;
Dimension (L × W × H): 19.50 × 5.30 × 12.30 (cm)
Weight: 0.30 (kg)
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QDA-A2AR
Dual 2.5" SATA drive to single 3.5" SATA drive adapter with RAID 0/1, JBOD, individual modes
Dimension (L × W × H): 19.50 × 11.20 × 4.40 (cm)
Weight: 0.22 (kg)
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QDA-A2MAR
Dual M.2 2280 SATA drive to single 2.5" SATA drive adapter with RAID 0/1, JBOD, individual modes
Dimension (L × W × H): 19.50 × 11.20 × 4.40 (cm)
Weight: 0.22 (kg)
Computer SATA ports that do not support 12V (+12V_SATA) are not compatible with the QDA-A2MAR. Please consult your computer vendor for the SATA port voltage output before purchasing the QDA-A2MAR.
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FAN-7CM-T01
DC Fan, 70*70*25mm, 12V, 4PIN
Dimension (L × W × H): 18.60 × 14.10 × 4.00 (cm)
Weight: 0.08 (kg)
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PWR-ADAPTER-65W-A01
65W external power adapter for 2 Bay NAS
Dimension (L × W × H): 4.00 × 14.00 × 18.50 (cm)
Weight: 0.32 (kg)
For safety information and operating instructions, please refer to the documentation of your original QNAP product.
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SCR-HDD25A-96
Screw pack for 2.5" HDD / SSD intallation, 96 pieces, Flat head machine screw
Dimension (L × W × H): 0.10 × 11.80 × 12.80 (cm)
Weight: 0.01 (kg)
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SCR-HDD35B-96
Screw pack for 3.5" HDD intallation, 96 pieces, Flat head machine screw
Dimension (L × W × H): 0.10 × 11.80 × 12.80 (cm)
Weight: 0.03 (kg)
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TRAY-35-NK-BLK04
Black HDD Tray v4 for 3.5" and 2.5" drives without key lock, black, 6 x screws for 2.5" HDD
Dimension (L × W × H): 18.40 × 14.20 × 4.00 (cm)
Weight: 0.07 (kg)
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LAN-10G2SF-MLX (EOL)
Dual-port 10GbE SFP+ network expansion card, Brackets for rackmount,tower and full height models are included.
Dimension (L × W × H): 6.00 × 10.50 × 26.00 (cm)
Weight: 0.24 (kg)
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LAN-10G2T-X550 (EOL)
QNAP Dual-port 10 Gigabit Network Expansion Card for rackmount and tower models (10GBASE-T interface)
Dimension (L × W × H): 6.00 × 10.50 × 26.00 (cm)
Weight: 0.42 (kg)
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QXG-10G1T
Single-port (10Gbase-T) 10GbE network expansion card, PCIe Gen3 x4, Low-profile bracket pre-loaded, Low-profile flat and Full-height are bundled
Dimension (L × W × H): 14.30 × 19.30 × 5.20 (cm)
Weight: 0.17 (kg)
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QXG-10G2T-107 (EOL)
Dual-port 10GBASE-T 10Gb network expansion card; low-profile formfactor; PCIe Gen2 x4
Dimension (L × W × H): 14.50 × 19.00 × 5.20 (cm)
Weight: 0.24 (kg)
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QXG-25G2SF-CX6
Dual-port SFP28 25Gb network expansion card; Mellanox ConnectX-6 Lx;low-profile formfactor; PCIe Gen4 x8
Dimension (L × W × H): 12.00 × 1.65 × 6.90 (cm)
Weight: 0.15 (kg)
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QXG-2G1T-I225
Single port 2.5GbE 4-speed Network card
Dimension (L × W × H): 6.73 × 6.89 × 2.52 (cm)
Weight: 0.19 (kg)
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QXG-2G2T-I225
Dual port 2.5GbE 4-speed Network card
Dimension (L × W × H): 8.13 × 6.89 × 2.52 (cm)
Weight: 0.23 (kg)
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QXG-2G4T-I225
Quad port 2.5GbE 4-speed Network card
Dimension (L × W × H): 10.46 × 6.89 × 2.41 (cm)
Weight: 0.24 (kg)
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QXG-5G1T-111C
QNAP 5GbE multi-Gig expansion card;Aquantia AQC111C;Gen2 x 1;low profile
Dimension (L × W × H): 14.50 × 19.00 × 5.20 (cm)
Weight: 0.20 (kg)
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QXG-5G2T-111C
QNAP dual port 5GbE multi-Gig expansion card;Aquantia AQC111C;Gen2 x 2;low profile
Dimension (L × W × H): 14.50 × 19.00 × 5.20 (cm)
Weight: 0.20 (kg)
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QXG-5G4T-111C
QNAP Quad port 5GbE multi-Gig expansion card;Aquantia AQC111C;Gen2 x 4;low profile
Dimension (L × W × H): 14.50 × 19.00 × 5.20 (cm)
Weight: 0.23 (kg)
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QXP-10G2U3A
Dual-port USB 3.2 Gen 2 10Gbps Type-A PCIe Gen 3 x2 Card, Asmedia ASM3142
Dimension (L × W × H): 8.96 × 6.89 × 1.40 (cm)
Weight: 0.09 (kg)
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QXP-W6-AX200 (EOL)
QNAP WiFi 6 (Intel AX200) PCIe wireless card w/ antenna & brackets for NAS; Giga-byte GC-WBAX200 QNAP Edition
Dimension (L × W × H): 5.50 × 15.00 × 21.50 (cm)
Weight: 0.32 (kg)
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USB-U31A2P01 (EOL)
USB 3.2 Gen 2 10Gbps Type-A Dual-port PCIe Card
Dimension (L × W × H): 11.30 × 18.50 × 5.20 (cm)
Weight: 0.17 (kg)
USB cabe is not included.
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TRX-10GSFP-SR-MLX
Mellanox MFM1T02A-SR SFP+ Optical Module for 10GBASE-SR
Dimension (L × W × H): 12.00 × 19.50 × 3.50 (cm)
Weight: 0.10 (kg)
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CAB-DAC15M-SFPP
SFP+ 10GbE twinaxial direct attach cable, 1.5M
Dimension (L × W × H): 1.00 × 24.00 × 29.50 (cm)
This 10GbE SFP+ network cable is designed for NAS models with an integrated 10GbE SFP+ LAN port or a 10GbE SFP+ network card.
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RAM-2GDR4A0-SO-2400
DDR type: DDR4(260PIN)
Capacity: 2GB
Spec: 256M X 16
Frequency: DDR4-2400
Form(PIN): 260PIN
Power Supply: 1.2V
Dram Organization: 256M*64
Temperature: 0℃~85℃
Environmental Regulation: RoHS
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RAM-4GDR4A0-SO-2666
DDR type: DDR4(260PIN)
Capacity: 4GB
Spec: 512M X 16
Frequency: DDR4-2666
Form(PIN): 260PIN
Power Supply: 1.2V
Dram Organization: 512M*64
Temperature: 0℃~85℃
Environmental Regulation: RoHS
