Overview

 

Features

Upgraded Hardware for an Upgraded Personal Cloud Experience

The TS-251A is powered by an advanced 14nm Intel Celeron dual-core 1.6GHz processor that features low TDP (only 6 watts) and can automatically burst up to 2.48GHz. Coupled with dual-channel 2/4GB DDR3L-1600 dual-channel RAM (upgradable to 8GB), dual Gigabit LAN ports, and SATA 6Gb/s, the TS-251A can deliver up to 211.88 MB/s throughput for optimizing mission-critical tasks while still being energy efficient. The TS-251A also features Intel AES-NI hardware-accelerated encryption to deliver up to 209.13 MB/s throughput with AES-NI encryption for both full NAS volume and shared folders, boosting system performance & security while ensuring the safety of sensitive business data stored in the NAS.

 

Tested in QNAP Labs. Figures may vary by environment.

Test Environment:
NAS: TS-251A
OS: QTS 4.2.2
Volume type: RAID 1; 2 x Seagate 1TB ST1000NM0033 HDDs: NAS and PCs are connected.
Client PCs:
Intel Core i7-4770 3.40GHz CPU; DDR3L 1600Hz 16GB; WD 1TB WD10EZEX;
Intel Gigabit CT( MTU 1500 ) ; Windows 7 Professional 64bit SP1 & Windows 8.1 Pro 64-bit
IOMeter configuration: Multiple PCs via switch. Transferring 32GB file continuously to NAS for 3 minutes. Block size: 64KB for SMB2.0

The Ultimate Hybrid NAS Featuring Direct Access via USB

The TS-251A features an innovative USB QuickAccess port that allows you to complete the first-time installation and setup of your TS-251A without requiring network connectivity. The files and data stored on the TS-251A can also be directly accessed by usingQfinder Pro* and a USB 3.0 A-Male to Micro B-Male cable or a USB 2.0 Micro B cable**. Furthermore, you can assign access rights to users for different folders to prevent unauthorized access to important files.

The TS-251A innovatively re-defines what NAS can do by providing a USB QuickAccess port for direct access, along with its native NAS transmission mode over the network allowing users to multi-task with maximized productivity.

Superior 4K video transcoding

Featuring advanced 8th-generation Intel® HD Graphics, the TS-251A supports 4K H.264 hardware decoding and delivers superior real-time 4K and 1080p video transcoding to convert videos to universal formats that can be smoothly played on PCs, mobile devices and Smart TVs*. With offline transcoding, even when you can only connect using a low-speed Internet connection, you can still enjoy smooth video playback via File Station, Video Station, and the Qfile mobile app by selecting a pre-rendered lower resolution video. The TS-251A also allows you to set a dedicated folder for automatic video transcoding.

* Supported video formats depend on the hardware and software specifications of the devices. Playback capability and quality may vary due to factors including the original file formats/quality, hardware and software limitations, and output devices.

Enjoy media freely with multi-zone multimedia controls

Use a TS-251A as a multi-zone multimedia system to fill every corner of your house with your choice of media. You can centrally manage and stream photos, music and videos stored on the TS-251A to HDMI, DLNA®, Apple TV®, Chromecast™* , Roku®, Amazon® Fire TV or to the devices connected to the TS-251A (music streaming only) through Bluetooth® & USB. With Plex Media Server, the TS-251A is transformed into a powerful streaming machine.

*To stream multimedia via Chromecast, you must first install the Multimedia Extension Pack from the QTS App Center.

QTS – Simple and powerful

Thanks to the intuitive user interface of QTS, your NAS experience is smarter, smoother and spectacular. Its modern flat design streamlines loading times, and the intelligent desktop allows you to find desired functions quickly, create desktop shortcuts or group shortcuts, monitor important system information on a real-time basis, and open multiple application windows to run multiple tasks concurrently, bringing greater working efficiency. QTS breaks the barriers of devices, platforms, and geography to bring optimized cloud experiences and incorporates advanced features including volume/LUN snapshots, remote connections to public cloud services in File Station, multi-zone multimedia system, and more.

File synchronization across devices and clouds

Qsync turns your TS-251A into a safe, large-capacity data center for file synchronization. Any file uploaded to the TS-251A will be made available for all linked devices, such as computers, laptops or mobile devices. Qsync is especially useful for frequent travelers to manage files and always have the most up-to-date files on different devices. Qsync provides multiple ways of file synchronization and group file sharing, greatly enhancing the flexibility of team projects and collaboration. It also supports centralized configuration, and allows you to remotely erase the Qsync folder on a lost device to avoid data breaches, and even restore it after you have retrieved the device.

Cross-platform file sharing, centralized data storage

The TS-251A supports SMB/CIFS, NFS, and AFP protocols for file sharing across Windows®, Mac®, Linux®/UNIX® networks. Data, logs and ISO images of CDs and DVDs can be centrally stored on the TS-251A and protected by an integrated antivirus solution. The Windows AD® and LDAP services enable system administrators to configure user permissions by using an existing Windows AD server, LDAP server or the built-in LDAP service.

 

Centralize backup, restoration and synchronization with Hybrid Backup Sync

Hybrid Backup Sync consolidates backup, restoration and synchronization functions into a single QTS application for you to easily transfer your data to local or remote QNAP NAS, to remote servers and to cloud storage spaces as a comprehensive data storage and disaster recovery plan. You can synchronize files between the TS-251A and cloud storage in real time - including Amazon Drive, Google Drive, Dropbox, Microsoft OneDrive, Yandex Disk, and Box, and back up files to Amazon S3, Amazon Glacier, Microsoft Azure, Google Cloud Storage, OpenStack Swift and WebDAV cloud services. Hybrid Backup Sync can detect sparse files to avoid backing up unnecessary data, and supports file compression to save storage space. There are flexible settings for concurrent file processing and multi-threaded data transfer by splitting large files into smaller parts, greatly increasing the file transfer rate for greater work efficiency.

Restore files with Snapshot for Volume & LUN

QTS Storage Manager features an easy-to-use web-based snapshot tool to easily backup and restore data on the TS-251A back to any point of time in the event of data loss. You can take snapshots for volumes and LUN (up to 64 snapshots per volume/LUN and maximum 256 snapshots per NAS), efficiently replicate volume/LUN snapshots via Snapshot Replica to remote servers by copying only the changes made, and quickly clone a volume /LUN snapshot as a local volume without interrupting current system operations. You can even set up the system to automatically take a snapshot of the volume before backup via RTRR/rsync, even if files are opened.

Qsirch - a smarter, faster way to search

The TS-251A supports Qsirch, a proprietary search engine for quick file searching. In addition to previewing thumbnails, content abstract and keyword hints, Qsirch allows you to search through all of the .eml files stored on the TS-251A and use customized search criteria* such as date, size, sender and recipient. Qsirch even remembers your search history allowing you to quickly navigate to files you've previously searched for. You can also use the Google Chrome™ extension - Qsirch Helper - to search for files on your NAS when using Google Search™. Qsirch is a huge productivity boost that greatly reduces the time spent looking for files on the NAS, allowing you to focus on other tasks.

QmailAgent: a mailroom center for your private cloud

QmailAgent is an online email client that helps you manage multiple email accounts, allowing you to access all of your emails and to easily switch between different accounts. It provides complete functionality for composing, reading and organizing emails. You can even attach files, photos and documents from the TS-251A when composing emails. QmailAgent also allows iOS® and Android™ users to quickly check multiple email accounts with mobile devices, and to browse & send emails using the QmailAgent on their TS-251A. You can also use QmailAgent together with Qsirch, which supports powerful email search functions to search through all of the .eml files stored on the TS-251A to make managing and searching through massive quantities of emails much easier.

QTS-Linux dual systems for IoT applications

The TS-251A’s QTS-Linux dual systems are based on QNAP’s advanced virtualization technologies. The revolutionary architecture of the TS-251A enables users to not only to enjoy the extraordinary QTS operating system and download rich apps from QTS App Center but also to develop or utilize IoT packages for Linux®. The TS-251A supports Ubuntu and allows users to develop and install various IoT packages on demand and centrally store the data on the TS-251A, providing a secure private storage and IoT development solution. Simply plug in a keyboard, mouse and HDMI monitor to the TS-251A, and use the Linux Station as if you were using a PC*. You can also operate Ubuntu in Linux Station as a remote desktop via web browser for instant management**.

* The remote desktop function does not support remote audio output.

** Linux Station supports both Ubuntu versions 14.04 and 16.04 for users to choose from. Linux Station requires a minimum 4GB RAM.

Storage for hosting virtual machines and containerized applications

Virtualization Station allows you to host virtual machines (VM) on the TS-251A and access them via a web browser or VNC. Virtualization Station supports multiple operating systems, fast VM creation, VM backup & restoration, VM import/export, snapshot, and Device Management for centrally managing VM. Virtualization Station allows the TS-251A and VMs to share the same LAN port. No longer constrained by physical network performance, high-speed Virtual Switches greatly increases data transfer between VMs as well as between VMs and NAS through the internal interface. You can also download VMs on demand from online VM markets and import them to the TS-251A without any complex procedures.

The TS-251A also features the game-changing container technology for server virtualization with Container Station. It exclusively integrates LXC and Docker lightweight virtualization technologies, allowing you to operate multiple isolated Linux systems on the TS-251A as well as download apps from the built-in Docker Hub Registry. Container Station now also provides the QIoT Containers platform to help you quickly structure your IoT environment and deployment in your private cloud.

Comprehensive surveillance solution providing 24/7 security

Surveillance Station is a professional network surveillance Video Management System (VMS) that offers a user-friendly management interface, over 3,000 compatible IP camera models, and expandable IP camera channel licenses. It supports real-time monitoring, video & audio recording and playback with a wide range of customizable settings. You can also install the Vmobile app on your iOS or Android devices to manage monitored channels anytime and anywhere to safeguard your office environment, or install the Vcam mobile app to turn your device into a network camera to instantly record to your TS-251A. The TS-251A includes 2 free IP camera channels and you can expand up to 32 channels by purchasing additional licenses.

Use NAS to expand NAS capacity with Virtual JBOD

Besides using physical storage expansion enclosures, there is an additional option to expand NAS storage capacity. QNAP VJBOD (Virtual JBOD) is network-based JBOD that allows you to expand the storage of a QNAP NAS by using unused storage from other QNAP NAS units. You can mount this storage space to the TS-251A as virtual disks and create virtual storage pools and volumes for NAS functions such as creating and reverting snapshots, indexing multimedia files into the media library, and even creating iSCSI LUNs. VJBOD supports 10GbE/40GbE connections and port trunking (link aggregation with multiple LAN ports) that increase the performance and reliability of your VJBOD storage

Connect a QNAP expansion enclosure to expand storage capacity easily

The TS-251A supports online capacity expansion for archiving rapidly-growing data by connecting a QNAP expansion enclosure. With the QNAP scale-up solution, the raw storage capacity can be expanded on demand, making the TS-251A an ideal file center with large storage capacity, especially useful for data-intensive applications.

With the support of QJBOD Express (JBOD enclosures roaming)*, you can just connect a large capacity QNAP expansion enclosure to the TS-251A, and migrate data to another NAS through the JBOD enclosure without needing a network connection.

The maximum raw storage capacity available by connecting a QNAP expansion enclosure:

Turbo NAS Model

RAID Expansion Enclosure

No. of RAID Expansion Enclosure

Total HDD No. (NAS + Enclosure)

Max. Raw Capacity (TB)**

TS-251A

UX-800P

1

10

80

UX-500P

1

7

56

 Helpdesk: Submit technical support request and get help quickly

If you encounter technical problems or have suggestions for improving our products you can directly contact our support staff using the Helpdesk app. This app allows you to directly send feedback, questions, and technical support requests to our support team. Helpdesk features remote support, allowing our support team to help you quickly resolve issues by remotely connecting to your NAS over a secure 256-bit SSL encrypted connection. Helpdesk also provides a range of online resources, including online tutorials, frequently-asked questions, compatibility lists and the QNAP Helpdesk Knowledgebase. Whether you are a new or experienced NAS user, you can quickly find answers to your questions by browsing through these resources.

Enjoy an exclusive karaoke experience with OceanKTV

OceanKTV is the first NAS-based karaoke application and allows you to create a quality karaoke experience at home or in the office. The TS-251A offers high-capacity storage for accommodating up to thousands of 1080p karaoke songs. The TS-251A comes with a 3.5 mm microphone jack and can transmit audio to your amplifier using HDMI or the 3.5 mm Line out port. Simply attach an HDMI display to the TS-251A and start singing with OceanKTV. The experience can be managed using the OceanKTV app in QTS or by using the OceanKTV mobile app on your phone or tablet. More than a NAS, the TS-251A is a karaoke machine for singing entertainment. Enjoy alone or with your friends!

Note: The NAS must have at least 4GB RAM to run OceanKTV

Additional features

The TS-251A supports various applications for home offices as an all-in-one Turbo NAS with cost-efficiency.

FTP Server

Web Server

RADIUS Server

VPN Client

Printer Server

Surveillance Station

Specifications

HARWARE

Ordering P/N

TS-251A-2G

Processor

14nm Intel Celeron N3060 dual-core 1.6GHz (up to 2.48GHz)

Hardware Encryption Accleration

AES-NI

System Memory

2GB DDR3L (2 x 1GB)

Maximum Memory

8GB

Memory Slot

2 x SODIMM DDR3L (For dual-DIMM configurations, you must use a pair of identical DDR3L modules.)

Flash Memory

4GB, pre-loaded with QTS system

Drive Type

2 x 3.5"/2.5" SATA 6Gb/s HDDs/SSDs

GbE LAN

2 x Gigabit RJ45 LAN port

USB Port

3 x USB 3.0 ports (Front: 1, Rear:2)

SD Card Reader

USB QuickAccess

(USB 3.0 Micro-B); USB cable is not included

HDMI

1, max. resolution 3840 x 2160 @ 30Hz

Audio Input

3.5mm Microphone Input jack (for dynamic microphone)

Audio Output

3.5mm Line Out jack (for ampliers or speakers)

LED Indicator

Status/Power, USB, HDD 1, HDD 2

Button

Power/Status, USB one-touch-backup, reset

IR Receiver

, supports QNAP RM-IR002 and MCE-compliant remote controls

Others

Kensington security slotsystem maintenance port

Dimension

169 x 102 x 219 mm

6.65 x 4.02 x 8.62 inch (HxWxD)

Weight

Net: 1.28 kg (2.82 lbs)

Gross: 2.64 kg (5.82 lbs)

Operating Temperature

0-40C

Relative Humidity

5~95% RH non-condensing, wet bulb: 27C

Noise Level

18.3 dB (A)

Refer to ISO 7779 ; Maximum HDD loaded ; Bystander Position ; Average data from 1 meter in front of operating NAS

Power Consumption

System sleep: 0.72W

HDD standby7.9W

In operation16.2W

(with 2 x 2TB HDDs)

Power

65W AC power adapter, 100-240V AC

Fan

1 x 7cm system fan (12V DC)

SOFTWARE

Operating System

QTS 4.2 (embedded Linux)

Network & Virtual Switch

1. DHCP client, DHCP server

2. USB Wi-Fi Adapter Support

3. Virtual Switch

Supported Client OS

1. Windows 7, Windows 8, Windows 10, Windows Server 2003/2008 R2/2012/2012R2

2. Apple Mac OS X, Linux & UNIX

Access Right Management

1. Batch users creation, import/export users

2. User quota management

3. Local user access control for CIFS, AFP, FTP, and WebDAV

4. Application access control for Photo Station, Music Station, Video Station, and File Station

5. Subfolder permissions support for CIFS/SMB, AFP, FTP, and File Station

Supported Browsers

1. Microsoft Internet Explorer 10+ , Google Chrome, Apple Safari 7+, Mozilla Firefox

Domain Authentication Integration

1. Microsoft Active Directory (AD) & Domain Controller support

2. LDAP server, LDAP client

3. Domain users login via CIFS/SMB, AFP, FTP, and File Station

Multilingual Support

1. Chinese (Traditional & Simplified), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (Brazil), Romanian, Russian, Spanish, Swedish, Thai, Turkish

myQNAPcloud Service

1. Private cloud storage and sharing

2. Free host name registration (DDNS)

3. Optional myQNAPcloud SSL certificates (DDNS)

4. Auto router configuration (via UPnP)

5. Web-based file manager with HTTPS 2048-bit encryption

6. CloudLink for remote access without any complicated router setup

7. myQNAPcloud connect for easy VPN connection (Windows VPN utility)

File System

1. Internal Hard Drive: EXT4

2. External Hard Drive: EXT3, EXT4, NTFS, FAT32, HFS+

Qsync

1. Sync files across multiple devices with SSL secure connection

2. Selective synchronization for only syncing specific folders

3. Use team folders as a file center for greater team collaboration (maximum sync tasks:32)

4. Shares files by links via e-mail

5. Policy settings for conflicting files and file type filter support

6. Version control: up to 64 versions.

7. Supports central configuration mode

8. Supports remote erase/restore

9. Supports Windows & Mac OS

Networking

1. TCP/IP (IPv4 & IPv6: Dual Stack)1

2. Dual Gigabit NICs with jumbo frame (failover, multi-IP settings, port trunking/NIC teaming)

3. Service binding based on network interfaces

4. Squid Proxy server & Proxy client

5. Protocols: CIFS/SMB, AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, and SMSC

6. UPnP & Bonjour Discovery

Web Administration

1. Multi-window, multi-tasking based system management

2. Dynamic DNS (DDNS)

3. SNMP (v2 & v3)

4. Resource monitor

Security

1. Network access protection with auto-blocking: SSH, Telnet, HTTP(S), FTP, CIFS/SMB, AFP

2. CIFS host access control for shared folders

3. FIPS 140-2 validated AES 256-bit volume-based and shared folder data encryption 2

4. AES 256-bit external drive encryption2

5. Importable SSL certificates

6. Instant alerts via email, SMS, beep, and push service

7. 2-step verification

Network recycle bin for file deletion via CIFS/SMB, AFP, and File Station

1. Comprehensive logs (events & connection)

2. Syslog client/server

3. Mobile app: Qmanager for remote system monitoring & management

Storage Management

1. Storage Space Utilization monitoring

2. QNAP flexible Volume/LUN with thin provisioning and space reclaim3

3. Disk volume types

RAID 0,1, JBOD, single

4. Supports storage pools

5. Supports volume/LUN snapshots, up to 256 per system (4GB System RAM required)3

6. Online volume expansion

7. Online storage pool expansion

8. Online RAID capacity expansion and online RAID level migration

9. SMART data migration

10. Storage expansion via a QNAP UX-500P/UX- 800P expansion unit

11. JBOD enclosure roaming

12. SSD read-only/read-write cache

File Server

1. File sharing across Windows, Mac, and Linux/ UNIX

2. Windows ACL

3. Advanced folder permissions for CIFS/SMB, AFP, FTP

4. Shared folder aggregation (CIFS/SMB)

Power Management

1. Wake on LAN

2. Internal hard drive standby mode

3. Scheduled power on/off

4. Automatic power on after power recovery

5. USB and network UPS support with SNMP management

6. System sleep mode (S3)

FTP Server

1. FTP over SSL/TLS (Explicit)

2. FXP support

HD (HybridDesk) Station

1. Watch various online contents

2. Web browsers (Chrome, Firefox)

3. Supports international keyboards, input and mouse

4. Supports user login permissions

5. A variety of applications are available including Skype, Plex Home Theater, and more

6. Up to 7.1 channel audio passthrough is supported

Note: The playback and quality of some video files may be affected by the system's CPU and GPU decoding abilities.

File Station

1. Supports mounting cloud drives (such as Google Drive, Dropbox, Microsoft OneDrive, Amazon Drive, Yandex Disk and Box).

2. Supports mounting remote shared folders through FTP, WebDAV or Microsoft networking (SMB/CIFS)

3. Supports opening documents via Office Online, Google Docs or Chrome Extension (Edit Office files in Google Docs, Sheets, and Slides)

4. Supports ISO Mounting (Up to 256 ISO Files)

5. Drag-n-drop Files via Chrome and Firefox Browsers

6. Photo, music, and video preview and playback with hardware-accelerated transcoding

7. File Compression (ZIP or 7z)

8. Supports displaying subtitles (*.SRT, UTF-8 format)

- Video seeking support for video playback during on-the-fly transcoding

- Supports slideshow playback in media viewer

9. Mobile App: Qfile for file browsing and Management

Linux Station

1. Use your NAS as a Ubuntu PC using the NAS HDMI output.

2. Download and use a variety of applications from the Ubuntu Software Center.

3. Supports remote desktop to monitor and access Ubuntu remotely.

4. An open source software platform for developers.

Note: The NAS requires at least 4GB RAM and Container Station must be installed.

Transcode Management

1. Transcode video files to 240p, 360p, 480p, 720p and 1080p resolution

2. Automatic video transcoding for watched folders

3. Hardware accelerated transcoding support

4. Embed subtitles into videos for background Transcoding

Virtualization Station

1. Supports Virtual Machine (VM) creation to run operating systems such as Windows, Linux, Unix and Android

2. Supports VM import and export, cloning & snapshot, backup and restore

3. VM console can be displayed via HDMI output - QVM

4. HTML5-based shared remote console

5. Supports three different networking modes: Isolated, External-only and Bridged

Backup Station

1. Remote replication server (over rsync)

2. Real-time remote replication (RTRR) to another QNAP NAS, FTP or CIFS/SMB server

3. Works as both RTRR server & client with bandwidth control

4. Real-time & scheduled backup

5. Backup versioning for RTRR

6. Snapshot support for RTRR/Rsync

7. Encryption, compression, file filter, and transfer rate limitation

8. Desktop backup with QNAP NetBak Replicator for Windows

9. Apple Time Machine backup support

10. Data backup to multiple external storage devices

11. Third party backup software support: Veeam backup & replication, Acronis True Image, Arcserve backup, emc retrospect, Symantec Backup Exec, etc.

Container Station

1. Supports LXC and Docker

2. Download applications from the built-in Docker Hub Registry

3. Supports one-click installation, container export/import & console mode

4. Supports two network modes (NAT and host)

5. Supports auto-start containers

6. Supports downloading Docker certificates

7. Supports adding private registries

Cloud Drive Sync

1. Multiple cloud account management like Google Drive, Dropbox, OneDrive, and hubiC

2. Supports multiple cloud accounts

3. Concurrent job execution and multi-threaded data transfer

4. Per-account bandwidth throttling

Qsirch

1. Supports full-text search in real-time

2. Bar chart to show data distribution

3. Supports previews for photos, music, videos, Gmail, PDF .etc

4. Show search results using thumbnails or a list

5. Supports search Chrome extension

Cloud Backup Station

1. Amazon S3 Plus (including Amazon S3), Glacier

2. Google Cloud Storage

3. WebDAV-based cloud storage

4. Microsoft Azure

5. OpenStack Swift

iSCSI (IP SAN)

1. iSCSI target with multi-LUNs per target (Up to 256 targets/LUNs combined)

2. Supports LUN mapping & masking

3. Online LUN capacity expansion

4. Support for SPC-3 persistent reservation

5. Supports MPIO & MC/S

6. iSCSI LUN backup, one-time snapshot, and restoration

7. iSCSI connection and management by QNAP Windows Qfinder

8. Virtual disk drive (via iSCSI initiator)

9. Stack chaining master

10. Max No. of virtual disk drives: 8

Print Server

1. Max number of printers: 3

2. Supports Internet Printing Protocol

3. Print job display and management

4. IP-based and domain name-based privilege Control

Surveillance Station

1. Supports over 3,000 IP cameras

2. Includes 2 free camera licenses, up to 32 camera channels by purchasing additional licenses

3. Instant playback to check recent events

4. Visual aid by e-map

5. Playback and speed control using the shuttle bar

6. Video preview on playback timeline

7. Intelligent video analytics (IVA) for advanced video searching

8. Surveillance client for Mac

9. Mobile surveillance app: Vmobile (iOS and Android)

10. Mobile recording app: Vcam (iOS and Android)

Photo Station

1. Show photos by thumbnails, list, timeline, or folder view

2. Tag photos with text, colors, and ratings

3. Slideshows with background music and different transition effects

4. Geotag photos and display them on Google maps

5. Supports uploading photos/videos to Picasa, Flickr, Weibo, YouTube

6. Supports face detection (with the Photo Station Extension)

7. Supports PDF to image conversion (with the Photo Station Extension)

8. Supports Facebook friends login

VPN Server

1. Secure remote access: PPTPL2TP/IPsec & OpenVPN VPN services

2. Max number of clients: 45 (15 clients for each protocol)

Music Station

1. Play or share music via web browser

2. Supports changing album covers via Google search or by uploading photos.

3. Internet radio (MP3)

4. Up to 8 music alarms

5. Mobile app: Qmusic for music streaming and Management

VPN Client

1. Supported VPN protocols: PPTP and OpenVPN services

2. PPTP Authentication: PAP, CHAP, MS-CHAP, MS-CHAPv2

3. PPTP Encryption: None, AES 40/128 bit, AES 256 bit

4. OpenVPN Encryption: None, AES 40/128 bit, AES 256 bit

5. Transmission package monitor

6. OpenVPN port control & link compression

iTunes Server

1. Audio and video sharing for Windows & Mac iTunes

DLNA Server

1. Supports DLNA/UPnP TVs and players such as PlayStation 4 and Xbox One

2. Support CUE indexing file for APE, FLAC audio format.

3. Video and Audio On-the-fly Transcoding

Video Station

1. Show photos by thumbnails, list, timeline, or folder view

2. Tag videos with text, color, and ratings

3. Share video links to social websites or through email

4. Display movie information and posters from Internet sources or user-uploaded files

5. Supports displaying subtitles (*.SRT,*.ASS, *.SSA), online searching and downloading of subtitles as well as importing subtitle files

6. Supports Facebook friends login

7. Mobile app: Qvideo for online video browsing and management

OceanKTV

1. Use the NAS as a karaoke machine.

2. Display songs by artists, languages, and favorites.

3. Enhance the experience with effects such as tuning echo, key, or applause

4. Control the playlist with a mobile app.

5. Supports keyboard and remote control (RM-RF001/ RM-IR002)

AirPlay & Chromecastk

1. Streams videos, photos and music from NAS to Apple TV or Chromecast via File Station, Music Station, Photo Station, Video Station or mobile app (Qfile, Qmusic, Qphoto or Qvideo).

Note: The Media Streaming add-on app must be installed from the QTS App Center.

Qfinder Pro with Storage Plug & Connect

1. Creating and mapping shared folders by QNAP Windows Qfinder Pro

2. Creation of and connection to iSCSI target/LUN

Download Station

1. PC-less BT, FTP/FTPS, and HTTP/HTTPS, Thunder, FlashGet and qqdl download (up to 500 Tasks)

2. The maximum number of concurrent downloads: 90 (30 BT/PT, 30 HTTP, 30FTP downloads)

3. BT download with search, Magnet Link and PT support

4. Scheduled download and bandwidth control

5. RSS subscription and download (broadcatching)

6. Proxy support for BT download

7. Mobile app: Qget for downloads browsing and Management

App Center

1. Over 100 official and community software add-ons such as Q'center, Signage Station, Notes Station

1 Not all IPv6 services are supported.

2 Data encryption functions may be unavailable in accordance with the legislative restrictions of some countries.

3 This feature may vary by model.

4 DRM-protected content is not supported.

Designs and specifications are subject to change without notice.

Package Content

TS-251A

Ethernet cable x 2

Quick installation guide (QIG)

Power cord x 1

Flat head screw x 8 (for 3.5" HDD)

Flat head screw x 6 (for 2.5 HDD)

IR Remote Control: RM-IR002

No additional files, specification sheets, guides or documentation found for product.

Warranty: 24 Month Return To Base

Full manufacturers warranty details are available at the manufacturers web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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