Test: QNAP HS-251 NAS

Operating System
QTS 4.1 (embedded Linux)

Supported Client OS

• Windows XP and Windows Server 2003 onward, Apple Mac OS X onward, Linux & UNIX

Supported Browsers

• Chrome, IE 10 onward, Firefox, Safari

Multilingual Support

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

File System

• Internal hard drive: EXT4
• External hard drive: EXT4, EXT3, NTFS, FAT32, HFS+

Networking

• TCP/IP: IPv4 & IPv6
• Dual Gigabit NICs with jumbo frame (failover, multi-IP settings, port trunking/NIC teaming )
• Service binding based on network interfaces
• Proxy client, proxy server
• DHCP client, DHCP server
• Protocols: CIFS/SMB,AFP (v3.3), NFS(v3), FTP, FTPS, SFTP, TFTP, HTTP(S), Telnet, SSH, iSCSI, SNMP, SMTP, and SMSC
• UPnP& Bonjour discovery
• USB Wi-Fi adapter support

Security

• Network access protection with auto-blocking: SSH, Telnet, HTTP(S), FTP, CIFS/SMB, AFP
• CIFS host access control for shared folders
• FIPS 140-2 validated AES 256-bit volume-based data encryption*
• AES 256-bit external drive encryption*
• Importable SSL certi?cate
• Instant alert via E-mail, SMS, and beep

Storage Management

• Online Volume Expansion
• Single Disk, JBOD, RAID 0, 1
• Online RAID Capacity Expansion
• Online RAID Level Migration
• Bad block scan and hard drive S.M.A.R.T.
• Bad block recovery
• RAID recovery
• Bitmap support

Power Management

• Wake on LAN
• Internal hard drive standby mode
• Scheduled power on/off
• Automatic power on after power recovery
• USB andnetwork UPS support with SNMP management
• System sleep mode (S3)

Access Right Management

• Batch users creation
• Import/export users
• User quota management
• Local user access control for CIFS, AFP, FTP, and WebDAV
• Application access control for Photo Station, Music Station, Video Station, and Multimedia Station
• Subfolder permissions support for CIFS/SMB, AFP, FTP, and File Station

myQNAPcloud Service

• Private cloud storage and sharing with myQNAPcloud id (qid)
• Free host name registration (DDNS)
• Auto router (via UPnP) con?guration
• Web-based file manager with HTTPS 2048-bit encryption
• Cloudlink for remote access without complicated router setup
• myQNAPcloud connect for easy VPN connection (WindowsVPN utility)

Qsync

• Syncs files among multiple devices with SSL support
• Selective synchronization for syncing specific folders only
• Share team folder as a file center for team collaboration
• Shares files by links via e-mail
• Policy settings for conflicted files and file type filter support
• Version control: up to 64 versions.
• Incremental synchronization for HDD space saving
• Supports Windows&MacOS

Web Administration

• Multi-window, multi-tasking based system management
• Personalized desktop
• Smart toolbar and dashboard for neat display on system status
• Login screen with personalized photo-wall style •Smart fan control
• Dynamic DNS (DDNS)
• SNMP (v2 & v3)
• Resource monitor
• Network Recycle Bin for File Deletion via CIFS/SMB, AFP and File Station
  - Automatic Cleanup
  - File Type Filter
• Comprehensive logs (events & connection)
• Syslog client/server
• System settings backup and restore
• Restore to factory default
• Mobile app: Qmanager for remote system monitoring & management

File Server

• File Sharing across Windows, Mac, and Linux/UNIX
• Windows ACL
• Advanced folder permission for CIFS/SMB, AFP, FTP
• Shared folder aggregation (CIFS/SMB)

FTP Server

• FTP over SSL/TLS (Explicit)
• FXP supported
• Passive ftp port range control

File Station

• Supports ISO Mounting (Up to 256 ISO Files)
• Support thumbnail display of multimedia files
• Supported share download link and upload link
• Drag-n-drop Files via Chrome and Firefox Browsers
• Photo, music, and video preview and playback withhardware acceleratedtranscoding
• File Compression (ZIP or 7z)

Transcode Management

• Transcodevideo files to 240p, 360p, 480p, 720p and 1080p resolution
• Automatic video transcoding for watched folders
• Hardware accelerated transcoding support

Backup Station

• Remote replication server (over rsync)
• Real-time remote replication (RTRR) to another QNAPNAS or FTP server
• Works as both RTRR server & client with bandwidth control
• Real-time & scheduled backup
• Encryption, compression, file filter, and transfer rate limitation
• Encrypted replication between QNAPNASservers
• Desktop backup with QNAPNetBakReplicator for Windows
• Apple Time Machine backup support
• Data backup to multiple external storage devices
• Synchronizes with cloud storage: Amazon S3, ElephantDrive, Symform, Dropbox, and GoogleDrive
• Third party backup software support: Veeam backup & replication, AcronisTrue Image, Arcserve backup, emc retrospect, Symantec Backup Exec, etc.

Cloud Backup Station

• Amazon S3
• Amazon Glacier
• Webdev-based cloud storage
• Microsoft Azure
• Open Stack

Print Server

• Maxnumber of printers: 3
• Print job display and management
• IP-based and domain name-based privilege control

Photo Station

• Show photos in thumbnails, list, timeline, or folder view
• Supports virtual/smart album
• Validity control for sharing albums
• Tags photos with text, color, and rating
• Slideshows with background music and different transition effects
• Animated thumbnails for videos
• Geotags photos and display them on Google maps
• Shares slideshows link to social websites or through email
• Supports Facebook friends login
• Supports modification on photo taken date

Music Station

• Plays or shares music collections with web browser
• Automatic classification via Media Library
• Internet radio streaming (MP3)
• Up to 8 music alarms
• Mobile app: Qmusic for music playing and management

iTunes Server

• Audio and Video Sharing for Windows& Mac iTunes

Video Station

• Show photos in thumbnails, list, timeline, or folder view
• Supports virtual/smart collection
• Validity control for sharing collections
• Tags videos with text, color, and rating
• Animated thumbnails for videos
• Shares video collection link to social websites or through email
• Sorting videos automatically into defined classifications
• Display movie information from IMDB

DLNA Server

• Supports DLNA/UPnP TVs and players such as PlayStation 3 and Xbox 360
• Video and audio on-the-?y transcoding

Mobile App

• Qfile: iOS, Android Phone, window phone
• Qfile HD: iPad version
• Qmanager: iOS, Android Phone
• Qmusic: iOS, Android Phone
• Qremote: iOS, Android Phone
• Qget: Android Phone
• Vmobile: iOS, iPad, Android Phone

AirPlay

• Streams videos, photos and music from NAS to Apple TV via Q?le or QAirPlay's web-based controller

Digital TV Station

• DVB-T Digital TV Live View, Recording, and Playback
• Supports up to 2 USB TV Tuners
• Electronic Programming Guide (EPG) with Scheduled Recording

Note: The availability of DVB-T broadcasting and EPG may vary depending on geographic locations.

Download Station

• PC-less BT, FTP/FTPS, and HTTP/HTTPS download (up to 500 Tasks)
• BT download with Magnet Link and PT support
• Scheduled download and bandwidth control
• RSS subscription and download (broadcatching)
• Bulk download with wildcard settings
• BT search
• Proxy support for BT download
• PC utility: Qget for downloads browsing and management
• Mobile app: Qget for downloads browsing and management

HD Station

• Playbacks videos, music, photos on tv with xbmc via hdmi output
• Watch various online contents such as Youtube, Flickr, Picasa, Shoutcast, etc.
• Web browser
• Supports USBU.S. keyboard and mouse
• Supports QNAPQremote app and the official XBMC remote app

Note: The playback and quality of some video ?les may be affected due to the current CPU and GPU's decoding capability.

Up to 7.1 channel audio passthrough can be supported

Surveillance Station

• Supports over 2,100 ip cameras
• Includes 2 free camera licenses, up to 24 camera channels via additional license purchase
• Instant playback to check the recent event
• Online editing to edit cameras when live view
• Visual aid by e-map
• Playback and speed control by shuttle bar
• Video preview on playback timeline
• Intelligent video analytics (iva) for advanced video search
• Surveillance client for Mac
• Mobile surveillance app: vmobile (iOS and Android)
• Mobile recording app: vcam (iOS and Android)

Notes Station

• Take notes of everything on your private cloud
• Collaborate notes with multi users
• Support graphical editor for note editing
• Integrate with NAS file system: insert attachment or image from NAS file system
• Support event calendar and to-do list
• Support image editor: a easy way to highlight the focus in your image
• Support note publishing with a single link
• Support key word search
• Provide Chrome Extension: Notes Station Clipper
  • Clip web page contentto your note

VPN Server

• Secure remote access: PPTP &OpenVPN VPN services
• Max number of clients: 30

Domain Authentication Integration

• Microsoft Active Directory (AD)
• LDAP server, LDAP client
• Domain users login via CIFS/SMB, AFP, FTP, and File Station

App Center

• More than 100 official and community software add-ons (ex: Dropbox, Google Drive Sync, McAfee, WordPress, HappyGet II, etc.)

Virtualization Station

• Support one Virtual Machine (VM) creating to run an operating system such asWindows, Linux, Unix.
• VM import from Virtual Appliances
• VM export into a virtual appliance in OVF / QVM format
• VM clone
• VM snapshot
• HTML5 based shared remote console

Signage Station

• Support dynamic content includes video, image,music, and text message
• Support multi users collaboration
• Support searching keywords
• Support email and social network sharing
• Support design software - iArtist Lite
• Support account authority management
• Support various browser playback ( Chrome, Firefox, IE, Safari)
• Support most viewed, latest released and different categories content list

(1). Not all services are supported.

*The data encryption functions may not available in accordance with the legislative restrictions of some countries.