QNAP TS-451U 4-Bay SOHO Rackmount NAS Server

QNAP TS-451U 4-Bay SOHO Rackmount NAS Server

Brand QNAP
Model TS-451U-US

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Bhphotovideo QNAP TS-451U 4-Bay SOHO Rackmount NAS Server 577.01 $ Visit Store Website
Macmall QNAP TS-451U - NAS server - 4 bays - rack-mountable - SATA 6Gb/s - RAID 0, 1, 5, 6, 10, 5 hot spare - Gigabit Ethernet - iSCSI - 1U (TS-451U-US) 589.99 $ Visit Store Website


Dual-Core Intel Celeron 2.41 GHz (up to 2.58 GHz)
Installed: 1 GB DDR3L SDRAM (1 x 1 GB) Slots: 2 SODIMM (Maximum Capacity: 8 GB)
Flash Memory
512 MB
Drive Bays
4 x Hot-swappable and lockable bays
Drive Types Supported
3.5" or 2.5" SATA 6 Gb/s, SATA 3 Gb/s HDD or SSD* *The system is shipped without HDD.
Network Interface
2 x RJ-45 Gigabit Ethernet ports
LED Indicators
Status, LAN, USB, HDD 1 to 4
4 x USB 3.0 ports (rear) 1 x USB 2.0 port (front) 1 x HDMI 1 x Console
Power, USB one-touch-copy, and reset
Operating system
QTS 4.1 (embedded Linux)
Client OS Support
Windows XP, Vista, Windows 7 (32/64-bit), Windows 8 (32/64-bit), Windows Server 2003, 2008 R2, 2012, and 2012 R2 Apple Mac OS X Linux and UNIX
Storage Management
QNAP flexible Volume/LUN with thin provisioning and space reclaim RAID 0, 1, 5, 6, 10, 5+spare Global hot spare Supports storage pool Online volume expansion Online storage pool expansion Online RAID capacity expansion and online RAID level migration Storage expansion via a QNAP UX-1200U-RP/UX-800U-RP expansion unit 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 and network UPS support with SNMP management
Supported Browsers
Microsoft Internet Explorer 10+ Mozilla Firefox 8+ Apple Safari 4+ Google Chrome
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 File Station Subfolder permissions support for CIFS/SMB, AFP, FTP, and File Station
Multilingual Support
Chinese (Traditional and Simplified), Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese (Brazil), Romanian, Russian, Spanish, Swedish, Thai, and Turkish
Domain Authentication Integration
Microsoft Active Directory (AD) and Domain Controller support LDAP server, LDAP client Domain users login via CIFS/SMB, AFP, FTP, and File Station
myQNAPcloud Service
Private cloud storage and sharing Free host name registration (DDNS) Auto router configuration (via UPnP) Web-based file manager with HTTPS 2048-bit encryption CloudLink for remote access without complicated router setup myQNAPcloud connect for easy VPN connection (Windows VPN utility)
File System
Internal Drive: EXT4 External Drive: EXT3, EXT4, NTFS, FAT32, HFS+
TCP/IP (IPv4 & IPv6: Dual Stack) (not all services support IPv6) Jumbo frame support Proxy server (squid package available in app center) Proxy client 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 and Bonjour discovery USB Wi-Fi 802.11ac/a/n adapter support
Syncs files among multiple devices with SSL support Selective synchronization for syncing specific folders only Use team folders as a file center for greater team collaboration (Maximum sync tasks: 32) Shares files by links via email Policy settings for conflicted files and file type filter support Version Control: up to 64 versions Incremental synchronization for HDD space saving Supports Windows and Mac OS
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 certificates Instant alert via email, SMS, and beep
Web Administration
Smart toolbar and dashboard for neat system status display Smart fan control Dynamic DNS (DDNS) SNMP (v2 and v3) Resource monitor Network recycle bin for file deletion via CIFS/SMB, AFP, and File Station -Automatic Cleanup -File Type Filter Comprehensive logs (events and connection) Syslog client/server System settings backup and restore Restore to factory default Mobile App: Qmanager for remote system monitoring & management
Powerful All-in-one server
File Server
File sharing across Windows, Mac, and Linux/UNIX Windows ACL Advanced folder permission for CIFS/SMB, AFP, and FTP Shared folder aggregation (CIFS/SMB)
iSCSI target with multi-LUNs per target (Up to 256 targets/LUNs combined) Support for LUN mapping and masking Online LUN capacity expansion Support for SPC-3 persistent reservation Support for MPIO and MC/S iSCSI LUN backup, one-time snapshot, and restoration iSCSI connection and management by QNAP Windows Qfinder Virtual disk drive (via iSCSI initiator) Stack chaining master Maximum Number of Virtual Disk Drives: 8
FTP Server
FTP over SSL/TLS (explicit) FXP supported Passive ftp port range control
Alarm Buzzer
System warning
2 x quiet cooling 1.6" / 4.0 cm fans12 VDC
32 to 104°F (0 to 40°C)
Relative Humidity
0 to 95%
Form Factor
1RU rack mountable
Power Supply
Input: 100 to 240 VAC50/60 HzOutput: 250 W
Power Consumption
HDD Standby: 21.03 WIn Operation: 38.01 W
Dimensions (W x H x D)
17.28 x 1.73 x 19.65" (439.00 x 44.00 x 499.00 mm)
16.82 lb (7.63 kg)
Packaging Info
Package Weight
20.6 lb
Box Dimensions (LxWxH)
26.0 x 24.0 x 7.0"
Product Highlights
4 x 3.5"/2.5" SATA III Drive Bays
2.41 GHz Intel Celeron Dual-Core
2 x RJ-45 Gigabit Ethernet Ports
4 x USB 3.0 Ports
1 x HDMI Port
Easy-to-Use NAS Management Tools
QvPC Technology
Access/Use/Sync with Tablets/Smartphones
QTS 4.1 Operating System


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