Qnap TS-451U-US Nas Ts-451u-us 4bay 1u Celeron Dual Core 1gb Ddr3 2.5 3.5 Sata 2xgbe

Specifications

• Mfr Part Number: TS-451U-US
• Hardware:
  • CPU: Intel Celeron Processor (2.41GHz, Burst Up to 2.58GHz, Dual-Core)
  • Memory: 1GB DDR3L RAM, (expandable up to 8GB)
  • Flash Memory: 512MB
    
  • HDD Capacity: 4x 3.5" or 2.5" SATA3/SATA2 Hard Drive or SSD
  • HDD Tray: 4x Hot-swappable and lockable Trays
  • LAN Port: 2x Gigabit RJ45 Ethernet Ports
  • LED Indicators: Status, LAN, USB, HDD 1, HDD 2, HDD3, HDD4
    
  • USB: 3x USB 3.0 Ports (2 rear, 1 front), 2x USB 2.0 Ports (rear); USB UPS, etc
  • Buttons: Power, USB One-Touch-Copy, reset
  • Alarm Buzzer: System Warning
  • Operating System: QTS 4.1 (Embedded Linux)
• Networking:
  • 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 & Bonjour Discovery
  • USB Wi-Fi 802.11ac/a/n 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 Certificates
  • Instant Alert via E-mail, SMS, Beep
• 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
• File System:
  • Internal HDD: EXT4
  • External HDD: EXT3, EXT4, NTFS, FAT32, HFS+
• Backup Station:
  • Remote replication server (over rsync)
  • Real-time remote replication (RTRR) to another QNAP NAS 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 QNAP NAS Servers
  • Desktop Backup with QNAP NetBak Replicator for Windows
  • Apple Time Machine backup support
  • Data backup to multiple external storage devices
  • Synchronizes with cloud storage: Amazon S3, ElephantDrive, Symform, Dropbox, and Google Drive
  • Third party backup software support: Veeam backup & replication, Acronis True Image, Arcserve backup, emc retrospect, Symantec Backup Exec, etc.
• Form Factor: 1U Rackmount
  
• Fan: 2x 4cm 12V DC Quiet Cooling Fans
  
• Power Consumption:
  • HDD Standby: 21.03W
  • In Operation: 38.01W (with 4 x 2TB HDD installed)
• Power Supply: Input -100-240V, 50/60Hz; Output - 250W
  
• Dimensions (WxDxH): 17.28 x 19.65 x 1.73 inch / 439.0 x 499.0 x 44.0 mm
  
• Weight: 16.82 lbs / 7.63 kg