QNAP TS-873U-4G-US AMD R-Series RX-421ND 2.1GHz/ 4GB DDR4/ 6GbE/ 8SATA3/ USB3.0/ 8-Bay 2U Rackmount NAS for SMB


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  • Mfr Part Number: TS-873U-4G-US
  • Hardware:
    • CPU: AMD R-Series RX-421ND processor (2.1GHz Clock Speed, 3.4GHz Max Turbo, Quad Core)
    • Hardware Encryption Engine: Yes, AES-NI
    • System Memory: 4GB DDR4 (1x 4GB)
    • Memory Slots: 4x UDIMM DDR4
    • Flash Memory: 512MB DOM
    • Drive Type: 8x 3.5″/2.5″ SATA 6Gb/s HDDs/SSDs
    • M.2 SSD Slot: 2x M.2 2280 SATA 6Gb/s SSDs
    • LAN Port: 2x 10 Gigabit SFP+ Ports (via a preinstalled PCIe network card), 4x Gigabit RJ45 LAN Ports
    • USB: 2x USB 3.0 Ports, 4x USB 2.0 Ports
    • PCIe Slot: 1x PCI-Express 3.0 x4 Slot (pre-installed with a dual-port 10GbE SFP+ LAN card)
    • LED Indicator: Status/Power, LAN, USB, Drive 1 – 8
    • Button: Power/Status, Reset
    • Maintenance Port: 1x 3.5mm console port
    • Operating System: QTS 4.3 (embedded Linux)
  • Networking:
    • TCP/IP: Dual stack (IPv4 and IPv6)
    • Jumbo frame (failover, multi-IP settings, port trunking, and NIC teaming)
    • Service binding based on network interfaces
    • Squid web caching proxy
    • Proxy client
    • DHCP server and client
    • 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 adapter
  • Security:
    • Network access protection with auto-blocking (SSH, Telnet, HTTP(S), FTP, CIFS/SMB, and AFP)
    • Host access control for shared folders (CIFS)
    • 140-2 validated AES 256-bit volume-based and shared folder data encryption (FIPS)
    • 256-bit external drive encryption (AES)
    • Importing of SSL certificates from Let’s Encrypt
    • Instant alerts through email, SMS, push service, audio, and LCD panel
    • 2-step verification
  • Storage Management:
    • Storage space utilization monitoring
    • Flexible volumes and LUNs with thin provisioning and space reclaiming
    • Disk volume types: RAID 0,1,5,6,10, 5/6/10+spare, JBOD, single
    • Qtier Technology (automated storage tiering)
    • Snapshots
    • Volume and LUN snapshots
      • Snapshot Manager
      • Snapshot cloning
      • Snapshot Vault
      • Snapshot Replica
      • Unify Snapshot Directory
      • Support for previous Windows versions (SMB)
      • Snapshot Agent for Microsoft Windows and VMware vSphere
    • Bad block scan and hard drive S.M.A.R.T.
    • Bad block recovery and RAID recovery
    • Bitmap support
  • File System:
    • Internal HDD: EXT4
    • External HDD: EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT
  • Form Factor: 2U Rackmunt
  • Fan: 2x 70 mm Fans (12V DC)
  • Power Supply: 250W, 100-240V AC, 50/60 Hz
  • Dimensions (WxDxH): 18.98 x 21.02 x 3.50 inch / 482.0 x 534.0 x 89.0 mm
  • Weight: 21.72 lbs / 9.85 kg

Additional information

Weight32 lbs