Specifications

• Mfr Part Number: TS-253BE-4G-US
  
• Hardware:
  • CPU: Intel Celeron J3455 Processor (1.5GHz, Quad-Core)
  • Encryption Acceleration: AES-NI
  • Graphics: Intel HD Graphics 500
  • System Memory: 4GB DDR3L (1 x 4GB)
    
  • Memory Slot: 2 x DDR3L SODIMM slots
  • Drive Type: Hot-swappable 2 x 3.5"/2.5" SATA 6Gb/s HDD/SSD
    
  • USB: 5x USB 3.0 Type-A ports
    
  • PCIe Slot: 1x PCIe 2.0 x2 slot
    
  • HDMI Output: 2x HDMI v1.4b, up to 3840 x 2160, 30 Hz
    
  • LAN Port: 2x RJ45 Gigabit LAN port
  • Audio: Input - 2x 3.5mm microphone input jacks; Output - speaker, 3.5mm line out jack
  • LED Indicators: Status/Power, LAN, USB, Drives
  • Buttons: Power, USB copy, Reset, Capacitive touch buttons (select, enter)
    
  • IR sensor: Optional QNAP RM-IR004 remote control
    
  • Operating System: QTS 4.3.4 (embedded Linux)
• Network & Virtual Switch:
  • TCP/IP -  Dual Stack (IPv4 & IPv6)
  • Jumbo frame (failover, multi-IP settings, port trunking/NIC teaming)
    
  • DHCP server and client
  • USB Wi-Fi adapter
  • Virtual switch
    • Virtual switch editing in Virtualization Station
    • Combining virtual machines and containers in the same virtual switch
    • Network Address Translation (NAT)
    • Spanning Tree Protocol (STP)
    • Thunderbolt to Ethernet converter (T2E)
  • WirelessAP Station
• Security:
  • Network access protection with auto-blocking (SSH, Telnet, HTTP(S), FTP, CIFS/SMB, and AFP)
  • Host access control for shared folders (CIFS/SMB)
  • 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, and audio
  • 2-step verification
• Storage Management:
  • Storage space utilization monitoring
  • Flexible volumes and LUNs with thin provisioning and space reclaiming
  • Supported RAID types - RAID 0, 1, 5, 6, 10, JBOD, Single
  • RAID hot spare and global hot spare
  • RAID rebuild speed customization
  • Advanced secure data erase
  • Storage pools
  • Qtier Technology (automated storage tiering)
    • Automatic or scheduled data tiering
    • IO-aware auto tiering
    • Shared folder tiering on demand
  • Snapshots
    • Volume and LUN snapshots
    • Snapshot Dashboard
    • Snapshot Manager
    • Snapshot cloning
    • Snapshot Vault
    • Snapshot Replica
    • Unified Snapshot Directory
    • Support for Windows Previous Versions (CIFS/SMB)
    • Snapshot Agent for Microsoft Windows and VMware vSphere
  • Online volume expansion
  • Online storage pool expansion
  • Online RAID capacity expansion
  • Online RAID level migration
  • SMART data migration
  • Storage expansion using QNAP expansion units
  • JBOD enclosure roaming
  • SSD read-only or read-write cache
  • Bad block scan and hard drive S.M.A.R.T test
  • Bad block recovery and RAID recovery
  • Bitmap support
• File System:
  • Internal HDD: EXT4
  • External HDD: EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT
• Fan: 1x 7cm
• Power Supply: 65W AC adapter, 100 - 240V
  
• Power Consumption:
  • HDD sleep: 13.07 W
    
  • Typical Operation:  20.42W
• Dimensions(WxDxH): 4.13 x 8.90 x 6.61 inch / 105.0 x 226.0 x 168.0 mm
  
• Weight: 3.66 lbs / 1.66 kg