Specifications

• Mfr Part Number:  TS-251B-4G
• Hardware:
  • CPU: Intel® Celeron® J3355 dual-core 2.0 GHz processor (burst up to 2.5 GHz)
  • CPU Architecture:  64-bit x86
  • Graphic Processors: Intel® HD Graphics 500
  • System Memory: 4 GB SO-DIMM DDR3L (1 x 4 GB)
  • Maximum Memory: 8 GB (2 x 4GB)
  • Memory Slot: 2 x SO-DIMM DDR3L
  • Flash Memory: 4GB (Dual boot OS protection)
  • Drive Bay: 2 x 3.5-inch SATA 6Gb/s, 3Gb/s
  • Drive Compatibility: 3.5-inch SATA hard disk drives; 2.5-inch SATA hard disk drives; 2.5-inch SATA solid state drives
  • M.2 SSD Slot: Optional via a PCIe adapter
  • Gigabit Ethernet Port (RJ45): 1
  • 10 Gigabit Ethernet Port: Optional via PCIe expansion card
  • PCIe Slot: 1; Slot 1: PCIe Gen 2 x2
  • USB 2.0 port: 3
  • USB 3.0 port: 2
  • USB 3.1 Gen 2 (10Gbps) Port: Optional via a PCIe expansion card
  • IR Sensor: (RM-IR004)
  • HDMI Output: 1, HDMI 1.4b (up to 3840 x 2160 @ 30Hz)
  • Audio Input: 2 x 3.5mm dynamic microphone input jacks  (for amplifier or headphone amplifier)
  • LED Indicators: Power/Status, LAN, USB, HDD1-2
  • Buttons: Power, USB copy, Reset
• Networking:
  • TCP/IP (IPv4 & IPv6: Dual Stack)
  • 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)
  • 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)
    
  • AES 256-bit folder-based and volume-based encryptions which are validated by FIPS 140-2 CAVP (Cryptographic Algorithm Validation Program)
    
  • 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, 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 hard drive (EXT4)
  • External hard drive (EXT3, EXT4, NTFS, FAT32, HFS+, and exFAT) Note: To use exFat you must purchase an exFAT driver license from License Center.
• Form Factor: Tower
• Fan: 1 x 70mm, 12VDC
• Power Supply Unit: 65W adapter, 100-240V
• Power Consumption: Operating Mode, Typical: 15.25 W
• Dimensions (WxDxH): 6.61 x 4.13 x 8.9 inch
• Weight: 3.37 lbs