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7.75 lbs.(3.52 kg)
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Specifications Mfr Part Number: TS-251D-4G-US Hardware: CPU: Intel Celeron J4005 dual-core 2.0 GHz processor (burst up to 2.7 GHz) Encryption Acceleration System Memory: 4 GB SO-DIMM DDR4 (1 x 4 GB) Maximum Memory: 8GB (2x 4GB) Memory Slot: 2 x SO-DIMM DDR4 Flash Memory: 4GB (Dual boot OS protection) Drive Bay: 2 x 3.5-inch SATA 6Gb/s, 3Gb/s Gigabit Ethernet Port (RJ45): 1 5 Gigabit Ethernet Port (5G/2.5G/1G/100M): Expandable with an optional PCIe adapter 10 Gigabit Ethernet Port: Expandable with an optional PCIe adapter USB Port: 3x USB 2.0 Ports, 2x USB 3.2 Gen 1 port PCIe Slot: Slot 1: PCIe Gen 2 x4 LED Indicator: Status/Power, LAN, USB, HDD 1-2 Button: Power, Reset, USB copy System Warning: Buzzer Operating SystemQTS 4.4.1 (embedded Linux) : Network & Virtual Switch: TCP/IP: Dual stack (IPv4 and IPv6) Jumbo frame Port trunking（Link aggregation） DHCP server and client RADVD USB Wi-Fi adapter Note: This feature does not support ad hoc networks because of security considerations. Virtual switch Network Address Translation (NAT) Spanning Tree Protocol (STP) Thunderbolt to Ethernet converter (T2E) Software-Defined Switch mode Static Route NCSI (Network Connectivity Status Indicator) DDNS settings (Customize & Multiple Service) Security: Network access protection with auto-blocking - SSH, Telnet, HTTP(S), FTP, CIFS/SMB, 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 Importable SSL certiﬁcates Instant alert via E-mail, SMS, beep, and push service 2-step veriﬁcation Storage Management: Supported RAID types: RAID 0, 1, JBOD, Single RAID Hot Spare and Global Hot Spare RAID Rebuild Speed Customization Online RAID capacity expansion Online RAID level migration SSD RAID Over-provisioning Note: RAID 0 and JBOD Data RAID does not support Over-provisioning. SSD RAID Performance evaluation (with SSD Profiling Tool) SSD TRIM for RAID 0,1 Bitmap support Disk auto S.M.A.R.T. data migration Disk bad block scan and S.M.A.R.T test. Disk bad block recovery Disk secure data erase Ironwolf Health Management Storage pools Qtier Data Tiering Technology Automatic or scheduled data tiering IO-aware auto tiering Shared folder tiering on demand Flexible volumes and LUNs with thin provisioning and space reclaiming If the NAS has less than 4GB RAM, then the maximum volume capacity is 144TB. If the NAS has at least 4GB RAM, then the maximum volume capacity is 250TB. Online volume expansion Volume type conversion Volume shrink Storage space utilization Snapshots Volume and LUN snapshots Snapshot Dashboard Snapshot Manager Snapshot local restore and revert Snapshot Clone Snapshot Replica and Snapshot Vault Snapshot remote restore and revert Unified Snapshot Directory Support for Windows Previous Versions (CIFS/SMB) Snapshot Agent for Microsoft Windows and VMware vSphere Storage expansion using QNAP expansion units J BOD enclosure roaming SSD read-only and read-write cache SSD write-only cache File System: Internal HDD: EXT4 External HDD: EXT3, EXT4, NTFS, FAT32, HFS+, exFAT Form Factor: Tower Security Slot: Kensington security slot Fan: 1 x 70mm Power Supply Unit: External Power Adapter, 65W, 100-240V Dimensions (WxDxH): 4.13 x 8.90 x 6.61 inch Weight: 3.26 lbs ** This item is eligible for replacement only and is NON REFUNDABLE!! **
* Product descriptions and part numbers are subject to change, and may not reflect manufacturer product changes. Please check the manufacturer's website and use the item's manufacturer part number to find the most up to date product description.