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TS-251D

TS-251D

TS-251D-4G
  • TS-251D-4G
  • TS-251D-2G

System Specification
CPU
CPU Intel® Celeron® J4025/J4005 2-core/2-thread processor, burst up to 2.9/2.7 GHz Intel® Celeron® J4025/J4005 2-core/2-thread processor, burst up to 2.9/2.7 GHz
CPU Architecture
CPU Architecture 64-bit x86 64-bit x86
Graphic Processors
Graphic Processors Intel® HD Graphics 600 Intel® HD Graphics 600
Floating Point Unit
Floating Point Unit
Encryption Engine
Encryption Engine (AES-NI) (AES-NI)
Hardware-accelerated Transcoding
Hardware-accelerated Transcoding
System Memory
System Memory 4 GB SODIMM DDR4 (1 x 4 GB) 2 GB SODIMM DDR4 (1 x 2 GB)
Maximum Memory
Maximum Memory 8 GB (2 x 4GB) 8 GB (2 x 4GB)
Memory Slot
Memory Slot 2 x SODIMM DDR4 1 2 x SODIMM DDR4 1
Flash Memory
Flash Memory 4GB (Dual boot OS protection) 4GB (Dual boot OS protection)
Drive Bay
Drive Bay 2 x 3.5-inch SATA 6Gb/s, 3Gb/s 2 2 x 3.5-inch SATA 6Gb/s, 3Gb/s 2
Drive Compatibility
Drive Compatibility 3.5-inch SATA hard disk drives

2.5-inch SATA solid state drives 3.5-inch SATA hard disk drives

2.5-inch SATA solid state drives
Hot-swappable
Hot-swappable (Not supported M.2 SSD) (Not supported M.2 SSD)
M.2 Slot
M.2 Slot Optional via a QM2 PCIe adapter Optional via a QM2 PCIe adapter
SSD Cache Acceleration Support
SSD Cache Acceleration Support

Connections
Gigabit Ethernet Port (RJ45)
Gigabit Ethernet Port (RJ45) 1 3 1 3
5 Gigabit Ethernet Port (5G/2.5G/1G/100M)
5 Gigabit Ethernet Port (5G/2.5G/1G/100M) Expandable with an optional PCIe adapter Expandable with an optional PCIe adapter
10 Gigabit Ethernet Port
10 Gigabit Ethernet Port Expandable with an optional PCIe adapter Expandable with an optional PCIe adapter
Jumbo Frame
Jumbo Frame
PCIe Slot
PCIe Slot 1

Slot 1: PCIe Gen 2 x4 4 1

Slot 1: PCIe Gen 2 x4 4
USB 2.0 port
USB 2.0 port 3 3
USB 3.2 Gen 1 port
USB 3.2 Gen 1 port 2 2
USB 3.2 Gen 2 (10Gbps) Port
USB 3.2 Gen 2 (10Gbps) Port Optional via a PCIe expansion card Optional via a PCIe expansion card
IR Sensor
IR Sensor (Optional QNAP RM-IR004 remote control) (Optional QNAP RM-IR004 remote control)
HDMI™ Output
HDMI™ Output 1, HDMI™ 2.0 1, HDMI™ 2.0

Appearance
Form Factor
Form Factor Tower Tower
LED Indicators
LED Indicators Power/Status, LAN, USB, HDD1-2 Power/Status, LAN, USB, HDD1-2
Buttons
Buttons Power, USB copy, Reset Power, USB copy, Reset
Dimensions (HxWxD)
Dimensions (HxWxD) 168 × 105 × 226 mm 168 × 105 × 226 mm
Weight (Net)
Weight (Net) 1.48 kg 1.48 kg
Weight (Gross)
Weight (Gross) 2.58 kg 2.58 kg

Others
Operating Temperature
Operating Temperature 0 - 40 °C (32°F - 104°F) 0 - 40 °C (32°F - 104°F)
Storage Temperature
Storage Temperature -20 - 70°C (-4°F - 158°F) -20 - 70°C (-4°F - 158°F)
Relative Humidity
Relative Humidity 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F) 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)
Power Supply Unit
Power Supply Unit 65W adapter (12VDC), 100-240VAC 65W adapter (12VDC), 100-240VAC
Power Consumption: Disk Standby Mode
Power Consumption: Disk Standby Mode 8.08 W 8.08 W
Power Consumption: Operating Mode, Typical
Power Consumption: Operating Mode, Typical 15.25 W 5 15.25 W 5
Fan
Fan 1 x 70mm 1 x 70mm
System Warning
System Warning Buzzer Buzzer
Kensington Security Slot
Kensington Security Slot
Standard Warranty
Standard Warranty 2 2

Networking
Port Trunking / Link Aggregation
Port Trunking / Link Aggregation
Network Service Discovery (UPnP & Bonjour)
Network Service Discovery (UPnP & Bonjour)
Virtual LAN (VLAN)
Virtual LAN (VLAN)
Service Binding Based on Network Interfaces
Service Binding Based on Network Interfaces

Encryption
AES 256-bit Volume-based Encryption
AES 256-bit Volume-based Encryption
AES 256-bit Folder Encryption
AES 256-bit Folder Encryption
External Drive Encryption
External Drive Encryption
Hardware Encryption Engine (Not available in certain countries)
Hardware Encryption Engine (Not available in certain countries)

Snapshot Protection
Snapshot
Snapshot (max 1024) (max 1024)

Storage Management
RAID Recovery
RAID Recovery
Online RAID Capacity Expansion
Online RAID Capacity Expansion
Online RAID Level Migration
Online RAID Level Migration
RAID 1
RAID 1
RAID 0
RAID 0
JBOD
JBOD
Single Disk
Single Disk
Global Hot Spare
Global Hot Spare
Storage Pool
Storage Pool
SSD Caching
SSD Caching
iSCSI Target
iSCSI Target
iSCSI LUN Snapshot/Backup
iSCSI LUN Snapshot/Backup
Thin-provisioned volume
Thin-provisioned volume

Virtualization
Container Station
Container Station
Virtualization Station
Virtualization Station
Linux Station (RAM of NAS >= 4GB)
Linux Station (RAM of NAS >= 4GB)

Privilege
Domain Controller
Domain Controller

Software Application
Wake on LAN (WOL)
Wake on LAN (WOL)

Sharing Capacity
Max. Number of Users
Max. Number of Users 4096 4096
Max. Number of User Groups
Max. Number of User Groups 512 512
Max. Number of Share Folders
Max. Number of Share Folders 512 512
Max. Number of Concurrent Connections (CIFS) - with Max. Memory
Max. Number of Concurrent Connections (CIFS) - with Max. Memory 1500 1500

Supported Languages
Language
Language English, German, French, Italian, Spanish, Polish, Swedish, Danish, Norwegian, Finnish, Russian, Japanese, Korean, Dutch, Czech, Traditional Chinese, Simplified Chinese, Turkish, Hungarian, Romanian, Thai, Portuguese/Brazil, Greek English, German, French, Italian, Spanish, Polish, Swedish, Danish, Norwegian, Finnish, Russian, Japanese, Korean, Dutch, Czech, Traditional Chinese, Simplified Chinese, Turkish, Hungarian, Romanian, Thai, Portuguese/Brazil, Greek

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