TS-351, TS-431P2, TS-451D2 Compare products

	TS-351 TS-351-4G TS-351-4G TS-351-2G	TS-431P2 TS-431P2-1G TS-431P2-1G TS-431P2-4G	TS-451D2 TS-451D2-4G TS-451D2-4G TS-451D2-2G

System Specification


CPU
CPU	Intel® Celeron® J1800 2-core/2-thread processor, burst up to 2.58 GHz Intel® Celeron® J1800 2-core/2-thread processor, burst up to 2.58 GHz	AnnapurnaLabs Alpine AL314 32-bit ARM® Cortex-A15 4-core 1.7GHz processor AnnapurnaLabs Alpine AL314 32-bit ARM® Cortex-A15 4-core 1.7GHz processor	Intel® Celeron® J4025 2-core/2-thread processor, burst up to 2.9 GHz Intel® Celeron® J4025 2-core/2-thread processor, burst up to 2.9 GHz
CPU Architecture
CPU Architecture	64-bit x86 64-bit x86	32-bit ARM 32-bit ARM	64-bit x86 64-bit x86
Graphic Processors
Graphic Processors	Intel® HD Graphics Intel® HD Graphics		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	, up to 1080P , up to 1080P
System Memory
System Memory	4 GB SODIMM DDR3L 2 GB SODIMM DDR3L	1 GB SODIMM DDR3L RAM 4 GB SODIMM DDR3 RAM	4 GB SODIMM DDR4 2 GB SODIMM DDR4
Maximum Memory
Maximum Memory	8 GB (2 x 4 GB) 8 GB (2 x 4 GB)	8 GB (1 x 8GB) 8 GB (1 x 8GB)	8 GB (2 x 4GB) 8 GB (2 x 4GB)
Memory Slot
Memory Slot	2 x SODIMM DDR3L ¹ 2 x SODIMM DDR3L ¹	1 x SODIMM DDR3L/DDR3 1 x SODIMM DDR3L/DDR3	2 x SODIMM DDR4 ² 2 x SODIMM DDR4 ²
Flash Memory
Flash Memory	512MB (Dual boot OS protection) 512MB (Dual boot OS protection)	512 MB (Dual boot OS protection) 512 MB (Dual boot OS protection)	4GB (Dual boot OS protection) 4GB (Dual boot OS protection)
Drive Bay
Drive Bay	3 x 3.5-inch SATA 6Gb/s, 3Gb/s ³ 3 x 3.5-inch SATA 6Gb/s, 3Gb/s ³	4 x 3.5-inch SATA 6Gb/s, 3Gb/s 4 x 3.5" SATA 6Gb/s, 3Gb/s	4 x 3.5-inch SATA 6Gb/s, 3Gb/s ⁴ 4 x 3.5-inch SATA 6Gb/s, 3Gb/s ⁴
Drive Compatibility
Drive Compatibility	3.5-inch SATA hard disk drives 2.5-inch SATA hard disk drives 2.5-inch SATA solid state drives ⁵ 3.5-inch SATA hard disk drives 2.5-inch SATA hard disk drives 2.5-inch SATA solid state drives ⁵	3.5-inch bays: 3.5-inch SATA hard disk drives 2.5-inch SATA hard disk drives 2.5-inch SATA solid state drives 3.5-inch bays: 3.5-inch SATA hard disk drives 2.5-inch SATA hard disk drives 2.5-inch SATA solid state drives	3.5-inch SATA hard disk drives 2.5-inch SATA hard disk drives 2.5-inch SATA solid state drives 3.5-inch SATA hard disk drives 2.5-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	2 x M.2 2280 NVMe 500 MB/s slots ⁶ 2 x M.2 2280 NVMe 500 MB/s slots ⁶
SSD Cache Acceleration Support
SSD Cache Acceleration Support	Drive bay 3 M.2 Slots 1 to 2 Drive bay 3 M.2 Slots 1 to 2

Connections


Gigabit Ethernet Port (RJ45)
Gigabit Ethernet Port (RJ45)	1 1	2 2	2 2
Jumbo Frame
Jumbo Frame
USB 2.0 port
USB 2.0 port	2 2
USB 3.2 Gen 1 port
USB 3.2 Gen 1 port	1 1	3 3	4 4
HDMI™ Output
HDMI™ Output	1, HDMI™ 1.4a (up to 1080p) 1, HDMI™ 1.4a (up to 1080p)		1, HDMI™ 2.0 (up to 4096 x 2160 @ 60Hz) 1, HDMI™ 2.0 (up to 4096 x 2160 @ 60Hz)
Audio Output
Audio Output	1 x built-in speaker, 1 x 3.5mm line out jack (for amplifiers or speakers) 1 x built-in speaker, 1 x 3.5mm line out jack (for amplifiers or speakers)

Appearance


Form Factor
Form Factor	Tower Tower	Tower Tower	Tower Tower
LED Indicators
LED Indicators	System Status, LAN, USB, HDD1~3, M.2 SSD1~2 System Status, LAN, USB, HDD1~3, M.2 SSD1~2	Power, Status, LAN, USB, HDD1-4 Power, Status, LAN, USB, HDD1-4	Power/Status, LAN, USB, HDD1-4 Power/Status, LAN, USB, HDD1-4
Buttons
Buttons	Power, Reset, USB Copy Power, Reset, USB Copy	Power, Reset, USB Auto Copy Power, Reset, USB Auto Copy	Power, USB copy, Reset Power, USB copy, Reset
Dimensions (HxWxD)
Dimensions (HxWxD)	5.59 × 5.91 × 10.24 inch 5.59 × 5.91 × 10.24 inch	6.65 × 6.3 × 8.62 inch 6.65 × 6.3 × 8.62 inch	6.51 × 6.3 × 8.64 inch 6.51 × 6.3 × 8.64 inch
Weight (Net)
Weight (Net)	3.62 lbs 3.62 lbs	4.43 lbs 4.43 lbs	4.61 lbs 4.61 lbs
Weight (Gross)
Weight (Gross)	5.93 lbs 5.93 lbs	7.72 lbs 7.72 lbs	6.66 lbs 6.66 lbs

Others


Operating Temperature
Operating Temperature	0 - 40 °C (32°F - 104°F) 0 - 40 °C (32°F - 104°F)	0 - 40 °C (32°F - 104°F) 0 - 40 °C (32°F - 104°F)	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)	-20 - 70°C (-4°F - 158°F) -20 - 70°C (-4°F - 158°F)	-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)	5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F) 5-95% RH non-condensing, wet bulb: 27˚C (80.6˚F)	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, 100 - 240V 65W adapter, 100 - 240V	External Power Adapter,90W, 100-240V External Power Adapter,90W, 100-240V	External Power Adapter, 90W, AC 100-240 V External Power Adapter, 90W, AC 100-240 V
Power Consumption: Disk Standby Mode
Power Consumption: Disk Standby Mode	18.56 W 18.56 W	10.62 W 21.3 W
Power Consumption: Operating Mode, Typical
Power Consumption: Operating Mode, Typical	26.22 W ⁷ 26.22 W ⁷	23.72 W ⁷ 23.72 W ⁷
Fan
Fan	1 x 90mm, 12VDC 1 x 90mm, 12VDC	1 x 120mm, 12VDC 1 x 120mm, 12VDC	1 x 120mm, 12VDC 1 x 120mm, 12VDC
System Warning
System Warning	Voice prompts or Buzzer Voice prompts or Buzzer	Buzzer Buzzer	Buzzer Buzzer
Kensington Security Slot
Kensington Security Slot
Standard Warranty
Standard Warranty	2 2	2 2	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 256) (max 256)	(256) (256)	(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 10
RAID 10
RAID 6
RAID 6
RAID 5+ Spare
RAID 5+ Spare
RAID 5
RAID 5
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
SSD Over-provisioning
SSD Over-provisioning

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	4096 4096	4096 4096
Max. Number of User Groups
Max. Number of User Groups	512 512	512 512	512 512
Max. Number of Share Folders
Max. Number of Share Folders	512 512	512 512	512 512
Max. Number of Concurrent Connections (CIFS) - with Max. Memory
Max. Number of Concurrent Connections (CIFS) - with Max. Memory	1500 1500	400 400	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	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	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