Comparison results

DS1817+ DS1817
Hardware Specifications
CPU
CPU Model Intel Atom C2538 Annapurna Labs Alpine AL-314
CPU Architecture 64-bit 32-bit
CPU Frequency Quad Core 2.4 GHz Quad Core 1.7 GHz
Hardware Encryption Engine
Hardware Encryption Engine (AES-NI)
Memory
System Memory 2/8 GB DDR3 4 GB DDR3L
Memory Module Pre-installed 2GB (1 x 2GB) / 8GB (2 x 4GB) 4GB (1 x 4GB)
Total Memory Slots 2 2
Memory Expandable up to 16 GB (8 GB x 2) 8 GB (4 GB x 2)
Storage
Drive Bays 8 8
Maximum Drive Bays with Expansion Unit 18 18
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
Maximum Internal Raw Capacity 96 TB (12 TB drive x 8) (Capacity may vary by RAID types) 96 TB (12 TB drive x 8) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units 216 TB (96 TB + 12 TB drive x 10) (Capacity may vary by RAID types) 216 TB (96 TB + 12 TB drive x 10) (Capacity may vary by RAID types)
Maximum Single Volume Size
  • 108 TB
  • 108 TB
Hot Swappable Drive
External Ports
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support) 2 (with Link Aggregation / Failover support)
RJ-45 10GbE LAN Port 2 (with Link Aggregation / Failover support)
USB 3.0 Port 4 2
eSATA Port 2 2
PCIe
PCIe Expansion
  • 1 x Gen2 x8 slot (x4 link)
Add-in-card support
Notes DS1817+ with M2D17 can only support M.2 SATA SSD. M.2 NVMe/AHCI PCIe SSD is not supported.
File System
Internal Drives
  • Btrfs
  • EXT4
  • EXT4
External Drives
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
Notes
  • exFAT Access is purchased separately in Package Center.
  • exFAT Access is purchased separately in Package Center.
Appearance
Size (Height x Width x Depth) 166 mm x 343 mm x 243 mm
157 mm x 340 mm x 233 mm
Weight 6.0 kg
5.31 kg
Others
System Fan 120 mm x 120 mm x 2 pcs 120 mm x 120 mm x 2 pcs
Fan Speed Mode
  • Cool Mode
  • Quiet Mode
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
Brightness adjustable front LED indicators
Power Recovery
Noise Level* 22.2 dB(A)
24.2 dB(A)
Scheduled Power On/Off
Wake on LAN/WAN
Power Supply Unit / Adapter 250W
250W
AC Input Power Voltage 100V to 240V AC 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase 50/60 Hz, Single Phase
Power Consumption* 61.5 W (Access)
31.6 W (HDD Hibernation)
59.1 W (Access)
26.4 W (HDD Hibernation)
British Thermal Unit 156.55 BTU/hr (Access)
86.09 BTU/hr (HDD Hibernation)
201.66 BTU/hr (Access)
90.08 BTU/hr (HDD Hibernation)
Environment Temperature
Operating Temperature 5°C to 40°C (40°F to 104°F) 5°C to 40°C (40°F to 104°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F) -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH 5% to 95% RH
Certification
  • FCC Class B
  • CE Class B
  • BSMI Class B
  • FCC Class B
  • CE Class B
  • BSMI Class B
Warranty 3 Year Hardware Warranty 3 Year Hardware Warranty
DSM Specifications
Storage Management
Maximum Internal Volume Number 512 256
Maximum iSCSI Target Number 32 32
Maximum iSCSI LUN 256 256
iSCSI LUN Clone/Snapshot, Windows ODX
SSD Read/Write Cache (White Paper)
SSD TRIM
Supported RAID Type
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID Migration
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
Volume Expansion by Adding a HDD
  • Synology Hybrid RAID
  • RAID 5
  • RAID 6
  • JBOD
  • Synology Hybrid RAID
  • RAID 5
  • RAID 6
  • JBOD
Global Hot Spare Supported RAID Type
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
File Sharing Capacity
Maximum Local User Accounts 2048 2048
Maximum Local Groups 256 256
Maximum Shared Folder 512 256
Maximum Shared Folder Sync Tasks 8 4
Maximum Concurrent CIFS/AFP/FTP Connections 512(2GB) / 2048(8GB) 1024
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
High Availability Manager
Log Center
Syslog Events per Second 800 400
Virtualization
VMware vSphere 6 with VAAI
Windows Server 2012
Windows Server 2012 R2
Citrix Ready
OpenStack
Add-on Packages (learn more about the complete add-on package list)
Antivirus by McAfee (Trial)
Central Management System
Chat
Maximum Users 1500 800
Notes
  • The number of concurrent HTTP connections for Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • The number of concurrent HTTP connections for Chat was configured to the maximum.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server
Maximum Number of Concurrently Connected Devices 512 (2GB) / 2000 (8GB) 1024
Maximum Number of Concurrently Connected Devices (with RAM expansion) 2000 1200
Maximum Number of Synced Files (btrfs) 1,000,000 / single file reaction time 827 (2GB) / 872 (8GB) ms
Maximum Number of Synced Files (ext4) 1,000,000 / single file reaction time 533 (2GB) / 512 (8GB) ms 500,000 / single file reaction time 763 ms
Notes
  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time. For more information on file processing capability, please refer to the reaction time for file processing.
  • File reaction time refers to the preparation time required for other devices to start downloading a 1KByte file from a Synology NAS after the file has been added to the NAS. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.
  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time. For more information on file processing capability, please refer to the reaction time for file processing.
  • File reaction time refers to the preparation time required for other devices to start downloading a 1KByte file from a Synology NAS after the file has been added to the NAS. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.
Document Viewer
Download Station
Maximum Concurrent Download Tasks 80 50
exFAT Access (optional)
MailPlus / MailPlus Server
Free Email Accounts 5 (Licenses required for additional accounts)
Recommended MailPlus Client Number Up to 90(btrfs)/100(ext4)
Maximum Server Performance 825,000 emails per day, approx. 25.18 GB
Media Server
DLNA Compliance
Office
Maximum Users 400 150
Maximum Simultaneous Editing Users 80 40
Notes
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Snapshot Replication
Maximum Snapshots per Shared Folder 1024
Maximum Snapshots of all Shared Folder 65536
Surveillance Station
Maximum IP cam (Licenses required) 40 (including 2 Free License) (See All Supported IP Cameras) 30 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)* 1200 (2GB RAM) / 1200 (8GB RAM) FPS @ 720p (1280x720)
900 (2GB RAM) / 1080 (8GB RAM) FPS @ 1080p (1920×1080)
320 (2GB RAM) / 480 (8GB RAM) FPS @ 3M (2048x1536)
270 (2GB RAM) / 280 (8GB RAM) FPS @ 5M (2591x1944)
120 (2GB RAM) / 160 (8GB RAM) FPS @ 4K (3840x2160)
900 FPS @ 720p (1280x720)
480 FPS @ 1080p (1920×1080)
300 FPS @ 3M (2048x1536)
250 FPS @ 5M (2591x1944)
Total FPS (H.265)* 1200 (2GB RAM) / 1200 (8GB RAM) FPS @ 720p (1280x720)
1200 (2GB RAM) / 1200 (8GB RAM) FPS @ 1080p (1920×1080)
560 (2GB RAM) / 1120 (8GB RAM) FPS @ 3M (2048x1536)
300 (2GB RAM) / 760 (8GB RAM) FPS @ 5M (2591x1944)
200 (2GB RAM) / 480 (8GB RAM) FPS @ 4K (3840x2160)
Total FPS (MJPEG)* 540 (2GB RAM) / 760 (8GB RAM) FPS @ 720p (1280x720)
200 (2GB RAM) / 400 (8GB RAM) FPS @ 1080p (1920×1080)
150 (2GB RAM) / 280 (8GB RAM) FPS @ 3M (2048x1536)
90 (2GB RAM) / 200 (8GB RAM) FPS @ 5M (2591x1944)
480 FPS @ 720p (1280x720)
300 FPS @ 1080p (1920×1080)
250 FPS @ 3M (2048x1536)
200 FPS @ 5M (2591x1944)
Video Station
Video Transcoding Group 1 - Type 1 (See more) Group 1 - Type 2 (See more)
Maximum Transcoding Channel Number
  • 1 channel, 30 FPS @ 1080p(1920×1080), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
  • 1 channel, 30 FPS @ 720p (1280x720), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
Virtual Machine Manager
Maximum Virtual DSM Number (Licenses required) 4 (including 1 Free License) (Learn more)
VPN Server
Maximum Connections 20 15
Environment & Packaging
Environment RoHS Compliant RoHS Compliant
Packaging Content
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
  • Main Unit X 1
  • Welcome Note X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
Optional Accessories
  • Surveillance Device License Pack
  • 8GB (4GB x 2) DDR3 RAM Module Kit
  • 16GB (8GB x 2) DDR3 RAM Module Kit
  • Expansion Unit: DX517 X 2
  • VS360HD
  • VS960HD
  • Synology Ethernet Adapter E10G15-F1
  • Synology Ethernet Adapter E10G17-F2
  • Synology M2D17 M.2 SSD adapter card
  • Surveillance Device License Pack
  • 4GB DDR3 RAM Module
  • Expansion Unit: DX517 X 2
  • VS360HD
  • VS960HD
Hardware Specifications
CPU
CPU Model
DS1817+ Intel Atom C2538
DS1817 Annapurna Labs Alpine AL-314
CPU Architecture
DS1817+ 64-bit
DS1817 32-bit
CPU Frequency
DS1817+ Quad Core 2.4 GHz
DS1817 Quad Core 1.7 GHz
Hardware Encryption Engine
DS1817+
DS1817
Hardware Encryption Engine (AES-NI)
DS1817+
DS1817
Memory
System Memory
DS1817+ 2/8 GB DDR3
DS1817 4 GB DDR3L
Memory Module Pre-installed
DS1817+ 2GB (1 x 2GB) / 8GB (2 x 4GB)
DS1817 4GB (1 x 4GB)
Total Memory Slots
DS1817+ 2
DS1817 2
Memory Expandable up to
DS1817+ 16 GB (8 GB x 2)
DS1817 8 GB (4 GB x 2)
Storage
Drive Bays
DS1817+ 8
DS1817 8
Maximum Drive Bays with Expansion Unit
DS1817+ 18
DS1817 18
Compatible Drive Type* (See all supported drives)
DS1817+
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
DS1817
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
Maximum Internal Raw Capacity
DS1817+ 96 TB (12 TB drive x 8) (Capacity may vary by RAID types)
DS1817 96 TB (12 TB drive x 8) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units
DS1817+ 216 TB (96 TB + 12 TB drive x 10) (Capacity may vary by RAID types)
DS1817 216 TB (96 TB + 12 TB drive x 10) (Capacity may vary by RAID types)
Maximum Single Volume Size
DS1817+
  • 108 TB
DS1817
  • 108 TB
Hot Swappable Drive
DS1817+
DS1817
External Ports
RJ-45 1GbE LAN Port
DS1817+ 4 (with Link Aggregation / Failover support)
DS1817 2 (with Link Aggregation / Failover support)
RJ-45 10GbE LAN Port
DS1817+
DS1817 2 (with Link Aggregation / Failover support)
USB 3.0 Port
DS1817+ 4
DS1817 2
eSATA Port
DS1817+ 2
DS1817 2
PCIe
PCIe Expansion
DS1817+
  • 1 x Gen2 x8 slot (x4 link)
DS1817
Add-in-card support
DS1817+
DS1817
Notes
DS1817+ DS1817+ with M2D17 can only support M.2 SATA SSD. M.2 NVMe/AHCI PCIe SSD is not supported.
DS1817
File System
Internal Drives
DS1817+
  • Btrfs
  • EXT4
DS1817
  • EXT4
External Drives
DS1817+
  • Btrfs
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
DS1817
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+
  • exFAT*
Notes
DS1817+
  • exFAT Access is purchased separately in Package Center.
DS1817
  • exFAT Access is purchased separately in Package Center.
Appearance
Size (Height x Width x Depth)
DS1817+ 166 mm x 343 mm x 243 mm
DS1817 157 mm x 340 mm x 233 mm
Weight
DS1817+ 6.0 kg
DS1817 5.31 kg
Others
System Fan
DS1817+ 120 mm x 120 mm x 2 pcs
DS1817 120 mm x 120 mm x 2 pcs
Fan Speed Mode
DS1817+
  • Cool Mode
  • Quiet Mode
DS1817
  • Cool Mode
  • Quiet Mode
Easy Replacement System Fan
DS1817+
DS1817
Brightness adjustable front LED indicators
DS1817+
DS1817
Power Recovery
DS1817+
DS1817
Noise Level*
DS1817+ 22.2 dB(A)
DS1817 24.2 dB(A)
Scheduled Power On/Off
DS1817+
DS1817
Wake on LAN/WAN
DS1817+
DS1817
Power Supply Unit / Adapter
DS1817+ 250W
DS1817 250W
AC Input Power Voltage
DS1817+ 100V to 240V AC
DS1817 100V to 240V AC
Power Frequency
DS1817+ 50/60 Hz, Single Phase
DS1817 50/60 Hz, Single Phase
Power Consumption*
DS1817+ 61.5 W (Access)
31.6 W (HDD Hibernation)
DS1817 59.1 W (Access)
26.4 W (HDD Hibernation)
British Thermal Unit
DS1817+ 156.55 BTU/hr (Access)
86.09 BTU/hr (HDD Hibernation)
DS1817 201.66 BTU/hr (Access)
90.08 BTU/hr (HDD Hibernation)
Environment Temperature
Operating Temperature
DS1817+ 5°C to 40°C (40°F to 104°F)
DS1817 5°C to 40°C (40°F to 104°F)
Storage Temperature
DS1817+ -20°C to 60°C (-5°F to 140°F)
DS1817 -20°C to 60°C (-5°F to 140°F)
Relative Humidity
DS1817+ 5% to 95% RH
DS1817 5% to 95% RH
Certification
DS1817+
  • FCC Class B
  • CE Class B
  • BSMI Class B
DS1817
  • FCC Class B
  • CE Class B
  • BSMI Class B
Warranty
DS1817+ 3 Year Hardware Warranty
DS1817 3 Year Hardware Warranty
DSM Specifications
Storage Management
Maximum Internal Volume Number
DS1817+ 512
DS1817 256
Maximum iSCSI Target Number
DS1817+ 32
DS1817 32
Maximum iSCSI LUN
DS1817+ 256
DS1817 256
iSCSI LUN Clone/Snapshot, Windows ODX
DS1817+
DS1817
SSD Read/Write Cache (White Paper)
DS1817+
DS1817
SSD TRIM
DS1817+
DS1817
Supported RAID Type
DS1817+
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
DS1817
  • Synology Hybrid RAID
  • Basic
  • JBOD
  • RAID 0
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
RAID Migration
DS1817+
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
DS1817
  • Basic to RAID 1
  • Basic to RAID 5
  • RAID 1 to RAID 5
  • RAID 5 to RAID 6
Volume Expansion with Larger HDDs
DS1817+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
DS1817
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
Volume Expansion by Adding a HDD
DS1817+
  • Synology Hybrid RAID
  • RAID 5
  • RAID 6
  • JBOD
DS1817
  • Synology Hybrid RAID
  • RAID 5
  • RAID 6
  • JBOD
Global Hot Spare Supported RAID Type
DS1817+
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
DS1817
  • Synology Hybrid RAID
  • RAID 1
  • RAID 5
  • RAID 6
  • RAID 10
File Sharing Capacity
Maximum Local User Accounts
DS1817+ 2048
DS1817 2048
Maximum Local Groups
DS1817+ 256
DS1817 256
Maximum Shared Folder
DS1817+ 512
DS1817 256
Maximum Shared Folder Sync Tasks
DS1817+ 8
DS1817 4
Maximum Concurrent CIFS/AFP/FTP Connections
DS1817+ 512(2GB) / 2048(8GB)
DS1817 1024
Windows Access Control List (ACL) Integration
DS1817+
DS1817
NFS Kerberos Authentication
DS1817+
DS1817
High Availability Manager
DS1817+
DS1817
Log Center
DS1817+
DS1817
Syslog Events per Second
DS1817+ 800
DS1817 400
Virtualization
VMware vSphere 6 with VAAI
DS1817+
DS1817
Windows Server 2012
DS1817+
DS1817
Windows Server 2012 R2
DS1817+
DS1817
Citrix Ready
DS1817+
DS1817
OpenStack
DS1817+
DS1817
Antivirus by McAfee (Trial)
DS1817+
DS1817
Central Management System
DS1817+
DS1817
Chat
DS1817+
DS1817
Maximum Users
DS1817+ 1500
DS1817 800
Notes
DS1817+
  • The number of concurrent HTTP connections for Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
DS1817
  • The number of concurrent HTTP connections for Chat was configured to the maximum.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server
DS1817+
DS1817
Maximum Number of Concurrently Connected Devices
DS1817+ 512 (2GB) / 2000 (8GB)
DS1817 1024
Maximum Number of Concurrently Connected Devices (with RAM expansion)
DS1817+ 2000
DS1817 1200
Maximum Number of Synced Files (btrfs)
DS1817+ 1,000,000 / single file reaction time 827 (2GB) / 872 (8GB) ms
DS1817
Maximum Number of Synced Files (ext4)
DS1817+ 1,000,000 / single file reaction time 533 (2GB) / 512 (8GB) ms
DS1817 500,000 / single file reaction time 763 ms
Notes
DS1817+
  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time. For more information on file processing capability, please refer to the reaction time for file processing.
  • File reaction time refers to the preparation time required for other devices to start downloading a 1KByte file from a Synology NAS after the file has been added to the NAS. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.
DS1817
  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time. For more information on file processing capability, please refer to the reaction time for file processing.
  • File reaction time refers to the preparation time required for other devices to start downloading a 1KByte file from a Synology NAS after the file has been added to the NAS. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.
Document Viewer
DS1817+
DS1817
Download Station
DS1817+
DS1817
Maximum Concurrent Download Tasks
DS1817+ 80
DS1817 50
exFAT Access (optional)
DS1817+
DS1817
MailPlus / MailPlus Server
DS1817+
DS1817
Free Email Accounts
Recommended MailPlus Client Number
DS1817+ Up to 90(btrfs)/100(ext4)
DS1817
Maximum Server Performance
DS1817+ 825,000 emails per day, approx. 25.18 GB
DS1817
Media Server
DS1817+
DS1817
DLNA Compliance
DS1817+
DS1817
Office
DS1817+
DS1817
Maximum Users
DS1817+ 400
DS1817 150
Maximum Simultaneous Editing Users
DS1817+ 80
DS1817 40
Notes
DS1817+
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
DS1817
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Snapshot Replication
DS1817+
DS1817
Maximum Snapshots per Shared Folder
DS1817+ 1024
DS1817
Maximum Snapshots of all Shared Folder
DS1817+ 65536
DS1817
Surveillance Station
DS1817+
DS1817
Maximum IP cam (Licenses required)
DS1817+ 40 (including 2 Free License) (See All Supported IP Cameras)
DS1817 30 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)*
DS1817+ 1200 (2GB RAM) / 1200 (8GB RAM) FPS @ 720p (1280x720)
900 (2GB RAM) / 1080 (8GB RAM) FPS @ 1080p (1920×1080)
320 (2GB RAM) / 480 (8GB RAM) FPS @ 3M (2048x1536)
270 (2GB RAM) / 280 (8GB RAM) FPS @ 5M (2591x1944)
120 (2GB RAM) / 160 (8GB RAM) FPS @ 4K (3840x2160)
DS1817 900 FPS @ 720p (1280x720)
480 FPS @ 1080p (1920×1080)
300 FPS @ 3M (2048x1536)
250 FPS @ 5M (2591x1944)
Total FPS (H.265)*
DS1817+ 1200 (2GB RAM) / 1200 (8GB RAM) FPS @ 720p (1280x720)
1200 (2GB RAM) / 1200 (8GB RAM) FPS @ 1080p (1920×1080)
560 (2GB RAM) / 1120 (8GB RAM) FPS @ 3M (2048x1536)
300 (2GB RAM) / 760 (8GB RAM) FPS @ 5M (2591x1944)
200 (2GB RAM) / 480 (8GB RAM) FPS @ 4K (3840x2160)
DS1817
Total FPS (MJPEG)*
DS1817+ 540 (2GB RAM) / 760 (8GB RAM) FPS @ 720p (1280x720)
200 (2GB RAM) / 400 (8GB RAM) FPS @ 1080p (1920×1080)
150 (2GB RAM) / 280 (8GB RAM) FPS @ 3M (2048x1536)
90 (2GB RAM) / 200 (8GB RAM) FPS @ 5M (2591x1944)
DS1817 480 FPS @ 720p (1280x720)
300 FPS @ 1080p (1920×1080)
250 FPS @ 3M (2048x1536)
200 FPS @ 5M (2591x1944)
Video Station
DS1817+
DS1817
Video Transcoding
DS1817+ Group 1 - Type 1 (See more)
DS1817 Group 1 - Type 2 (See more)
Maximum Transcoding Channel Number
DS1817+
  • 1 channel, 30 FPS @ 1080p(1920×1080), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
DS1817
  • 1 channel, 30 FPS @ 720p (1280x720), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
Virtual Machine Manager
DS1817+
DS1817
Maximum Virtual DSM Number (Licenses required)
DS1817+ 4 (including 1 Free License) (Learn more)
DS1817
VPN Server
DS1817+
DS1817
Maximum Connections
DS1817+ 20
DS1817 15
Environment & Packaging
Environment
DS1817+ RoHS Compliant
DS1817 RoHS Compliant
Packaging Content
DS1817+
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
  • Quick Installation Guide X 1
DS1817
  • Main Unit X 1
  • Welcome Note X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • RJ-45 LAN Cable X 2
Optional Accessories
DS1817+
  • Surveillance Device License Pack
  • 8GB (4GB x 2) DDR3 RAM Module Kit
  • 16GB (8GB x 2) DDR3 RAM Module Kit
  • Expansion Unit: DX517 X 2
  • VS360HD
  • VS960HD
  • Synology Ethernet Adapter E10G15-F1
  • Synology Ethernet Adapter E10G17-F2
  • Synology M2D17 M.2 SSD adapter card
DS1817
  • Surveillance Device License Pack
  • 4GB DDR3 RAM Module
  • Expansion Unit: DX517 X 2
  • VS360HD
  • VS960HD