DS1819+

DiskStation DS1819+

Scalable 8-bay NAS for small- to medium-sized businesses

Ready to Grow as Your Business Thrives

DS1819+ is an 8-bay desktop NAS providing superior performance with great expandability, allowing for seamless expansion and upgradability to satisfy your growing business needs.

CPU
Quad-core 2.1GHz with AES-NI encryption engine

Memory
4GB DDR4, expandable up to 32GB

Scalability
Up to 18 drives with two DX517

Performance
2,045 MB/s sequential reading and 656 MB/s writing1

Fulfills Intensive Workloads with PCIe Expansion

DS1819+ comes with four Gigabit Ethernet ports and one PCIe expansion slot, providing great configuration flexibility, thereby satisfying your intensive workload demands.

Install one M.2 SSD adapter M2D18

Boosting random IOPS with M.2 NVMe/SATA SSD cache, or

Install one 10GbE add-on card

Breaking through data transmission bandwidth with a certified network interface card

Four built-in Gigabit Ethernet ports

Support for failover and Link Aggregation

Engineered for reliability, backed by Synology

DS1819+ is designed to reliably store your data and is backed by Synology's three-year hardware warranty. An optional two-year extended warranty is available in select regions for up to five years of coverage.

Real-time collaboration on your private cloud

Office is a collaboration package combining the convenience and usability of public clouds with the data privacy and security guaranteed by private clouds. It allows you to work seamlessly together on documents and spreadsheets in a protected environment. Real-time collaboration on the same online documents to boost productivity. Version control for you to navigate all the changes and retrieve previous versions with just a click. Instant communication on Synology Chat during the editing of documents or spreadsheets.

Digital asset protection

Powered by Synology DiskStation Manager (DSM), Synology NAS offers advanced security measures to protect against sudden data loss and potential security holes.

Security Advisor

Analyzes system settings, password strength, network preferences, and removes any possible malware.

AppArmor

A kernel-level enhancement that blocks malicious programs from accessing unauthorized system resources.

AES 256-bit encryption

Encrypt shared folders and network data transmission to keep data from unauthorized access.

2-step verification

Prevent others from logging in to your DSM by generating a one-time password (OTP) on your mobile device.

Trust Level

Customize the trust level in Package Center to avoid installing packages from untrusted sources, safeguarding your NAS from unknown or tampered package files.

Ultimate Backup Solution

DS1819+ integrates various backup applications to safeguard your important data on any device with an intuitive user interface and durable storage technologies.

Active Backup for Business

An agentless backup solution protects data from Windows and Linux servers through SMB and Rsync to minimize deployment and management costs.

Hyper Backup

Comprehensively back up your data to a local shared folder, an external device, another Synology NAS, an rsync server, or a public cloud to ensure data safety.

Desktop Backup

Safeguard your PC with Cloud Station Backup. Effortlessly back up data stored on macOS to Synology NAS with Time Machine.

Active Backup for Office 365/ G Suite

Protect corporate data stored on the cloud. On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.

Fully certified storage virtualization solutions

Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.

DSM UI

Award-winning operating system with an intuitive user interface and powerful capabilities.

High Availability

Ensures seamless service transition between clustered servers in the event of a server failure.

Public Cloud Integration

Backup and synchronize data easily between your public cloud accounts and your NAS.

Snapshot Replication

Provides schedulable and instantaneous data protection for shared folders and virtual machines on iSCSI LUNs in the event of disaster.

Drive

A versatile solution for file management and synchronization.

Security

Comprehensive built-in security tools are constantly updated to tackle evolving threats and protect your devices.

Hardware Specifications 
CPU
CPU ModelIntel Atom C3538
CPU Architecture64-bit
CPU FrequencyQuad Core 2.1 GHz
Hardware Encryption Engine (AES-NI)
Memory
System Memory4 GB DDR4
Memory Module Pre-installed4GB (1 x 4GB)
Total Memory Slots2
Memory Expandable up to32 GB (16 GB x 2)
Storage
Drive Bays8
Maximum Drive Bays with Expansion Unit18
Compatible Drive Type* (See all supported drives)3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity112 TB (14 TB drive x 8) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units252 TB (112 TB + 14 TB drive x 10) (Capacity may vary by RAID types)
Maximum Single Volume Size108 TB
Hot Swappable Drive
Notes"Compatible drive type" indicates the drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
The maximum raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
Expansion of the internal volume is only supported if the combined single volume size does not exceed the maximum limit of 108TB.
External Ports
RJ-45 1GbE LAN Port4 (with Link Aggregation / Failover support)
USB 3.0 Port4
eSATA Port2
PCIe
PCIe Expansion1 x Gen3 x8 slot (black, x4 link)
Add-in-card supportM2D18 - Dual M.2 SATA/NVMe SSD adapter card for SSD cache
PCIe Network Interface Card (Learn more)
File System
Internal DrivesBtrfs
EXT4
External DrivesBtrfs
EXT4
EXT3
FAT
NTFS
HFS+
exFAT*
NotesexFAT Access is purchased separately in Package Center.
Appearance
Size (Height x Width x Depth)166 mm x 343 mm x 243 mm 
Weight6 kg 
Others
System Fan120 mm x 120 mm x 2 pcs
Fan Speed ModeFull-Speed Mode
Cool Mode
Quiet Mode
Easy Replacement System Fan
Brightness adjustable front LED indicators
Power Recovery
Noise Level*22.2 dB(A) 
Scheduled Power On/Off
Wake on LAN/WAN
Power Supply Unit / Adapter250W 
AC Input Power Voltage100V to 240V AC
Power Frequency50/60 Hz, Single Phase
Power Consumption*66.96 W (Access) 
29.39 W (HDD Hibernation) 
British Thermal Unit228.63 BTU/hr (Access) 
100.35 BTU/hr (HDD Hibernation) 
Environment Temperature
Operating Temperature0°C to 40°C (32°F to 104°F)
Storage Temperature-20°C to 60°C (-5°F to 140°F)
Relative Humidity5% to 95% RH
CertificationFCC
CE
BSMI
EAC
VCCI
CCC
RCM
KC
Warranty3 Year Hardware Warranty, Extendable to 5 Year Coverage - EW201
NotesPower consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
DSM Specifications ( See more )
Storage Management
Maximum Internal Volume Number512
Maximum iSCSI Target Number128
Maximum iSCSI LUN256
iSCSI LUN Clone/Snapshot, Windows ODX
SSD Read/Write Cache (White Paper)
SSD TRIM
Supported RAID TypeSynology Hybrid RAID
Basic
JBOD
RAID 0
RAID 1
RAID 5
RAID 6
RAID 10
RAID MigrationBasic to RAID 1
Basic to RAID 5
RAID 1 to RAID 5
RAID 5 to RAID 6
Volume Expansion with Larger HDDsSynology Hybrid RAID
RAID 1
RAID 5
RAID 6
Volume Expansion by Adding a HDDSynology Hybrid RAID
RAID 5
RAID 6
JBOD
Global Hot Spare Supported RAID TypeSynology Hybrid RAID
RAID 1
RAID 5
RAID 6
RAID 10
File Services
File ProtocolCIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections1000
Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion)2000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Account & Shared Folder
Maximum Local User Accounts2048
Maximum Local Groups256
Maximum Shared Folder512
Maximum Shared Folder Sync Tasks16
High Availability Manager
Log Center
Syslog Events per Second800
Virtualization
VMware vSphere 6 with VAAI
Windows Server 2016
Citrix Ready
OpenStack
Add-on Packages (learn more about the complete add-on package list)
Antivirus by McAfee (Trial)
Central Management System
Chat
Maximum Users1500
NotesThe 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.
Cloud Station Server
Maximum Number of Concurrently Connected Devices1000
Maximum Number of Concurrently Connected Devices (with RAM expansion)2000
Maximum Number of Hosted Files (btrfs)1000000
Maximum Number of Hosted Files (ext4)1000000
NotesThe maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time.
The maximum number of hosted files refers to the maximum number of files that can be indexed and hosted by the Cloud Station Server service. RAM expansion was not used during testing.
Non-encrypted shared folders were used during the aforementioned testing.
Document Viewer
Download Station
Maximum Concurrent Download Tasks80
exFAT Access (optional)
MailPlus / MailPlus Server
Free Email Accounts5 (Licenses required for additional accounts)
Maximum number of concurrent usersUp to 150
Maximum Server Performance1,484,000 emails per day, approx. 45GB
NotesThe CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
For tested models with expandable memory, the maximum amount of RAM was installed.
Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
Media Server
DLNA Compliance
Moments
Facial recognition
Subject recognition
Snapshot Replication
Maximum Snapshots per Shared Folder1024
Maximum of system snapshots65536
Surveillance Station
Maximum IP cam (Licenses required)40 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)*1200 FPS @ 720p (1280x720) 
960 FPS @ 1080p (1920×1080) 
520 FPS @ 3M (2048x1536) 
320 FPS @ 5M (2591x1944) 
240 FPS @ 4K (3840x2160)
Total FPS (H.265)*1200 FPS @ 720p (1280x720) 
1200 FPS @ 1080p (1920×1080) 
880 FPS @ 3M (2048x1536) 
520 FPS @ 5M (2591x1944) 
400 FPS @ 4K (3840x2160)
Total FPS (MJPEG)*560 FPS @ 720p (1280x720) 
270 FPS @ 1080p (1920×1080) 
190 FPS @ 3M (2048x1536) 
110 FPS @ 5M (2591x1944)
NotesSurveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
Synology Drive
Recommended Number of Hosted Files1,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Recommended Number of Concurrent Connections for PC Clients550 (the number of connections that can be maintained when the recommended number of hosted files was reached)
NotesFor tested models with expandable memory, the maximum amount of RAM was installed.
Exceeding the limits above may result in longer response time in file operations.
Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
Maximum Users1800
NotesMultiple files were opened for testing and each file was edited by 30 users simultaneously.
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
Video Station
Video TranscodingGroup 1 - Type 1 (See more)
Maximum Transcoding Channel Number1 channel, 30 FPS @ 1080p(1920×1080), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
Virtual Machine Manager
Recommended Virtual Machine Instances4 (Learn more)
Recommended Virtual DSM Number(Licenses required)4 (including 1 Free License)
NotesVirtual Machine Manager is not supported on hosts running Synology High Availability. 
The specifications vary depending on system configuration and memory size.
VPN Server
Maximum Connections30
Environment & Packaging
EnvironmentRoHS Compliant
Packaging ContentMain Unit X 1
Accessory Pack X 1
AC Power Cord X 1
RJ-45 LAN Cable X 2
Quick Installation Guide X 1
Optional AccessoriesSurveillance Device License Pack
D4NS2133-4G DDR4 non-ECC SO-DIMM*
RAMEC2133DDR4SO-16G DDR4 ECC SO-DIMM
Expansion Unit: DX517 X 2
VS360HD
VS960HD
Synology Ethernet Adapter E10G18-T1
Synology Ethernet Adapter E10G18-T2
Synology Ethernet Adapter E10G17-F2
Synology M2D18 M.2 SSD adapter card
NotesMixed usage of non-ECC and ECC UDIMMs is not supported.