DiskStation DS1819+

Performance Compatibility Downloads Compare

DiskStation DS1819+

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

Features
Specs

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.

Download Datasheet

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
Install one 10GbE add-in card

Breaking through data transmission bandwidth with a certified network interface card
Four built-in Gigabit Ethernet ports

Support for failover and Link Aggregation

Note: M2D18 and 10GbE add-in cards are sold separately.

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. Learn more

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. Learn more

Security Advisor

Analyze system settings, password strength and network preferences, and remove any possible malware.

AppArmor

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

AES 256-bit encryption

ncrypt shared folders and network data transmission to avoid unauthorized data access.

2-step verification

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

Ultimate Backup Solution

DS1819+ integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.

Active Backup for Business

Centralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed.
Learn more

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.
Learn more

Synology Drive

Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.
Learn more

Active Backup for
Microsoft 365 / G Suite

On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.
Microsoft 365 G Suite

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.

Powered by Synology DSM

DSM UI

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

Learn more

Synology High Availability

Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.

Learn more

Public Cloud Integration

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

Learn more

Snapshot Replication

Schedulable and instantaneous data protection for shared folders and iSCSI LUNs for disaster prevention.

Learn more

Synology Drive

A versatile solution for file management and synchronization.

Learn more

Security

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

Learn more

1 Status indicator
2 Alert indicator
3 Drive status indicator
4 Drive tray lock

5 Power button and indicator
6 LAN indicator
7 USB 3.0 port
8 System fan

9 Power port
10 Kensington Security Slot
11 1GbE RJ-45 port
12 eSATA port

13 PCIe expansion slot
14 Reset button
15 USB 3.0 port

Notes:

Performance figures may vary depending on environment, usage, and configuration.

Hardware Specs
Software Specs

Hardware Specifications
CPU
CPU	CPU Model	Intel Atom C3538
	CPU Architecture	64-bit
	CPU Frequency	4-core 2.1 GHz
	Hardware Encryption Engine (AES-NI)
Memory
Memory	System Memory	4 GB DDR4 non-ECC SODIMM
	Memory Module Pre-installed	4 GB (4 GB x 1)
	Total Memory Slots	2
	Maximum Memory Capacity	32 GB (16 GB x 2)
	Notes	For more information on memory upgrade limitations, visit here. Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. For more information on the recommended memory configurations, visit here. Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Storage
Storage	Drive Bays	8
	Maximum Drive Bays with Expansion Unit	18 (DX517 x 2)
	Compatible Drive Type* (See all supported drives)	3.5" SATA HDD 2.5" SATA HDD 2.5" SATA SSD
	Maximum Single Volume Size*	108 TB
	Hot Swappable Drive
	Notes	Storage Pool and volume creation require all drives to be listed as compatible on the device model's compatibility list. "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. Each internal volume (may consist of multiple drives) is expandable up to 108TB.
External Ports
External Ports	RJ-45 1GbE LAN Port	4 (with Link Aggregation / Failover support)
	USB 3.2 Gen 1 Port*	4
	eSATA Port	2
	Notes	The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
PCIe
PCIe	PCIe Expansion	1 x Gen3 x8 slot (black, x4 link)
File System
File System	Internal Drives	Btrfs EXT4
	External Drives	Btrfs EXT4 EXT3 FAT NTFS HFS+ exFAT*
	Notes	exFAT Access is purchased separately in Package Center.
Appearance
Appearance	Size (Height x Width x Depth)	166 mm x 343 mm x 243 mm
	Weight	6 kg
Others
Others	System Fan	120 mm x 120 mm x 2 pcs
	Fan Speed Mode	Full-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 / Adapter	250 W
	AC Input Power Voltage	100 V to 240 V AC
	Power Frequency	50/60 Hz, Single Phase
	Power Consumption*	66.96 W (Access) 29.39 W (HDD Hibernation)
	British Thermal Unit	228.63 BTU/hr (Access) 100.35 BTU/hr (HDD Hibernation)
	Notes	Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s). Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature
Temperature	Operating Temperature	0°C to 40°C (32°F to 104°F)
	Storage Temperature	-20°C to 60°C (-5°F to 140°F)
	Relative Humidity	5% to 95% RH
Certification
Certification	EAC CCC KC FCC CE BSMI VCCI RCM
Warranty
Warranty	3-year hardware warranty, extendable to 5-year coverage - EW201
	Notes	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment
Environment	RoHS Compliant
Packaging Content
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
Optional Accessories
Optional Accessories	DDR4 non-ECC SODIMM: D4NESO-2666-4G DDR4 ECC SODIMM: D4ECSO-2666-16G Expansion Units: DX517 2.5" SATA SSD: SAT5200 M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1 M.2 SSD Adapter Card: M2D20/M2D18 10GbE Network Interface Card: E10G18-T2/E10G18-T1/E10G17-F2 VisualStation: VS960HD/VS360HD Surveillance Device License Pack
	Notes	All memory modules will operate at the maximum frequency specified by the CPU manufacturer. The original non-ECC memory modules must be removed before the optional ECC memory modules can be installed. For more information, visit here.

DSM Specifications
Storage Management
Storage Management	Maximum Internal Volume Number	64
	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
	RAID Migration	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 RAID 10
	Volume Expansion by Adding a HDD	Synology Hybrid RAID JBOD RAID 5 RAID 6
	Global Hot Spare Supported RAID Type	Synology Hybrid RAID RAID 1 RAID 5 RAID 6 RAID 10
File Services
File Services	File Protocol	CIFS/AFP/NFS/FTP/WebDAV
	Maximum Concurrent CIFS/AFP/FTP Connections	1,000
	Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion)	2,000
	Windows Access Control List (ACL) Integration
	NFS Kerberos Authentication
	Notes	Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM. The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.
Account & Shared Folder
Account & Shared Folder	Maximum Local User Accounts	2,048
	Maximum Local Groups	256
	Maximum Shared Folder	512
	Maximum Shared Folder Sync Tasks	16
High Availability
High Availability	Synology High Availability
Log Center
Log Center
	Syslog Events per Second	800
Virtualization
Virtualization	VMware vSphere 6 with VAAI
	Windows Server 2016
	Windows Server 2019
	Citrix Ready
	OpenStack
General Specifications
General Specifications	Networking Protocols	SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
	Supported Browsers	Google Chrome Firefox Microsoft Edge Internet Explorer 10 onwards Safari 10 onwards Safari (iOS 10 onwards) Google Chrome (Android 6.0 onwards)
	Supported Language	English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
Add-on Packages view the complete package list
Antivirus by McAfee (Trial)
Antivirus by McAfee (Trial)
Central Management System
Central Management System
Synology Chat
Synology Chat
	Maximum Users	1,500
	Notes	The number of concurrent HTTP connections for Synology Chat was configured to the maximum. For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server
Cloud Station Server
	Recommended Number of Hosted Files	1,000,000
	Recommended Number of Concurrent Sync Clients	550 (the number of connections that can be maintained when the recommended number of hosted files was reached)
	Notes	The 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
Document Viewer
Download Station
Download Station
	Maximum Concurrent Download Tasks	80
exFAT Access (Optional)
exFAT Access (Optional)
iSCSI Manager
iSCSI Manager	Maximum iSCSI Target Number	128
	Maximum iSCSI LUN	256
	iSCSI LUN Clone/Snapshot, Windows ODX
Synology MailPlus / MailPlus Server
Synology MailPlus / MailPlus Server
	Free Email Accounts	5 (Licenses required for additional accounts)
	Maximum Number of Concurrent Users	150
	Maximum Server Performance	1,484,000 emails per day, approx. 45 GB
	Notes	Models with more than 4 bays were installed with two SSDs for SSD cache. For tested models with expandable memory, the maximum amount of RAM was 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
Media Server
	DLNA Compliance
Moments
Moments
	Facial Recognition
	Subject Recognition
	Auto Color & Rotate
	Moments Select
Snapshot Replication
Snapshot Replication
	Maximum Snapshots per Shared Folder	1,024
	Maximum of System Snapshots	65,536
Surveillance Station
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 (1920x1080) 520 FPS @ 3M (2048x1536) 320 FPS @ 5M (2591x1944) 240 FPS @ 4K (3840x2160)
	Total FPS (H.265)	1200 FPS @ 720p (1280x720) 1200 FPS @ 1080p (1920x1080) 880 FPS @ 3M (2048x1536) 520 FPS @ 5M (2591x1944) 400 FPS @ 4K (3840x2160)
	Total FPS (MJPEG)	560 FPS @ 720p (1280x720) 270 FPS @ 1080p (1920x1080) 190 FPS @ 3M (2048x1536) 110 FPS @ 5M (2591x1944)
	Notes	Surveillance 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. The maximum channel number also includes devices installed on Virtual DSM. Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
Synology Drive
Synology Drive
	Recommended Number of Hosted Files	1,000,000 (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 Sync Clients	550 (the number of connections that can be maintained when the recommended number of hosted files was reached)
	Notes	Exceeding the recommended numbers above will not block application operations, but may result in longer response time. Utilizing SSD cache can significantly improve performance. For tested models with expandable memory, the maximum amount of RAM was installed. Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
Synology Office
	Maximum Users	1,800
	Notes	Multiple files were opened for testing and each file was edited by 30 users simultaneously. 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 Station
	Video Transcoding	Group 1 - Type 1 (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
Virtual Machine Manager
Virtual Machine Manager
	Recommended Virtual Machine Instances	4 (Learn more)
	Recommended Virtual DSM Number (Licenses required)	4 (including 1 Free License)
	Notes	The specifications vary depending on system configuration and memory size.
VPN Server
VPN Server
	Maximum Connections	30

Notes:

Model specifications are subject to change without prior notice.
The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
If usage requirements exceed the specifications above, please contact our regional partners for professional advice.