Fast storage with outstanding computing power br>
RS819 is a compact and scalable 4-bay rackmount NAS in a 1U form factor. With snapshot technology support, RS819 brings business workgroups simple yet comprehensive solutions to data management, sharing, synchronization and backup.

Our most economical and space-saving rackmount during server deploymentbr>
RS819 supports up to 8 drives when connecting with one RX418 expansion unit. Since both RS819 and RX418 are only 12 inches in depth, they can fit perfectly in a 2-post or wall mount rack.

oCompact chassis design capable of fitting in a 2-post rack

oThe 2-post rack mount is easy to assemble and space-saving, allowing you to set up anywhere

oCost-efficient server deployment without unnecessary investment in rail kits and server facilities

Ultimate file management and sharing

File Station is a web-based, fast and secure management tool built to allow easy, drag-and-drop operations without requiring any complex setup on Mac or PC. Advanced search and filtering tools allow for easy organization and file sharing. For complete compatibility, RS819 supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.

Btrfs: Next generation storage efficiency

Btrfs file system introduces the most advanced storage technologies to meet the management needs of modern large scale businesses:

Flexible Shared Folder/User Quota System provides comprehensive quota control on all user accounts and shared folders

Snapshot Replication provides schedulable and storage capacity-saving data protection with 256 shared folder backups and 4,096 system-wide snapshots

File or folder level data restoration makes data recovery fast and flexible

Automatic file self-healing detects and recovers corrupted files without user intervention


Hardware Specifications
CPU
CPU Model
Realtek RTD1296
CPU Architecture
64-bit
CPU Frequency
Quad Core 1.4 GHz
Hardware Encryption Engine
Yes
Memory

System Memory
2 GB DDR4
Notes
Synology reserves the right to replace memory modules with the same or higher frequency based on suppliers product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.
Storage
Drive Bays
4
Maximum Drive Bays with Expansion Unit
8
Compatible Drive Type
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity
56 TB (14 TB drive x 4) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units
112 TB (56 TB + 14 TB drive x 4) (Capacity may vary by RAID types)
Maximum Single Volume Size
108 TB
Hot Swappable Drive
Yes
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.
External Ports
RJ-45 1GbE LAN Port
2 (with Link Aggregation / Failover support)
USB 3.0 Port
2
eSATA Port
1
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
Rack Installation Support
2-post 19" rack (direct mounting)
4-post 19" rack (Synology Rail Kit - RKM114/RKS1317)
Notes
The rail kit is sold separately.
Others
System Fan
40 mm x 40 mm x 3 pcs
Fan Speed Mode
Full-Speed Mode
Cool Mode
Quiet Mode
Power Recovery
Yes
Noise Level
28.9 dB(A)
Scheduled Power On/Off
Yes
Wake on LAN/WAN
Yes
Power Supply Unit / Adapter
100W
AC Input Power Voltage
100V to 240V AC
Power Frequency
50/60Hz, Single Phase
Power Consumption
28.31 W (Access)
10.1 W (HDD Hibernation)
British Thermal Unit
96.6 BTU/hr (Access)
34.46 BTU/hr (HDD Hibernation)
Temperature
Operating Temperature
5^oC to 35^oC (40^oF to 95^oF)
Storage Temperature
-20^oC to 60^oC (-5^oF to 140^oF)
Relative Humidity
5% to 95% RH
Certification
EAC
VCCI
CCC
RCM
FCC
CE
BSMI
Notes
The warranty period starts from the purchase date as stated on your purchase receipt.
Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
DSM Specifications
Storage Management
Maximum Internal Volume Number
64
Maximum iSCSI Target Number
10
Maximum iSCSI LUN
10
iSCSI LUN Clone/Snapshot, Windows ODX
Yes
SSD TRIM
Yes
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 (with Expansion Unit)
RAID 10 (with Expansion Unit)
Global Hot Spare Supported RAID Type
Synology Hybrid RAID
RAID 1
RAID 5
RAID 6 (with Expansion Unit)
RAID 10 (with Expansion Unit)
File Services
File Protocol
CIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections
200
Windows Access Control List (ACL) Integration
Yes
NFS Kerberos Authentication
Yes
Account and Shared Folder
Maximum Local User Accounts
2,048
Maximum Local Groups
256
Maximum Shared Folder
256
Maximum Shared Folder Sync Tasks
4
Log Center
Yes
Syslog Events per Second
400
Add-on Packages
Chat
Yes
Maximum Users
500
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.
Cloud Station Server
Yes
Recommended Number of Hosted Files
100,000
Recommended Number of Concurrent Sync Clients
200 (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.
Download Station
Yes
Maximum Concurrent Download Tasks
80
exFAT Access (optional)
Yes
Media Server
Yes
DLNA Compliance
Yes
Moments
Yes
Facial recognition
Yes
Subject recognition
Yes
Snapshot Replication
Yes
Maximum Snapshots per Shared Folder
256
Maximum of system snapshots
4,096
Surveillance Station
Yes
Maximum IP cam (Licenses required)
30 (including 2 Free License)
Total FPS (H.264)
900 FPS at 720p (1280x720)
300 FPS at 1080p (1920x1080)
240 FPS at 3M (2048x1536)
150 FPS at 5M (2591x1944)
110 FPS at 4K (3840x2160)
Total FPS (H.265)
900 FPS at 720p (1280x720)
450 FPS at 1080p (1920x1080)
360 FPS at 3M (2048x1536)
250 FPS at 5M (2591x1944)
180 FPS at 4K (3840x2160)
Total FPS (MJPEG)
300 FPS at 720p (1280x720)
200 FPS at 1080p (1920x1080)
130 FPS at 3M (2048x1536)
80 FPS at 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.
Synology Drive
Yes
Recommended Number of Hosted Files
100,000 (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
200 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Notes
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
Yes
Maximum Users
200
Notes
Multiple 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.
Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Video Station
Yes
Video Transcoding
Group 2
VPN Server
Yes
Maximum Connections
20
Environment and Packaging
Environment
RoHS Compliant
Packaging Content
Main Unit X 1
Accessory Pack X 1
AC Power Cord X 1
Quick Installation Guide X 1
Optional Accessories
Surveillance Device License Pack
Expansion Unit: RX418 X 1
Synology Rail Kit Sliding - RKS1317
Synology Rail Kit Mounted - RKM114
VS360HD
VS960HD
Item Dimension (L"xW"xH")
22 x 16 x 6

Weight
16 lbs

Warranty Information
3 Year