RackStation
RS819
RackStation RS819
Entry-level rackmount NAS supporting snapshot technology
Fast storage with outstanding computing power
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.
CPU
64-bit quad-core 1.4 GHz
Memory
2GB DDR4
Network
Dual 1GbE LAN ports
High Performance
Over 224 MB/s encrypted reading performance
Meet the space-saving rackmount server for deployment
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.
- Compact chassis design capable of fitting in a 2-post rack
- The 2-post rack mount is easy to assemble and space-saving, allowing you to set up anywhere
- Cost-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
The Btrfs file system introduces cutting-edge storage technologies and optimized snapshots to prevent data corruption and reduce maintenance overhead. While ensuring high-level data integrity, it also offers flexible, efficient data protection and recovery tools.
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
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
Encrypt 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.
Engineered for reliability, backed by Synology
RS819 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
Powered by Synology DiskStation Manager
DSM UI
Award-winning operating system with an intuitive user interface and powerful capabilities.
Learn morePublic Cloud Integration
Back up and synchronize data easily between public cloud accounts and your NAS.
Learn moreSynology Drive
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
Learn moreAll-in-one server
Save additional investment by integrating various network services, web/mail services, management applications into your NAS.
Learn moreSnapshot Replication
Schedulable and instantaneous data protection of shared folders and iSCSI LUNs for quick disaster recovery.
Learn moreSecurity
Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions.
Learn more
- 1 Power button and indicator
- 2 LAN indicator
- 3 Drive status indicator
- 4 Beep off button
- 5 Status indicator
- 6 Drive tray
- 7 Console port
- 8 System fan
- 9 Power port
- 10 1GbE RJ-45 port
- 11 USB 3.0 port
- 12 eSATA port
- 13 Reset button
Hardware Specifications |
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CPU |
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CPU
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CPU Model | Realtek RTD1296 |
| CPU Quantity | 1 | |
| CPU Architecture | 64-bit | |
| CPU Frequency | 4-core 1.4 GHz | |
| Hardware Encryption Engine | ||
Memory |
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Memory
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System Memory | 2 GB DDR4 non-ECC |
| Notes | 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 |
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Storage
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Drive Bays | 4 |
| Maximum Drive Bays with Expansion Unit | 8 (RX418 x 1) | |
| Compatible Drive Type* (See all supported drives) |
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| Hot Swappable Drive | ||
| Notes | "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. | |
External Ports |
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External Ports
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RJ-45 1GbE LAN Port | 2 (with Link Aggregation / Failover support) |
| USB 3.2 Gen 1 Port* | 2 | |
| eSATA Port | 1 | |
| Notes | The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. | |
File System |
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File System
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Internal Drives |
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| External Drives |
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| Notes | exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center. | |
Appearance |
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Appearance
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Form Factor (RU) | 1U |
| Size (Height x Width x Depth) | 44 mm x 478 mm x 327.5 mm | |
| Weight | 4.34 kg | |
| Rack Installation Support* | ||
| Notes | The rail kit is sold separately | |
Others |
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Others
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System Fan | 40 mm x 40 mm x 3 pcs |
| Fan Speed Mode |
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| Power Recovery | ||
| Noise Level* | 28.9 dB(A) | |
| Scheduled Power On / Off | ||
| Wake on LAN / WAN | ||
| Power Supply Unit / Adapter | 100 W | |
| AC Input Power Voltage | 100V to 240V AC | |
| Power Frequency | 50/60 Hz, Single Phase | |
| Power Consumption* |
28.31 W (Access) 10.1 W (HDD Hibernation) |
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| British Thermal Unit |
96.6 BTU/hr (Access) 34.46 BTU/hr (HDD Hibernation) |
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| Notes | Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s). | |
Temperature |
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Temperature
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Operating Temperature | 5°C to 35°C (40°F to 95°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) | |
| Relative Humidity | 5% to 95% RH | |
Certification |
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Certification
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Warranty |
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Warranty
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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 |
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Environment
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RoHS Compliant | |
Packaging Content |
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Packaging Content
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Optional Accessories |
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Optional Accessories
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| Notes | Certain items may not be available in your location. Please contact your local distributors for more information. | |
DSM Specifications |
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| Maximum Single Volume Size* | 108 TB | |
| Maximum Internal Volume Number | 64 | |
| SSD TRIM | ||
| Supported RAID Type |
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| RAID Migration |
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| Volume Expansion with Larger HDDs |
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| Volume Expansion by Adding a HDD |
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| Global Hot Spare Supported RAID Type |
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| Notes |
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| File Protocol | SMB/AFP/NFS/FTP/WebDAV | |
| Maximum Concurrent SMB/AFP/FTP Connections | 200 | |
| Windows Access Control List (ACL) Integration | ||
| NFS Kerberos Authentication | ||
| Notes | 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. | |
| Maximum Local User Accounts | 2,048 | |
| Maximum Local Groups | 256 | |
| Maximum Shared Folder | 256 | |
| Maximum Shared Folder Sync Tasks | 4 | |
| Maximum Hybrid Share Folders | 5 | |
| Notes | For more details about the maximum number of Hybrid Share folders, check this article. | |
| Syslog Events per Second | 400 | |
| Networking Protocols | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV | |
| Supported Browsers |
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| 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 | |
| Notes | For an updated list of supported browser versions, check the DSM Technical Specifications. | |
Add-on Packages view the complete package list |
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| Maximum Users | 500 | |
| Notes | When applicable, systems are tested configured with maximum memory and set to allow the maximum number of connections. | |
Download Station |
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Download Station
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| Maximum Concurrent Download Tasks | 80 | |
| Maximum iSCSI Target Number | 128 | |
| Maximum LUN | 256 | |
| LUN Clone/Snapshot, Windows ODX | ||
| Notes | iSCSI Manager has been renamed to SAN Manager in DSM 7.0. | |
| DLNA Compliance | ||
| Facial Recognition | ||
| Notes | Photo Station and Synology Moments are succeeded by Synology Photos in DSM 7.0. For a features comparison, check this article. | |
| Maximum Snapshots per Shared Folder | 256 | |
| Maximum of System Snapshots | 4,096 | |
| Maximum IP cam (Licenses required) | 30 (including 2 Free License) (see all supported IP cameras) | |
| Total FPS (H.264) |
900 FPS @ 720p (1280x720) 300 FPS @ 1080p (1920x1080) 240 FPS @ 3M (2048x1536) 150 FPS @ 5M (2591x1944) 110 FPS @ 4K (3840x2160) |
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| Total FPS (H.265) |
900 FPS @ 720p (1280x720) 450 FPS @ 1080p (1920x1080) 360 FPS @ 3M (2048x1536) 250 FPS @ 5M (2591x1944) 180 FPS @ 4K (3840x2160) |
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| Total FPS (MJPEG) |
300 FPS @ 720p (1280x720) 200 FPS @ 1080p (1920x1080) 130 FPS @ 3M (2048x1536) 80 FPS @ 5M (2591x1944) |
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| Notes |
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| Recommended Number of Concurrent Sync Clients | 200 (the number of connections that can be maintained when the recommended number of hosted files was reached) | |
| Recommended Number of Hosted Files | 500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) | |
| Notes |
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| Maximum Users | 200 | |
| Notes |
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| Video Transcoding | Group 2 (See more) | |
| Maximum Connections | 20 | |
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.