High-performance storage solution with on-demand scalability

Synology RackStation RS820+/RS820RP+ is designed for businesses pursuing an effective and centralized data management. It comes with four drive trays and 1GbE LAN ports and supports an optional 10GbE network or M.2 SSD adapter card, providing fast data transmission and reducing IO latency.

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CPU

4-core 2.1 GHz

Memory

2GB DDR4, up to 18GB

High Performance

Over 1,621 MB/s sequential reading1

Scalability

Up to 8 drives with RX4182

Built for service reliability

RS820+/RS820RP+ comes with four 1GbE LAN ports to support Link Aggregation and failover. Synology High Availability provides a reliable active/passive server cluster, maximizing service uptime. Furthermore, RS820RP+ is equipped with redundant power supplies to achieve service continuity.

Built for service reliability

Next-generation file system for better data protection

The Btrfs file system introduces advanced 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.

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Next-generation file system for better data protection

Flexible shared folder/user quota control provides comprehensive quota control on all user accounts and shared folders

Snapshot Replication provides schedulable and storage capacity-saving data protection with 1,024 shared folder backups and 65,000 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

Next-generation file system for better data protection

Ultimate Backup Solution

RS820+​/​RS820RP+ 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

Active Backup for Business

Active Backup centralizes backup tasks for VMware, Windows, Microsoft 365 and Google Workspace — so you can manage these backups to Synology NAS from one simple console.
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Hyper Backup

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.
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Drive Package

Drive Package

Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.
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Real-time collaboration on your private cloud

Synology Office is a collaboration package combining the convenience and usability of the public cloud with private cloud privacy and security. It enables seamless collaboration on documents and spreadsheets in a protected environment. Learn more

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Real-time collaboration on the same online documents to boost productivity,

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Instant communication on Synology Chat during the editing of documents or spreadsheets

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Version control for you to navigate all the changes and retrieve previous versions with just a click

Real-time collaboration on your private cloud
  1. Real-time collaboration on the same online documents to boost productivity,
  2. Instant communication on Synology Chat during the editing of documents or spreadsheets
  3. Version control for you to navigate all the changes and retrieve previous versions with just a click
Real-time collaboration on your private cloud

Engineered for reliability, backed by Synology

RS820+​/​RS820RP+ 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

Engineered for reliability, backed by Synology

Powered by Synology DiskStation Manager

Surveillance

Surveillance

Protect your home or business with intelligent monitoring and video management tools.

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Synology Office

Synology Office

Collaborate on documents, spreadsheets, and slides in real time to boost team productivity.

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Synology High Availability

Synology High Availability

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

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DSM UI

DSM UI

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

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Security

Security

Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions.

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All-in-one server

All-in-one server

Save additional investment by integrating various network services, web/mail services, management applications into your NAS.

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RackStation RS820+​/​RS820RP+

product RS820plus front view photo
product RS820plus back view photo
  • 1 Power indicator
  • 2 Power button
  • 3 Alert indicator
  • 4 Drive status indicator
  • 5 Beep off button
  • 6 Status indicator
  • 7 Drive tray
  • 8 Console port
  • 9 PCIe expansion slot
  • 10 Power port
  • 11 System fan
  • 12 1GbE RJ-45 port
  • 13 Reset button
  • 14 USB 3.0 port
  • 15 eSATA port

Notes:

  1. Please visit the performance page for test environment
  2. RS820+/RS820RP+ supports one Synology expansion unit RX418, sold separately.
Hardware Specifications
CPU
CPU
CPU Model Intel Atom C3538
CPU Quantity 1
CPU Architecture 64-bit
CPU Frequency 4-core 2.1 GHz
Hardware Encryption Engine (AES-NI)
Memory
Memory
System Memory 2 GB DDR4 non-ECC
Total Memory Slots 1
Maximum Memory Capacity 18 GB (2GB + 16 GB)
Notes
  • 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.
  • 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 4
Maximum Drive Bays with Expansion Unit 8 (RX418 x 1)
Compatible Drive Type* (See all supported drives)
  • 3.5" SATA HDD
  • 2.5" SATA HDD
  • 2.5" SATA SSD
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
External Ports
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
Max. number of LAN ports 8
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.
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 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
Appearance
Form Factor (RU) 1U
Size (Height x Width x Depth) RS820+ : 44 mm x 480 mm x 492.6 mm
RS820RP+ : 44 mm x 480 mm x 518.6 mm
Weight RS820+ : 6.4 kg
RS820RP+ : 7.96 kg
Rack Installation Support* 4-post 19" rack (Synology Rail Kit - RKM114/RKS-02)
Notes The rail kit is sold separately
Others
Others
System Fan RS820+ : 40 mm x 40 mm x 3 pcs
RS820RP+ : 40 mm x 40 mm x 2 pcs
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Power Recovery
Noise Level* RS820+ : 27 dB(A)
RS820RP+ : 39.9 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 150 W
Redundant Power Supply RS820+ : -
RS820RP+ :
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* RS820+ : 37.94 W (Access)
20.96 W (HDD Hibernation)
RS820RP+ : 38.88 W (Access)
22.17 W (HDD Hibernation)
British Thermal Unit RS820+ : 129.54 BTU/hr (Access)
71.57 BTU/hr (HDD Hibernation)
RS820RP+ : 132.75 BTU/hr (Access)
75.70 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 35°C (32°F to 95°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH
Certification
Certification
  • FCC
  • CE
  • BSMI
  • EAC
  • CCC
  • KC
  • VCCI
  • RCM
Warranty
Warranty
3-year hardware warranty, extendable to 5-year coverage - EW202
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
RS820+ :
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • Quick Installation Guide X 1

RS820RP+ :
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 2
  • Quick Installation Guide X 1
Optional Accessories
Optional Accessories
Notes
  • Certain items may not be available in your location. Please contact your local distributors for more information.
  • All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
  • This model does not support the ECC feature, regardless of whether the expansion memory is ECC or non-ECC.
DSM Specifications
Maximum Single Volume Size* 108 TB
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 (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)
Notes
  • Each internal volume (may consist of multiple drives) is expandable up to 108TB.
  • Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
File Protocol SMB/AFP/NFS/FTP/WebDAV
Maximum Concurrent SMB/AFP/FTP Connections 500
Maximum Concurrent SMB/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.
Maximum Local User Accounts 2,048
Maximum Local Groups 256
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 8
Maximum Hybrid Share Folders 10
Notes For more details about the maximum number of Hybrid Share folders, check this article.
Synology High Availability
Syslog Events per Second 800
Virtualization
Virtualization
VMware vSphere with VAAI
Windows Server 2016
Windows Server 2019
Citrix Ready
OpenStack
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
  • Safari
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.
Antivirus by McAfee (Trial)
Antivirus by McAfee (Trial)
Maximum Users 1,500
Maximum Number of Concurrent Users 150
Notes When applicable, systems are tested configured with maximum memory and set to allow the maximum number of connections.
Document Viewer
Document Viewer
Download Station
Download Station
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.
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. 45GB
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).
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 1,024
Maximum of System Snapshots 65,536
Maximum IP cam (Licenses required) 40 (including 2 Free License) (see all supported IP cameras)
Total FPS (H.264) 1200 FPS @ 720p (1280x720)
800 FPS @ 1080p (1920x1080)
340 FPS @ 3M (2048x1536)
240 FPS @ 5M (2591x1944)
120 FPS @ 4K (3840x2160)
Total FPS (H.265) 1200 FPS @ 720p (1280x720)
1200 FPS @ 1080p (1920x1080)
880 FPS @ 3M (2048x1536)
480 FPS @ 5M (2591x1944)
280 FPS @ 4K (3840x2160)
Total FPS (MJPEG) 380 FPS @ 720p (1280x720)
250 FPS @ 1080p (1920x1080)
190 FPS @ 3M (2048x1536)
140 FPS @ 5M (2591x1944)
Notes
  • Maximum IP cameras and FPS figures are tested with the device fully populated with drives and under a continuous recording setup.
  • Actual system capabilities may differ depending on system configuration, drive performance, number of features enabled, and if additional workloads are present.
Recommended Number of Concurrent Sync Clients 550 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Recommended Number of Hosted Files 50,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
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.
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 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
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.
Maximum Connections 40

Notes:

  1. Model specifications are subject to change without prior notice.
  2. 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.
  3. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
  4. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.