Performance Compatibility Downloads Compare

RackStation RS820+​/​RS820RP+

Ideal 1U rackmount NAS for high-performance data management

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.

Download Datasheet

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.

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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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

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 centralizes backup tasks for VMware, Windows, Office 365 and G Suite — so you can manage these backups to Synology NAS from one simple console.
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.
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Synology Drive

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

Real-time collaboration on your private cloud

Synology 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. Learn more

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

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

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

  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

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

Powered by Synology DSM

Surveillance Station

Complete surveillance solution for recording, monitoring, and management.

Learn more

Synology Office

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

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Synology High Availability

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

Learn more

DSM UI

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

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Security

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

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All-in-one server

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

Learn more
  • 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 Specs
  • Software Specs

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
Maximum Internal Raw Capacity 64 TB (16 TB drive x 4) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units 128 TB (64 TB + 16 TB drive x 4) (Capacity may vary by RAID types)
Maximum Single Volume Size* 108 TB
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.
  • 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)
  • 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 3.0 Port 2
eSATA Port 1

PCIe

PCIe

 PCIe Expansion 1 x Gen3 x8 slot (black, x4 link)
Add-In-Card Support
  • PCIe Network Interface Card (Learn more)
  • M2D18 - Dual M.2 SATA/NVMe SSD adapter card for SSD cache

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

 Form Factor (RU) 1U
Size (Height x Width x Depth) 44 mm x 480 mm x 492.6 mm
44 mm x 480 mm x 518.6 mm (for RP model)
Weight 6.4 kg
7.96 kg (for RP model)
Rack Installation Support* 4-post 19" rack (Synology Rail Kit - RKM114/RKS1317)
Notes The rail kit is sold separately

Others

Others

 System Fan 40 mm x 40 mm x 3 pcs
40 mm x 40 mm x 2 pcs (for RP model)
Fan Speed Mode
  • Full-Speed Mode
  • Cool Mode
  • Quiet Mode
Power Recovery
Noise Level* 27 dB(A)
39.9 dB(A) (for RP model)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter 150 W
Redundant Power Supply yes (for RP model)
AC Input Power Voltage 100 V to 240 V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 37.94 W (Access)
20.96 W (HDD Hibernation)
38.88 W (Access) (for RP model)
22.17 W (HDD Hibernation) (for RP model)
British Thermal Unit 129.54 BTU/hr (Access)
71.57 BTU/hr (HDD Hibernation)
132.75 BTU/hr (Access) (for RP model)
75.70 BTU/hr (HDD Hibernation) (for RP model)
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
  • EAC
  • VCCI
  • CCC
  • RCM
  • KC
  • FCC
  • CE
  • BSMI

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
  • Main Unit X 1
  • Accessory Pack X 1
  • AC Power Cord X 1
  • AC Power Cord X 2 (for RP model)
  • Quick Installation Guide X 1

Optional Accessories

Optional Accessories
Notes
  • 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

Storage Management

Storage Management

 Maximum Internal Volume Number 64
Maximum iSCSI Target Number 128
Maximum iSCSI LUN 256
iSCSI LUN Clone/Snapshot, Windows ODX
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)

File Services

File Services

 File Protocol CIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections 500
Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) 2,000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication

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 8

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
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
  • Chrome
  • Firefox
  • Edge
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • 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.
  • 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.

Document Viewer

Document Viewer

Download Station

Download Station
Maximum Concurrent Download Tasks 80

exFAT Access (Optional)

exFAT Access (Optional)

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. 45GB
Notes
  • The 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.
  • 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)
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
  • 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
  • For 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

Synology Office
Maximum Users 1,800
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.
  • 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 20

Notes:

  • Model specifications are subject to change without prior notice.
  • The figures are based on Synology internal testing. No other services or applications are processed during the performance tests.