SYNOLOGY 

Synology RackStation RS820+ 4-Bay Rackmount NAS for SMB

Mfg Part Number:  RS820+  
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Price: $1,046.25 + Free Shipping
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In Stock/Mfg Direct Ship
Last Updated: May 10, 2026
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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.

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.

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.

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.

Synology Drive

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

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.

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.

Powered by Synology DSM

Surveillance Station

Complete surveillance solution for recording, monitoring, and management.

Synology Office

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

Synology High Availability

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

DSM UI

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

Security

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

Main Specification
General Information
Manufacturer Synology, Inc
Manufacturer Part Number RS820+
Manufacturer Website Address http://www.synology.com
Brand Name Synology
Product Series Plus
Product Model RS820+
Product Name Plus RS820+ SAN/NAS Storage System
Packaged Quantity 1
Product Type SAN/NAS Storage System
Storage
Number of Hard Drives Supported 4
Number of Hard Drives Installed 0
Total Hard Drive Capacity Supported 64 TB
Number of Solid State Drive Installed 0
Total Solid State Drive Capacity Supported 64 TB
Clustering Supported Yes
Processor & Chipset
Processor Manufacturer Intel
Processor Type Atom
Processor Model C3538
Processor Core Quad-core (4 Core)
Processor Speed 2.10 GHz
Memory
Standard Memory 2 GB
Memory Technology DDR4 SDRAM
Network & Communication
Ethernet Technology Gigabit Ethernet
I/O Expansions
Number of Total Expansion Bays 4
Number of 2.5"/3.5" Bays 4
Total Number of Expansion Slots 1
Expansion Slot Type PCI Express 3.0 x8
Controllers
Controller Type Serial ATA
RAID Supported Yes
RAID Levels 0, 1, 5, 6, 10, Basic, Hybrid RAID, JBOD
Interfaces/Ports
Total Number of USB Ports 2
Number of USB 3.0 Ports 2
Network (RJ-45) Yes
Number of Network (RJ-45) Ports 4
eSATA Yes
Software
Operating System DiskStation Manager
Management & Protocols
Protocols CIFS
Protocols SMB 3.0
Protocols SMB 2.0
Protocols NFS
Protocols SMB 1.0
Protocols AFP
Protocols Kerberos
Protocols iSCSI
Protocols NFSv4
Protocols DLNA
Protocols HTTPS
Protocols CalDAV
Protocols NFSv4.1
Protocols HTTP
Protocols SNMP
Protocols WEBDAV
Protocols FTP
Protocols LDAP
Protocols NFSv3
Power Description
Number of Power Supplies Installed 1
Maximum Power Supply Wattage 150 W
Physical Characteristics
Height 1.7"
Width 18.9"
Depth 19.4"
Form Factor Rack-mountable
Rack Height 1U
Weight (Approximate) 14.11 lb
Miscellaneous
Country of Origin Taiwan

Specifications

  • Mfr Part Number: RS820+
  • Hardware:
    • CPU: Intel Atom C3538 (2.1 GHz, Quad Core) 
    • Memory: 2GB DDR4 (Expandable, Up to 18GB, 2GB + 16 GB)
    • Drive Bay: 4x 3.5" or 2.5" SATA SSD/HDD (Hard drive not included)
    • Maximum Internal Raw Capacity: 64 TB (4x 16 TB drive) (Capacity may vary by RAID types)
    • External Ports: 2x USB 3.0 Ports, 1x eSATA Port, 4x RJ45 1GbE LAN Ports
    • PCIe: 1x Gen3 x8 slot (x4 link)
    • Fan: 3x (40 x 40 mm) Fans
    • Power Recovery
    • Noise Level: 27 dB(A)
    • Scheduled Power On/Off
    • Wake on LAN/WAN
    • Power Supply Unit/Adapter: 150W
    • AC Input Power Voltage: 100 ~ 240 V AC
    • Power Frequency: 50/60Hz, Single Phase
  • Networking Protocols: SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
  • File System:
    • Internal: Btrfs, EXT4
    • External: Btrfs, EXT4, EXT3, FAT, NTFS, HFS+, exFAT
  • File Sharing:
    • Maximum Local User Accounts: 2048
    • Maximum Local Groups: 256
    • Maximum Shared Folder: 512
    • Maximum Shared Folder Sync Tasks: 8
    • Maximum Concurrent CIFS/AFP/FTP Connections: 500
    • Windows Access Control List (ACL) Integration
    • NFS Kerberos Authentication
  • Utilities: Synology Assistant
  • Supported Clients: Windows 7 and 10, Mac OS X 10.11 onwards
  • Power Consumption: 45.28W (Access); 20.81W (HDD Hibernation)
  • Certifications: EAC, VCCI, CCC, RCM, KC, FCC, CE, BSMI
  • Dimensions (WxDxH): 480.0 x 492.6 x 44.0 mm
  • Weight: 6.4 kg
  • Package Contents: Main Unit, Accessory Pack, AC Power Cord, Quick Installation Guide
  • RoHS Compliant
  • Notes:This model does not support the ECC feature, regardless of whether the expansion memory is ECC or non-ECC.
  • All images and descriptions are for illustrative purposes only. Visual representation of the products may not be perfectly accurate. Product specification, functions and appearance may vary by models and differ from country to country . All specifications are subject to change without notice. Although we endeavor to present the most precise and comprehensive information at the time of publication, a small number of items may contain typography or photography errors. Products may not be available in all markets. We recommend you to check with sales for exact offers.
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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