Synology Rackstation RS820+ Diskless Quad Core NAS Server

Synology Part #/MPN: RS820+

DiscTech Item #: SYN-RS820-PLUS-BN-2Y

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Interface Types: SATA, eSATA External, USB 3.0 3.1 3.2, Ethernet RJ45

Encryption/SED Supported

Electrical Interface: Ethernet Gigabit - 1Gbps

On-Board Cache: 2GB

Bays/Ports/Slots: 4

U Height: 1U

Wattage/VA: 150W

Voltage: 110-240V Multi

Synology RackStation RS820+ 4-bay 1U SATA Quad Core NAS Server - Diskless - Brand New

Synology RackStation RS820+ 4-bay 1U SATA / Serial ATA Quad Core NAS / Network Attached Storage Server - Diskless - Brand New

Synology RackStation RS820+ Network Attached Storage Server includes...

  • 1x eSATA Port
  • 2x USB 3.0 port
  • 4x Ethernet RJ45 1Gb LAN ports
  • Intel Atom C3538 Quad Core 2.1 GHz
  • 2GB DDR4 Ram, expandable up to 18GB (2 GB + 16 GB)
  • 4 drive bays, expandable to 8 when paired with an expansion unit
  • accepts 3.5" and 2.5" SATA hard drives and 2.5" SATA Solid State Drives
  • Hardware Encryption Capable

RackStation RS820+

High Performance 1U Rackmount NAS for Effective Data Storage and Management
Synology RackStation RS820+/ RS820RP+ is an ideal network-attached storage solution for centralizing data management. Powered by a 4-core processor, RS820+/RS820RP+ provides both high performance and scalable storage, ideal for file sharing across different platforms and data backup. Synology RS820+/RS820RP+ is backed by Synology’s 3-year limited warranty.


  • 4-core, 2.1 GHz CPU with AES-NI support. 2 GB DDR4 memory expandable up to 18 GB
  • Outstanding 10GbE sequential performance at over 1,621 MB/s reading and 599 MB/s writing.
  • Scale up to 8 drives with Synology Expansion Unit RX4183
  • One PCIe 3.0 slot for an optional 10GbE add-in network interface card, or an M2D18 M.2 SSD adapter card
  • Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder
  • Synology High Availability (SHA) providing continuous services with seamless transitioning between clustered servers

Synology RackStation
Model NumberRS820+ / RS820-PLUS
CPUIntel Atom C3538 4-core 2.1GHz
Hardware encryption engineYes (AES-NI)
Memory2 GB DDR4 Non-ECC onboard (expandable up to 18 GB)
Compatible drive type4 x 3.5" or 2.5" SATA HDD/SSD (drives not included)
Hot swappable driveYes
External port
  • 2 x USB 3.0 port
  • 1 x Expansion port
  • Size (HxWxD)44 x 430.5 x 457.6 mm / 44 x 480 x 492.6 mm (with server ears)
    Weight6.4 kg / 14.11lbs
    LAN4 x Gigabit (RJ-45)
    Wake on LAN/WANYes
    PCIe 2.0 slot
  • 1 x 4-lane x8 slot
  • High-performance network interface card support
  • M.2 NVMe/SATA SSD adapter card support
  • Scheduled power on / offYes
    System fan 3 (40 x 40 x 20 mm)
    AC input power voltage100V to 240V AC/td>
    Power frequency50/60Hz, single phase
    Operating temperature5°C to 35°C
    (40°F - 95°F)
    Storage temperature-20°C to 60°C
    (-5°F to 140°F)
    Relative humidity5% to 95% RH
    Maximum operating altitude5,000 m (16,400 ft)
    General DSM Specification
    Networking protocolSMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN, L2TP)
    File system
  • Internal: Btrfs, ext4
  • External: Btrfs, ext4, ext3, FAT, NTFS, HFS+, exFAT
  • Supported RAID typeSynology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
    Storage management
  • Maximum single volume size: 108TB
  • Maximum system snapshots: 65,536
  • Maximum internal volume: 256
  • SSD cache
  • Read/write cache support
  • M.2 NVMe/SATA SSD support
  • File sharing capability
  • Maximum local user account: 2,048
  • Maximum local group: 256
  • Maximum shared folder: 512
  • Maximum concurrent SMB/NFS/AFP/FTP connection: 500
  • PrivilegeWindows Access Control List (ACL), application privilege
    Directory service Windows AD integration: Domain users login via SMB/NFS/AFP/FTP/File Station, LDAP integration
    VirtualizationVMware vSphere 6.5, Microsoft Hyper-V, Citrix, OpenStack
    SecurityFirewall, encrypted shared folder, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let's Encrypt support, HTTPS (Customizable cipher suite)
    Supported clientsWindows 7 and 10, Mac OS X 10.11 onwards
    Supported browsersChrome, Firefox, Edge, Internet Explorer 10 onwards, Safari 10 onwards; Safari (iOS 10 onwards), Chrome (Android 6.0 onwards) on tablets
    English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svensk, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český
    Packages and Applications
    Synology DriveProvide a universal portal to synchronize your files across various platforms, including Windows, macOS, Linux, Android and iOS. The built-in universal portal allows you to access data anytime and anywhere.
  • Maximum number of hosted files: 1,000,000
  • Maximum number of concurrent connections for PC clients: 550
  • File StationVirtual drive, remote folder, Windows ACL editor, compressing/extracting archived files, bandwidth control for specific users or groups, creating sharing links, transfer logs
    FTP ServerBandwidth control for TCP connections, custom FTP passive port range, anonymous FTP, FTP SSL/TLS and SFTP protocol, boot over the network with TFTP and PXE support, transfer logs
    Presto File ServerHigh-speed data transfer over WAN with exclusive SITA technology between Synology NAS and desktop
    Cloud SyncOne or two-way synchronization with public cloud storage providers including Alibaba Cloud OSS, Amazon Drive, Amazon S3-compatible storage, Backblaze B2, Baidu Cloud, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible storage, Tencent COS, WebDAV servers, Yandex Disk
    Universal SearchOffer global search into applications and files
    iSCSI Manager
  • Maximum iSCSI target: 128
  • Maximum iSCSI LUN: 256
  • iSCSI LUN clone/snapshot support
  • Virtual Machine ManagerDeploy and run various virtual machines on Synology NAS, including Windows, Linux, or Virtual DSM
    Hyper BackupSupport local backup, network backup, and backup data to public clouds
    Backup tools DSM configuration backup, macOS Time Machine support, Synology Drive Client desktop application Shared folder sync - maximum task number: 16
    Snapshot Replication
  • Maximum of shared folder snapshots: 1,024
  • Maximum of Replication: 64
  • Synology High AvailabilityReduce service downtime by setting up two identical NAS into one high-availability cluster
    Active Backup for G SuiteSupport G Suite My Drive and Team Drive backup and restoration
    Active Backup for Office 365Support Office 365 OneDrive for Business, mail, contacts, and calendar backup and restoration
    Active Backup for BusinessAll-in-one backup solution designed for heterogeneous business IT environment, enabling IT admins to remotely manage and monitor protection over PC, servers and VM on one centralized console
    Collaboration tools
  • Collaborate with instant message service Synology Chat, online editor Synology Office, and scheduling assistant Synology Calendar
  • Chat maximum user: 1,500
  • Office maximum user: 1,800
  • Calendar: support CalDAV and access via mobile devices
  • Note StationRich-text note organization and versioning, encryption, sharing, media embedding and attachments
    Synology MailPlus ServerSecure, reliable, and private mail solution with high-availability, load balancing, security and filtering design (includes 5 free email account licenses; additional accounts require the purchasing of additional licenses)
    Synology MailPlusIntuitive webmail interface for Synology MailPlus Server, customizable mail labels, filters, and user interface
    MomentsSupport smart AI album with facial and subject recognition, photo editing and sharing features, similar photo detection, autoediting functions such as color correction and angle adjustments, and AI selection of the best photos. Mobile applications are available on iOS and Android devices.
    Other packagesVideo Station, Photo Station, Audio Station, iTunes Server
    Surveillance StationMaximum IP camera: 40 (total of 1,200 FPS at 720p, H.264) (including two free camera licenses; additional cameras require the purchasing of additional licenses)
    Synology Directory ServerProvide a flexible and cost-effective domain controller solution
    Central Management SystemProvide a single interface to manage and monitor multiple Synology NAS
    VPN ServerMaximum connection: 30, supported VPN protocol: PPTP, OpenVPN, L2TP/IPSec
    Mail ServerSupported Mail Server Protocols: POP3, SMTP, IMAP, Support LDAP/AD account
    Mail StationWebmail interface for Mail Server to receive emails from multiple POP3 mailboxes, customizable SMTP server
    Web StationVirtual host (up to 30 websites), PHP/MariaDB, third-party applications support
    Other packagesDNS Server, RADIUS Server, Log Center
    Storage AnalyzerVolume and quota usage, total size of files, volume usage and trends based on past usage, size of shared folders, large files, most recently modified files, least recently accessed files
    Antivirus Essential Full system scan, scheduled scan, white list customization, virus definition auto update
    Other packagesAdditional 3rd-party packages available on Package Center
    Environment and Packaging
    Environment safetyRoHS compliant
    Package content
  • RS818+/RS818RP+ main unit x 1
  • Quick Installation Guide x 1
  • Accessory pack x 1
  • AC power cord x 1 (RS818+) / 2 (RS818RP+)
  • Optional accessories
  • 8GB / 16GB DDR3L-1600 Non-ECC SO-DIMM kit (RAM1600DDR3L-4GBx2 / RAM1600DDR3L-8GBx2)
  • E10G17-F2 / E10G15-F1 10Gbps Ethernet adapters
  • Expansion Unit RX418
  • Rail Kit RKM114-Rail Kit Mounted / RKS1317-Rail Kit Sliding
  • VisualStation VS360HD, VS960HD
  • Surveillance Device License Pack
  • MailPlus License Pack
  • Virtual DSM License Pack

  • Click here to view the manufacturer's item description/brochure

    ROHS Compliant

    Alternate MPNs: RS820-PLUS RS820PLUS

    Weight: 15 lb

    Warranty: 2 Year Manufacturer

    Brand New

    Condition Levels Explained

    The product is brand new.

    2 Year Manufacturer Warranty

    Product Warranties Explained

    The product has a manufacturer warranty for the time period specified.