Synology DiskStation DS1821+
High capacity storage and data protection for anyone
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Please Note: All Prices are Inclusive of GST
Overview:
Synology DiskStation DS1821+ is a powerful 8-bay network-attached-storage solution designed to store and protect missioncritical data. Designed to tackle increasing amounts of unstructured data, the low-noise desktop form-factor of the DS1821+ is built for both SOHO and SMB environments. With performance over 110K or 177% higher 4K random read IOPS than its predecessor, the DS1821+ is fast, with ample room for scalability.
- Accelerated Performance
177% higher 4K random read IOPS and 76% faster sequential write speeds compared to its predecessor - Maximize Performance
Turbocharge HDD arrays by 20x or more without occupying drive bays using dual built-in M.2 slots for NVMe SSD cache - Easy Expansion
Scale-up on-demand to 18 drives with two DX517 expansion units - Includes Everything to Protect Your Data
Back up critical data to and from public clouds, Windows PCs and servers, virtual machines, and data on the NAS with Synology Active Backup suite, Hyper Backup, and Snapshot Replication - Ready for 10GbE
Add in a 10GbE SFP+ or RJ-45 NIC to instantly increase network bandwidth based on your existing infrastructure
CPU
AMD Ryzen Quad-core 2.2 GHz
Cache Acceleration
Dual M.2 2280 slots for NVMe Cache
Performance
113K 4K random read IOPS
Scalability
Expand up to 18 drives with two DX517 expansion units
Features:
Faster than ever
The DS1821+ can handle demanding application workloads and a greater number of concurrent users. Experience faster file indexing in Synology Drive, photo organization in Moments, and more responsive web services.
Turbocharge and expand it
Upgrade your DS1621+ to match your data requirements, whether it is for faster networking or for higher storage capacity.
- 2 x M.2 NVMe
Enable ultra-fast NVMe cache to accelerate HDD arrays by 20X or more - 10GbE support
Add in faster SFP+ or RJ-45 networking to turbocharge existing workflows - Storage Expansion
Supports two DX517 expansion units for a total of 18 bays
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, DS1821+ supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, and WebDAV.
Fully certified storage virtualization solutions
Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.
Ultimate Backup Solution
DS1821+ 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
Centralize backup tasks for VMware, Windows, and file servers. Restore whatever you want fast and reliably when needed.
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.
Drive Package
Safeguard your computer with Synology Drive Client. Effortlessly perform real-time data backups and point-in-time file recovery.
Active Backup for Office 365 / G Suite
Protect corporate data stored on the cloud. On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.
Engineered for reliability, backed by Synology
DS1821+ 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 DiskStation Manager
Central Management System
Conveniently manage your fleet of Synology NAS from a centralized console.
Synology MailPlus
Secure, reliable, and private mail server solution with an intuitive and modern mail client.
Synology High Availability
Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.
Synology Drive
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
Surveillance Station
Complete surveillance solution for recording, monitoring, and management.
Security
Comprehensive built-in security tools are constantly updated to protect your devices against evolving
Works best with Synology drives
Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.
- SATA: 3.5" HDD HAT5300
- NVMe: M.2 SSD SNV3000
- SATA: 2.5" SSD SAT5200
Specifications:
- Status indicator
- Alert indicator
- Power button and indicator
- LAN indicator
- Drive status indicator
- Drive tray
- Drive tray lock
- USB 3.2 Gen 1 port
- Power port
- System fan
- PCIe expansion slot
- Kensington Security Slot
- Expansion port
- 1GbE RJ-45 port
- Reset button
- USB 3.2 Gen 1 port
| DiskStation DS1821+ Hardware Specifications: | |
|---|---|
| Hardware Specifications | |
| CPU | AMD Ryzen V1500B quad-core 2.2 GHz |
| Hardware encryption engine | Yes (AES-NI) |
| Memory | 4 GB DDR4 ECC SODIMM (expandable up to 32 GB) |
| Compatible drive type |
|
| Hot swappable drive | Yes |
| External port |
|
| Size (Height x Width x Depth) | 166 x 343 x 243 mm |
| Weight | 6.0 kg |
| LAN port | 4 x 1GbE RJ-45 |
| Wake on LAN/WAN | Yes |
| PCIe 3.0 slot |
|
| Scheduled power on/of | Yes |
| System fan | 2 (120 x 120 x 25 mm) |
| AC input power voltage | 100 V to 240 V AC |
| Power Frequency | 50 to 60Hz, single phase |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -20°C to 60°C (-5°F to 140°F) |
| Relative Humidity | 5% to 95% RH |
| Maximum operating altitude | 5,000 m (16,400 ft) |
| General DSM specification | |
| Networking protocol | SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN, L2TP) |
| File system |
|
| Supported RAID type | Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 |
| Storage management |
|
| SSD cache |
|
| File sharing capability |
|
| Privilege | Windows Access Control List (ACL), application privileges |
| Directory service | Windows AD integration: Domain users login via SMB/NFS/AFP/FTP/File Station, LDAP integration |
| Virtualization | VMware vSphere 6.5, Microsoft Hyper-V, Citrix, OpenStack |
| Security | Firewall, shared folder encryption, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let's Encrypt support, HTTPS (customizable cipher suite) |
| Supported client | Windows 7 onwards, macOS 10.12 onwards |
| Supported browser | Chrome, Firefox, Internet Explorer 11 onwards, Safari 11 onwards; Safari (iOS 11 onwards), Chrome (Android™ 6.0 onwards) |
| File Server & Synchronization | |
| Drive | Provide 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.
|
| File Station | Virtual drives, remote folders, Windows ACL editor, compressing/extracting archived files, bandwidth control for specific users/groups, creating sharing links, transfer logs |
| FTP Server | Bandwidth 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 Server | High-speed data transfer over WAN with exclusive SITA technology between Synology NAS and desktop |
| Cloud Sync | One or two-way synchronization with public cloud storage providers including Alibaba Cloud OSS, 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 Search | Offer global search into applications and files |
| File Server & Synchronization | |
| iSCSI Manager |
|
| Virtual Machine Manager | Deploy and run various virtual machines on Synology NAS, including Windows®, Linux®, or Virtual DSM |
| Data Protection & Backup Solution | |
| Hyper Backup | Support local backup, network backup, and data backup to public clouds |
| Backup tools |
|
| Snapshot Replication |
|
| Synology High Availability | Reduce service downtime by setting up two identical NAS into one high-availability cluster |
| Active Backup for G Suite | Support G Suite My Drive and Team Drive backup and restoration |
| Active Backup for Microsoft 365 | Supports Microsoft 365 OneDrive for Business, mail, contacts, and calendar backup and restoration |
| Active Backup for Business | All-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 |
| Productivity & Collaboration | |
| Collaboration tools | Collaborate with instant message service Synology Chat, online editor Synology Office, and scheduling assistant Synology Calendar
|
| Note Station | Rich-text note organization and versioning, encryption, sharing, media embedding and attachments |
| Synology MailPlus Server | Secure, 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 MailPlus | Intuitive webmail interface for Synology MailPlus Server, customizable mail labels, filters, and user interface |
| Multimedia | |
| Moments | Support 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 packages | Video Station, Photo Station, Audio Station, iTunes Server |
| Surveillance | |
| Surveillance Station | Maximum 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) |
| All-in-One Server | |
| Synology Directory Server | Provide a flexible and cost-effective domain controller solution |
| Central Management System | Provide a single interface to manage and monitor multiple Synology NAS |
| VPN Server | Maximum connection: 30. Supported VPN protocol: PPTP, OpenVPN™, L2TP/IPSec |
| Mail Server | Supported Mail Server protocol: POP3, SMTP, IMAP. LDAP/AD account support |
| Mail Station | Webmail interface for Mail Server to receive emails from multiple POP3 mailboxes, customizable SMTP server |
| Web Station | Virtual host (up to 30 websites), PHP/MariaDB, 3rd-party applications support |
| Other packages | DNS Server, RADIUS Server, Log Center |
| Others | |
| Storage Analyzer | Volume 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 |
| iOS/Android™ applications | Synology Drive, Synology MailPlus, Synology Chat, Synology LiveCam, Moments, DS audio, DS photo, DS video, DS cam, DS file, DS finder, DS note |
| Other packages | Additional 3rd-party packages available on Package Center |
| Certifications and Packaging | |
| Environment safety | RoHS compliant |
| Package content |
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| Optional accessories |
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| Warranty | 3 Years |
Documentation:
Download the Synology DiskStation DS1821+ Datasheet (PDF).
- All Prices are Inclusive of GST
- Pricing and product availability subject to change without notice.
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