DS1821+

High capacity storage and data protection for anyone

Designed for scalability and performance

The 8-bay Synology DS1821+ is aimed at IT enthusiast and SMB customers looking for a powerful and scalable storage solution, its business-grade backup solutions keep users safe and protected from potential data loss, while major improvements to compute capabilities and throughput means workloads are finished faster than ever before.

CPU

AMD Ryzen^™
Quad-core 2.2 GHz

Cache Acceleration

Dual M.2 2280 slots for NVMe Cache

Performance

113K 4K random read IOPS¹

Scalability

Expand up to 18 drives
with two DX517 expansion units

A powerhouse on all fronts

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.¹

Synology Drive Moments Web server Transfer Performance

DS1821+

Predecessor

47.01%

faster in file indexing

DS1821+

Predecessor

49.13%

faster in photo indexing

DS1821+

Predecessor

175%

faster PHP response

DS1821+

Predecessor

177%

faster random IOPS

Turbocharge and supersize it

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
•  

HDD/SSDs, 10GbE network adapter cards, and expansion units are sold separately.

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
Microsoft 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.

• 1Status indicator
• 2Alert indicator
• 3Power button and indicator
• 4LAN indicator

• 5Drive status indicator
• 6Drive tray
• 7Drive tray lock
• 8USB 3.2 Gen 1 port

• 9Power port
• 10System fan
• 11PCIe expansion slot
• 12Kensington Security Slot

• 13Expansion port
• 141GbE RJ-45 port
• 15Reset button
• 16USB 3.2 Gen 1 port