Synology DS1821+ 8-Bay NAS


Stock at the supplier

SKU: DS1821+ | REC1607W Categories: , , Tag:

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.

Turbocharge and supersize it

Upgrade your DS1821+ 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

NOTE: 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.

Synology Drive

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

Active Backup for
Microsoft 365 / Google Workspace

On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.


  • CPU: AMD 4-Core/8-Thread Ryzen V1500B 64-Bit 2.2GHz
  • RAM: 4GB DDR4 SODIMM (1x Open Slot – Maximum Memory Capacity is 32GB)
  • Bays: 8x 3.5″ (2.5″ with optional bracket)
  • Max Expansion Bays: 18 (DX517 x2)
  • M.2 Drive Slots: 2x NVMe
  • Max Volume: 108TB
  • Hot Swappable: Yes
  • RAID: Synology Hybrid, Basic, JBOD, 0, 1, 5, 6, 10
  • RAID Migration: Basic to RAID 1 & 5 | RAID 1 to 5 | RAID 5 to 6
  • UTP: 4x RJ-45 1GbE LAN with Link Aggregation / Failover Support
  • USB: 2x 3.2 Gen 1
  • PCIe Expansion: 1x Gen3 x8 Slot (x4 link)
  • Dimensions: 166x343x243mm
  • Weight: 6kg
  • Noise Level: 22.2dB
  • Power: 250W
  • 3 Year Synology Limited Warranty
Weight 6 kg