Synology DiskStation DS1821+ 8 Bay NAS


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SKU: Synology DS1821+ Categories: , ,

Synology DiskStation DS1821+ 8 Bay NAS

High capacity storage and data protection for anyone

Synology DiskStation DS1821+ is a powerful 8-bay network-attached storage solution designed to store and protect mission-critical 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 110Kor 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 more2 without occupying drive bays using dual built-in M.2 slots for NVMe SSD cache
  • Expansion Made Easy: 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.

Technical Specifications

Model Synology DS1821+
CPU AMD RyzenTM V1500B quad-core 2.2 GHz
Memory 4 GB DDR4 ECC SODIMM (expandable up to 32 GB)
Drive Bays 8
External port 4 x USB 3.2 Gen 1, 2 x eSATA
LAN 4 x 1GbE RJ-45
Compatible HDD/SSD Type • 8 x 3.5″ or 2.5″ SATA HDD/SSD (drives not included)
• 2 x M.2 2280 NVMe SSD (drives not included)
Max. IP Camera Number 40
Max. User Accounts 2048
Max. Concurrent Connections (CIFS, FTP, AFP) 1000
Wake on LAN/WAN Yes
Weight 6.0 kg
Warranty (Years) 3


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