Synology DiskStation DS1821+ 8-Bay NAS Enclosure

Product #96273 | SKU DS1821+ | Synology
In Stock with Supplier Usually ships in 2 - 3 working days what does this mean?
Our Price $2,345.00
In Stock with Supplier Usually ships in 2 - 3 working days what does this mean?
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The Synology DiskStation DS1821+ 8-Bay NAS Enclosure 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. Reduce transfer times with the DS1821+, designed to accelerate your workloads. Easily add faster networking and NVMe drives to further boost performance.

Make the most of high-performance networking and file access without taking up unnecessary space. DS1821+ comes equipped with 8 bays and can scale up to 18 bays with 2 DX517 expansion units as your data needs grow.

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.

Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.


Total Installed Memory 4 GB ECC DDR4
User-Replaceable Memory 1 x 4 GB
Total Memory Slots 2 x SO-DIMM
Maximum Memory Capacity 32 GB
Number of Bays 8 x 2.5"/3.5"
2 x M.2 (2280)
Inputs/Outputs 4 x RJ45 Gigabit Ethernet
4 x USB-A 3.0 / 3.1/3.2 Gen 1
2 x eSATA
Compatible Drive Interface SATA (Unspecified Version)
Media Card Slots None
Maximum Filled Capacity 108 TB
Form Factor Desktop
RAID RAID 0, 1, 10, 5, 6, JBOD, Synology Hybrid
Hot-Swap Support Yes
PCI Expansion 1 x PCIe 3.0 (x8 Electrical)
Wake on LAN Yes
Link Aggregation and Failover Support Yes
Supported Protocols CalDAV
SMB 2.1
SMB 3.0
iSCSI Target 128
Max Concurrent Connections 550
Max Folders 512
Max Sync Tasks 80
Max Groups 256
Max User Accounts 2048
Max Volume Number 64
Max Cameras Supported 40
Installed Operating System Synology
Supported File Systems Internal: BTRFS, EXT4
External: BTRFS, EXT3, EXT4, FAT, HFS+, NTFS, exFAT
OS Compatibility Windows 7 or Later
macOS 10.12 or Later
*As of January, 2021: Cheque with manufacturer for the most up-to-date compatibility
Mobile App Compatible Yes
*As of June, 2023: Cheque with manufacturer for the most up-to-date compatibility
Supported Browsers Chrome, Edge, Firefox, Internet Explorer, Safari
Encryption AES-NI
Security Features Password Protection
VPN Client Connections 30
AC Input Power 100 to 240 VAC, 50 / 60 Hz
Power Source AC Adapter
Power Consumption 59.8 W (Typical)
26.18 W (Idle)
PSU Wattage 1 x 250 W
Operating Temperature 32 to 72°F / 0 to 40°C
Operating Humidity 5 to 95%
Storage Temperature -4 to 140°F / -20 to 60°C
Status Monitoring LED Indicator
Audible Alarm Yes
Cooling 2 x 120 mm Fans
Noise Level 22.2 dBA
Built-In Speakers None
Dimensions 13.5 x 9.6 x 6.5" / 343 x 243 x 166 mm
Weight 13.2 lb / 6.0 kg

In The Box

  • Synology DiskStation DS1821+ 8-Bay NAS Enclosure
  • Power Cable
  • Accessory Pack
  • RJ45 LAN Cable


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  • Product: Synology DiskStation DS1821+ 8-Bay NAS Enclosure
  • Manufacturer: Synology
  • Model: DS1821+
  • SKU: DS1821+
  • RM Product #: 96273
  • Warranty: 2 - 5 year manufacturer warranty depending on exact model. Check with the Sales team for more information.

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