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The Synology DiskStation DS1821 is a high-performance 8-bay network storage solution that supports all aspects of your business with powerful data management, collaboration, networking, and data protection tools.
8-bay NAS server - 4 GB DDR4 RAM - AMD Ryzen V1500B
The Synology DiskStation DS1821+ is a high-performance 8-bay network storage solution that supports all aspects of your business with powerful data management, collaboration, and networking tools, as well as comprehensive data protection mechanisms, in a desktop chassis. The two built-in M.2 SSD slots and Synology's SSD caching technology allow you to improve system and application I/O performance.
Its AMD Ryzen V1500B processor (4-Core/8-Threads) and DDR4 ECC memory (expandable to 32GB) ensure smooth handling of heavy workloads and multitasking. It can be combined with a 10GbE network card to further improve responsiveness.
Synology DS1821+ is a powerful 8-bay desktop NAS that offers you performance for business storage. The storage capacity can be expanded up to 18 drives with two Synology DX517 expansion units.
The DS1821+ is equipped with Synology's optimized Btrfs file system to give you high reliability and performance. Btrfs supports advanced storage technologies that meet the needs of modern businesses.
The DS1821+ features built-in M.2 SSD cache slots, capable of providing 20 times faster I/O response speed than HDDs, without occupying the front disk bays.
File Station is a fast and secure web-based management tool. It can be used with simple drag and drop without complicated settings on Mac or PC. Advanced search and filtering tools make it easy to organise and share files. For full compatibility, the DS1621+ supports the following protocols: AFP, FTP, iSCSI, NFS, SMB, WebDAV.
Synology Office is a collaborative package that combines the convenience and ease of use of public clouds with the data privacy and security of private clouds. It allows you to work seamlessly on documents and spreadsheets in a protected environment.
Select your criteria
General information |
Product name |
Synology DiskStation DS1821 |
Brand |
Synology | |
Model |
DS1821+ | |
Processor |
CPU frequency |
2.2 GHz |
Memory size |
4 GB | |
Memory type |
DDR4 ECC | |
Network |
Network standard(s) |
10/100/1000 Mbps |
Network connector(s) |
4 X Gigabit Ethernet - RJ45 Female | |
Wake On LAN |
Yes | |
DLNA certification |
Yes | |
Storage |
Capacity |
0 GB |
Internal interface |
8 X Serial ATA 6Gb/s (SATA Revision 3) | |
| 2 X M.2 - PCI-E 3.0 x4 | ||
Hard drive format |
2" 1/2 | |
| 3" 1/2 | ||
| M.2 | ||
Hard drive |
Without hard drive | |
Number of discs |
0 | |
Max number of discs |
8 | |
RAID supported |
Yes | |
Supported RAID Modes |
Single Disk | |
| SHR | ||
| JBOD | ||
| 6 | ||
| 5 | ||
| 10 | ||
| 1 | ||
| 0 | ||
File system |
Btrfs | |
| Ext4 | ||
Connector(s) |
4 X USB 3.0 | |
| 2 X eSATA | ||
| 1 X PCI Express 3.0 x8 (x4) | ||
Compatibility |
Server functions |
FTP |
| Multimedia | ||
| Photo | ||
| Video surveillance | ||
| Virtualization | ||
| Web | ||
Windows ADS |
Yes | |
iSCSI (SCSI encapsulation) |
Yes | |
Download without PC |
Yes | |
Scalable |
Yes | |
Supported OS |
Microsoft Windows 8.1 | |
| Microsoft Windows 7 | ||
| Microsoft Windows 10 | ||
| Mac OS X 10.12 or higher | ||
Physical characteristics |
Rackable |
No |
Sound level |
22.2 dB | |
Consumption |
59.8 W | |
Width |
343 mm | |
Height |
166 mm | |
Depth |
243 mm | |
Weight |
6 kg | |
Warranties |
Commercial warranty |
Seller 3 years |
Legal warranty |
See terms & conditions |
See all Synology products
Product referenced on 10 Dec 2020
Delivery a little long (24 days from France to New Caledonia) UPS should improve its services to match the price charged. Perfect packaging, product received without any damage. Easy to install, all that's left to do is transfer the data from the old one to the new one. Delighted with the product.
RAS. Product well received but not yet tested as I am waiting for the Toshiba N300 10T price drop.
Product purchased to replace a DS1815+ which had just given up the ghost during the holidays and hot weather.
Inserted the disks in the right order, activated the switch, and everything was recovered without having to restore a backup.
What happiness...
This NAS replaces an older model with the same form factor, which had given up the ghost.
The big advantage with Synology is that you move the disks from the old one to the new one and in less than 30 minutes, everything is back up and running.
I would appreciate a little more clarity on availability and delivery from LDLC.
Service ok. Delivery on time.
Availability ok.
Replaced the old ds1812+ NAS that broke down.
Physical change of disks on the new NAS. Everything works and restarts without problems.
Adapted old version to new NAS version without any problem.
In the same universe: ds19 | synology | synology ds16 | ds
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