Product information

Pros and cons

According to our NAS expert

  • You can save images on the Synology Drive Server of this NAS, and manage and edit them from every connected device.
  • You can place 2 M.2 NVMe SSDs in this NAS, which makes your drives work 20x faster.
  • The processor has 4 cores, so it can perform multiple tasks at a time.
  • This NAS doesn't include hard drives, so check out our accessories for a complete package.

Description

The Synology DS1821+ is a NAS that you can use as a data base for small businesses and IT experts. You can put up to 8 hard drives in the NAS to keep up to 108TB of files, which you can share with every connected user. The DS1821+ provides room for 2 M.2 NVMe SSDs, which allow you to run the hard drives even faster. You can create an SSD cache with this. Thanks to this cache, you can increase your storage capacity and often-used and demanding files load even faster. The advantage is that you don't have to use keys for HDDs. You can set up different RAID setups. Directly make backups of your saved files, so you don't lose them in case of a drive defect. This Synology NAS uses the program Synology Drive Server. Via this program, you can manage and edit all uploaded files from all the connected devices. This is even possible when the NAS is at the office and you, or one of your colleagues, works from home. Do you want to use the NAS at home? No problem, the DS1821+ is also suitable for personal use. Set up the NAS as a cloud or media server and stream videos, movies, or music from your NAS to your home cinema.

This is what you get

  • Manual(19.30 MB)
  • Accessory pack
  • Power cord
  • 2x RJ-45 LAN cable
  • 2x key for drive trays

Key specs

Number of hard drive slots

8

Suitable for hard drive size

2.5-inch SSD, 3.5-inch HDD, M.2 NVMe

Internal RAM

4 GB

Processor cores

Quad-Core (4)

Built-in hard drive

Show all specifications

Suitable accessories

Rating

  • 5 stars

    7

  • 4 stars

    4

  • 3 stars

    1

  • 2 stars

    0

  • 1 star

    0

Rating per section

10 ()

8,0 ()

8,0 ()

10 ()

Most helpful reviews

9,2/10 ()

Lots of storage capacity.

  • HDD Transfer from old NAS very easy
  • Add HDD without turning off NAS
  • Expandable up to 8 HDDs (7+1 in SHR)
  • Sound HDDs - Move NAS far enough

Smooth transfer of the 5 HDDs of 8TB from the DS1520+ to this DS1821+. Adding 6th disk 8TB disk took 24 hours (from 4x8+8 to 5x8+8). Expected 2 days so very happy with it.

  • Wimsalabim

  • 31 October 2021

  • Automatic translation off Dutch

10/10 ()

Nice NAS with the right functionalities

Have had the NAS for a week now and it works great. User-friendly interface with just the right amount of options. Great that there are many slots available and that a configuration can be chosen for a combination of different sizes of disks, so that old disks are still usable

  • Vincent Nibbelke

  • 9 March 2021

  • Automatic translation off Dutch

8,4/10 ()

Expensive, but then you also have something

  • Fast
  • DSM is reliable
  • Quiet
  • Price

Great NAS for home use with more than enough options. Both software and hardware. I am very satisfied with the purchase Not cheap, especially considering the meager decoration. Additional parts are expensive

  • Frank Lommen

  • 30 July 2021

  • Automatic translation off Dutch

Show all 12 reviews

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Insure your nas for damage and theft

You can select one of the insurances below in your shopping cart. It will protect your brand new NAS against damage and/or theft.

Coverage

  • Fall and impact damage
  • Manufacturing errors outside the warranty
  • Theft
  • Water damage

What isn't covered?

  • Damage caused by gross negligence isn't covered
  • Damage that doesn't affect the product functioning (such as dents) isn't covered

Your ERGO product insurance

This insurance is governed by Belgian law. That's why you can always go to the or our customer service. You have a 30-day return window, so you're not bound to anything. The insurance can be cancelled every year, even if you've paid in advance. If you cancel it earlier, you receive the overpaid amount back.

How do I insure my nas?

Add your nas to your shopping cart and choose your Backup Plan in the next step.

ERGO Appliance insurance
  • Pay 3 years in advance €55.00 one-time payment (€18.33 per year)
  • Pay 5 years in advance €89.00 one-time payment (€17.80 per year)

In case of damage, a deductible of 10% (repair) or 10% (theft) applies

Synology DS1821+

Specifications

Product

Product number

875684

Manufacturer code

DS1821+

Brand

Synology

Warranty

5 years

Processing of your defect

Via Coolblue

Memory properties

Built-in hard drive

Number of hard drive slots

8

Suitable for hard drive size

2.5-inch SSD, 3.5-inch HDD, M.2 NVMe

RAID

Basic, JBOD, RAID 0, RAID 1, RAID 10, RAID 5, RAID 6, Synology Hybrid RAID

Internal RAM

4 GB

Total number of RAM slots

2

Expandable memory

Maximum internal memory

32 GB

Memory type

SO-DIMM DDR4

Functions

NAS functions

Backup server, Database server, Download server, FTP server, Mail server, Media server, Photo server, VPN server, Web server, iTunes server

NAS application center

Maximum number of shared folders

512

Maximum number of local users`

2048

Plex support

Number of IP camera licenses included

2

DLNA

UPnP AV support

FTP server

On/off switch

Automatic switch on/off

Kensington lock

Apple Time Machine support

Chromecast support

Suitable for IFTTT

Recommended for use

Making a backup, Media streaming, Personal cloud

Awards

Best tested

Connectors and connections

Connection type

Wired

LACP Link aggregation

iSCSI support

Thunderbolt connector

Bluetooth

Ethernet speed

Gigabit Ethernet (1000Mbps)

Number of Ethernet ports

4

Processor properties

Processor

AMD Ryzen 3

Processor brand

AMD

Processor family

Ryzen 3

Processor cores

Quad-Core (4)

Clock speed

2,2 GHz

Turbo speed

2,2 GHz

Physical properties

Depth

24,3 cm

Width

34,3 cm

Height

16,6 cm

Type NAS

Upright

Color

Black

Weight

6 kg